yoga/src/__tests__/Layout-test.js

/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */
/* globals layoutTestUtils */

var testLayout = layoutTestUtils.testLayout;
var testLayoutAgainstDomOnly = layoutTestUtils.testLayoutAgainstDomOnly;
var testLayoutAgainstExpectedOnly = layoutTestUtils.testLayoutAgainstExpectedOnly;
var testFillNodes = layoutTestUtils.testFillNodes;
var testCanUseCachedMeasurement = layoutTestUtils.testCanUseCachedMeasurement;
var text = layoutTestUtils.text;
var texts = layoutTestUtils.texts;
var textSizes = layoutTestUtils.textSizes;
var measureWithRatio2 = layoutTestUtils.measureWithRatio2();
var measureWithMatchParent = layoutTestUtils.measureWithMatchParent();

describe('Javascript Only', function() {
  it('should fill root node with layout, style, and children', function() {
    testFillNodes(
      {},
      {layout: {width: undefined, height: undefined, top: 0, left: 0, right: 0, bottom: 0}, style: {}, children: []}
    );
  });
  it('should fill root and child node with layout, style, and children', function() {
    testFillNodes(
      {children: [{}]},
      {layout: {width: undefined, height: undefined, top: 0, left: 0, right: 0, bottom: 0}, style: {}, children: [
        {layout: {width: undefined, height: undefined, top: 0, left: 0, right: 0, bottom: 0}, style: {}, children: []}
      ]}
    );
  });
  it('should not replace user-provided layout information', function() {
    testFillNodes(
      {layout: {width: 200}},
      {layout: {width: 200}, style: {}, children: []}
    );
  });  
  it('should only invoke measure function one time in simple layout', function() {
    var measureInvocations = 0;
    function measure(width, widthMode, height, heightMode) {
      measureInvocations++;
      return { width: 25, height: 25 };
    }
    
    testLayoutAgainstExpectedOnly(
      {style: {width: 100, height: 100}, children: [
        {style: {measure: measure}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 25, top: 0, left: 0}
      ]}
    );
    
    expect(measureInvocations).toEqual(1);
  });
});

describe('JavaScript Only: canUseCachedTextMeasurement', function() {
  var measureModes = ['undefined', 'exactly', 'at-most'];
  
  var assertCanReuse = testCanUseCachedMeasurement.bind(null, true);
  var assertCannotReuse = testCanUseCachedMeasurement.bind(null, false);
  
  it('should not reuse when width mode is "exactly" and available width != measurement', function() {
    measureModes.forEach(function(widthMeasureMode) {
      measureModes.forEach(function(heightMeasureMode) {
        var computedWidth = 100;
        var computedHeight = 200;
        var availableWidth = widthMeasureMode === 'undefined' ? undefined : computedWidth;
        var availableHeight = heightMeasureMode === 'undefined' ? undefined : computedHeight;
        
        var cacheEntry = {
          availableWidth: availableWidth, widthMeasureMode: widthMeasureMode, computedWidth: computedWidth,
          availableHeight: availableHeight, heightMeasureMode: heightMeasureMode, computedHeight: computedHeight
        };
        
        assertCannotReuse(
          {
            availableWidth: computedWidth - 1, widthMeasureMode: 'exactly',
            availableHeight: availableHeight, heightMeasureMode: heightMeasureMode
          },
          cacheEntry
        );
        
        assertCannotReuse(
          {
            availableWidth: computedWidth + 1, widthMeasureMode: 'exactly',
            availableHeight: availableHeight, heightMeasureMode: heightMeasureMode
          },
          cacheEntry
        );
      });
    });
  });
  
  it('should not reuse when height mode is "exactly" and available height != measurement', function() {
    measureModes.forEach(function(widthMeasureMode) {
      measureModes.forEach(function(heightMeasureMode) {
        var computedWidth = 100;
        var computedHeight = 200;
        var availableWidth = widthMeasureMode === 'undefined' ? undefined : computedWidth;
        var availableHeight = heightMeasureMode === 'undefined' ? undefined : computedHeight;
        
        var cacheEntry = {
          availableWidth: availableWidth, widthMeasureMode: widthMeasureMode, computedWidth: computedWidth,
          availableHeight: availableHeight, heightMeasureMode: heightMeasureMode, computedHeight: computedHeight
        };
        
        assertCannotReuse(
          {
            availableWidth: availableWidth, widthMeasureMode: widthMeasureMode,
            availableHeight: computedHeight - 1, heightMeasureMode: 'exactly'
          },
          cacheEntry
        );
        
        assertCannotReuse(
          {
            availableWidth: availableWidth, widthMeasureMode: widthMeasureMode,
            availableHeight: computedHeight + 1, heightMeasureMode: 'exactly'
          },
          cacheEntry
        );
      });
    });
  });
  
  it('should reuse exact matches', function() {
    measureModes.forEach(function(widthMeasureMode) {
      measureModes.forEach(function(heightMeasureMode) {
        var availableWidth = widthMeasureMode === 'undefined' ? undefined : 100;
        var availableHeight = heightMeasureMode === 'undefined' ? undefined : 200;
        assertCanReuse(
          {
            availableWidth: availableWidth, widthMeasureMode: widthMeasureMode,
            availableHeight: availableHeight, heightMeasureMode: heightMeasureMode
          },
          {
            availableWidth: availableWidth, widthMeasureMode: widthMeasureMode, computedWidth: 1,
            availableHeight: availableHeight, heightMeasureMode: heightMeasureMode, computedHeight: 2
          }
        );
      });
    });
  });
  
  it('should reuse cache entry with unconstrained width when width mode is "exactly" and available width == measurement', function() {
    measureModes.forEach(function(heightMeasureMode) {
      var computedWidth = 100;
      var computedHeight = 200;
      var availableHeight = heightMeasureMode === 'undefined' ? undefined : computedHeight;
      
      assertCanReuse(
        {
          availableWidth: computedWidth, widthMeasureMode: 'exactly',
          availableHeight: availableHeight, heightMeasureMode: heightMeasureMode
        },
        {
          availableWidth: undefined, widthMeasureMode: 'undefined', computedWidth: computedWidth,
          availableHeight: availableHeight, heightMeasureMode: heightMeasureMode, computedHeight: computedHeight
        }
      );
    });
  });
    
  it('should reuse cache entry with unconstrained height when height mode is "exactly" and height == measurement', function() {
    measureModes.forEach(function(widthMeasureMode) {
      var computedWidth = 100;
      var computedHeight = 200;
      var availableWidth = widthMeasureMode === 'undefined' ? undefined : computedWidth;
        
      assertCanReuse(
        {
          availableWidth: availableWidth, widthMeasureMode: widthMeasureMode,
          availableHeight: computedHeight, heightMeasureMode: 'exactly'
        },
        {
          availableWidth: availableWidth, widthMeasureMode: widthMeasureMode, computedWidth: computedWidth,
          availableHeight: undefined, heightMeasureMode: 'undefined', computedHeight: computedHeight
        }
      );
    });
  });
});

describe('Layout', function() {
  it('should layout a single node with width and height', function() {
    testLayout({
      style: {width: 100, height: 200}
    }, {
      width: 100, height: 200, top: 0, left: 0
    });
  });

  it('should layout node with children', function() {
    testLayout(
      {style: {width: 1000, height: 1000}, children: [
        {style: {width: 500, height: 500}},
        {style: {width: 250, height: 250}},
        {style: {width: 125, height: 125}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 500, height: 500, top: 0, left: 0},
        {width: 250, height: 250, top: 500, left: 0},
        {width: 125, height: 125, top: 750, left: 0}
      ]}
    );
  });

  it('should layout node with children in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse'}, children: [
        {style: {width: 500, height: 500}},
        {style: {width: 250, height: 250}},
        {style: {width: 125, height: 125}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 500, height: 500, top: 500, left: 0},
        {width: 250, height: 250, top: 250, left: 0},
        {width: 125, height: 125, top: 125, left: 0}
      ]}
    );
  });

  it('should layout node with nested children', function() {
    testLayout(
      {style: {width: 1000, height: 1000}, children: [
        {style: {width: 500, height: 500}},
        {style: {width: 500, height: 500}, children: [
          {style: {width: 250, height: 250}},
          {style: {width: 250, height: 250}}
        ]}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 500, height: 500, top: 0, left: 0},
        {width: 500, height: 500, top: 500, left: 0, children: [
          {width: 250, height: 250, top: 0, left: 0},
          {width: 250, height: 250, top: 250, left: 0}
        ]}
      ]}
    );
  });

  it('should layout node with nested children in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse'}, children: [
        {style: {width: 500, height: 500}},
        {style: {width: 500, height: 500, flexDirection: 'column-reverse'}, children: [
          {style: {width: 250, height: 250}},
          {style: {width: 250, height: 250}}
        ]}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 500, height: 500, top: 500, left: 0},
        {width: 500, height: 500, top: 0, left: 0, children: [
          {width: 250, height: 250, top: 250, left: 0},
          {width: 250, height: 250, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout node with margin', function() {
    testLayout(
      {style: {width: 100, height: 200, margin: 10}},
      {width: 100, height: 200, top: 10, left: 10}
    );
  });

  it('should layout node with several children', function() {
    testLayout(
      {style: {width: 1000, height: 1000, margin: 10}, children: [
        {style: {width: 100, height: 100, margin: 50}},
        {style: {width: 100, height: 100, margin: 25}},
        {style: {width: 100, height: 100, margin: 10}}
      ]},
      {width: 1000, height: 1000, top: 10, left: 10, children: [
        {width: 100, height: 100, top: 50, left: 50},
        {width: 100, height: 100, top: 225, left: 25},
        {width: 100, height: 100, top: 360, left: 10}
      ]}
    );
  });

  it('should layout node with several children in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', margin: 10}, children: [
        {style: {width: 100, height: 100, margin: 50}},
        {style: {width: 100, height: 100, margin: 25}},
        {style: {width: 100, height: 100, margin: 10}}
      ]},
      {width: 1000, height: 1000, top: 10, left: 10, children: [
        {width: 100, height: 100, top: 850, left: 50},
        {width: 100, height: 100, top: 675, left: 25},
        {width: 100, height: 100, top: 540, left: 10}
      ]}
    );
  });

  it('should layout rtl with reverse correctly', function() {
    testLayout(
      {style: {width: 1000, height: 1000, direction: 'rtl', flexDirection: 'row-reverse'}, children: [
        {style: {width: 100, height: 200}},
        {style: {width: 300, height: 150}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 0, left: 0},
        {width: 300, height: 150, top: 0, left: 100}
      ]}
    );
  });

  it('should layout node with row flex direction', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'row'}, children: [
        {style: {width: 100, height: 200}},
        {style: {width: 300, height: 150}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 0, left: 0},
        {width: 300, height: 150, top: 0, left: 100}
      ]}
    );
  });

  it('should layout node with row flex direction in rtl', function() {
    testLayout(
      {style: {width: 1000, height: 1000, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {width: 100, height: 200}},
        {style: {width: 300, height: 150}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 0, left: 900},
        {width: 300, height: 150, top: 0, left: 600}
      ]}
    );
  });

  it('should layout node based on children main dimensions', function() {
    testLayout(
      {style: {width: 300}, children: [
        {style: {width: 100, height: 200}},
        {style: {width: 300, height: 150}}
      ]},
      {width: 300, height: 350, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 0, left: 0},
        {width: 300, height: 150, top: 200, left: 0}
      ]}
    );
  });

  it('should layout node based on children main dimensions in reverse', function() {
    testLayout(
      {style: {width: 300, flexDirection: 'column-reverse'}, children: [
        {style: {width: 100, height: 200}},
        {style: {width: 300, height: 150}}
      ]},
      {width: 300, height: 350, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 150, left: 0},
        {width: 300, height: 150, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with just flex', function() {
    testLayout(
      {style: {width: 1000, height: 1000}, children: [
        {style: {width: 100, height: 200}},
        {style: {width: 100, flex: 1}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 0, left: 0},
        {width: 100, height: 800, top: 200, left: 0}
      ]}
    );
  });

  it('should layout node with just flex in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse'}, children: [
        {style: {width: 100, height: 200}},
        {style: {width: 100, flex: 1}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 800, left: 0},
        {width: 100, height: 800, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with flex recursively', function() {
    testLayout(
      {style: {width: 1000, height: 1000}, children: [
        {style: {width: 1000, flex: 1}, children: [
          {style: {width: 1000, flex: 1}, children: [
            {style: {width: 1000, flex: 1}}
          ]}
        ]}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 1000, height: 1000, top: 0, left: 0, children: [
          {width: 1000, height: 1000, top: 0, left: 0, children: [
            {width: 1000, height: 1000, top: 0, left: 0}
          ]}
        ]}
      ]}
    );
  });

  it('should layout node with flex recursively in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse'}, children: [
        {style: {width: 1000, flex: 1, flexDirection: 'column-reverse'}, children: [
          {style: {width: 1000, flex: 1, flexDirection: 'column-reverse'}, children: [
            {style: {width: 1000, flex: 1, flexDirection: 'column-reverse'}}
          ]}
        ]}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 1000, height: 1000, top: 0, left: 0, children: [
          {width: 1000, height: 1000, top: 0, left: 0, children: [
            {width: 1000, height: 1000, top: 0, left: 0}
          ]}
        ]}
      ]}
    );
  });

  it('should layout node with targeted margin', function() {
    testLayout(
      {style: {width: 1000, height: 1000, marginTop: 10, marginLeft: 5}, children: [
        {style: {width: 100, height: 100, marginTop: 50, marginLeft: 15, marginBottom: 20}},
        {style: {width: 100, height: 100, marginLeft: 30}}
      ]},
      {width: 1000, height: 1000, top: 10, left: 5, children: [
        {width: 100, height: 100, top: 50, left: 15},
        {width: 100, height: 100, top: 170, left: 30}
      ]}
    );
  });

  it('should layout node with targeted margin in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', marginTop: 10, marginLeft: 5}, children: [
        {style: {width: 100, height: 100, marginTop: 50, marginLeft: 15, marginBottom: 20}},
        {style: {width: 100, height: 100, marginLeft: 30}}
      ]},
      {width: 1000, height: 1000, top: 10, left: 5, children: [
        {width: 100, height: 100, top: 880, left: 15},
        {width: 100, height: 100, top: 730, left: 30}
      ]}
    );
  });

  it('should layout node with justifyContent: flex-start', function() {
    testLayout(
      {style: {width: 1000, height: 1000, justifyContent: 'flex-start'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 0, left: 0},
        {width: 100, height: 100, top: 100, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: flex-start in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', justifyContent: 'flex-start'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 900, left: 0},
        {width: 100, height: 100, top: 800, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: flex-end', function() {
    testLayout(
      {style: {width: 1000, height: 1000, justifyContent: 'flex-end'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 800, left: 0},
        {width: 100, height: 100, top: 900, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: flex-end in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', justifyContent: 'flex-end'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 100, left: 0},
        {width: 100, height: 100, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: space-between', function() {
    testLayout(
      {style: {width: 1000, height: 1000, justifyContent: 'space-between'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 0, left: 0},
        {width: 100, height: 100, top: 900, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: space-between in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', justifyContent: 'space-between'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 900, left: 0},
        {width: 100, height: 100, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: space-around', function() {
    testLayout(
      {style: {width: 1000, height: 1000, justifyContent: 'space-around'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 200, left: 0},
        {width: 100, height: 100, top: 700, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: space-around in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', justifyContent: 'space-around'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 700, left: 0},
        {width: 100, height: 100, top: 200, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: center', function() {
    testLayout(
      {style: {width: 1000, height: 1000, justifyContent: 'center'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 400, left: 0},
        {width: 100, height: 100, top: 500, left: 0}
      ]}
    );
  });

  it('should layout node with justifyContent: center in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', justifyContent: 'center'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 500, left: 0},
        {width: 100, height: 100, top: 400, left: 0}
      ]}
    );
  });

  it('should layout node with flex override height', function() {
    testLayout(
      {style: {width: 1000, height: 1000}, children: [
        {style: {width: 100, height: 100, flex: 1}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 100, height: 1000, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with alignItems: flex-start', function() {
    testLayout(
      {style: {width: 1000, height: 1000, alignItems: 'flex-start'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 0, left: 0},
        {width: 100, height: 100, top: 100, left: 0}
      ]}
    );
  });

  it('should layout node with alignItems: flex-start in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', alignItems: 'flex-start'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 900, left: 0},
        {width: 100, height: 100, top: 800, left: 0}
      ]}
    );
  });

  it('should layout node with alignItems: center', function() {
    testLayout(
      {style: {width: 1000, height: 1000, alignItems: 'center'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 0, left: 400},
        {width: 100, height: 100, top: 100, left: 450}
      ]}
    );
  });

  it('should layout node with alignItems: center in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', alignItems: 'center'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 900, left: 400},
        {width: 100, height: 100, top: 800, left: 450}
      ]}
    );
  });

  it('should layout node with alignItems: flex-end', function() {
    testLayout(
      {style: {width: 1000, height: 1000, alignItems: 'flex-end'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 0, left: 800},
        {width: 100, height: 100, top: 100, left: 900}
      ]}
    );
  });

  it('should layout node with alignItems: flex-end in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', alignItems: 'flex-end'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 900, left: 800},
        {width: 100, height: 100, top: 800, left: 900}
      ]}
    );
  });

  it('should layout node with alignSelf overrides alignItems', function() {
    testLayout(
      {style: {width: 1000, height: 1000, alignItems: 'flex-end'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100, alignSelf: 'center'}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 0, left: 800},
        {width: 100, height: 100, top: 100, left: 450}
      ]}
    );
  });

  it('should layout node with alignSelf overrides alignItems in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', alignItems: 'flex-end'}, children: [
        {style: {width: 200, height: 100}},
        {style: {width: 100, height: 100, alignSelf: 'center'}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 200, height: 100, top: 900, left: 800},
        {width: 100, height: 100, top: 800, left: 450}
      ]}
    );
  });

  it('should layout node with alignItem: stretch', function() {
    testLayout(
      {style: {width: 1000, height: 1000, alignItems: 'stretch'}, children: [
        {style: {height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 1000, height: 100, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with alignItem: stretch in reverse', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'column-reverse', alignItems: 'stretch'}, children: [
        {style: {height: 100}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 1000, height: 100, top: 900, left: 0}
      ]}
    );
  });

  it('should layout empty node', function() {
    testLayout(
      {style: {}, children: [
        {style: {}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout empty node in reverse', function() {
    testLayout(
      {style: {flexDirection: 'column-reverse'}, children: [
        {style: {}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout child with margin', function() {
    testLayout(
      {style: {}, children: [
        {style: {margin: 5}}
      ]},
      {width: 10, height: 10, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 5, left: 5}
      ]}
    );
  });

  it('should layout child with margin in reverse', function() {
    testLayout(
      {style: {flexDirection: 'column-reverse'}, children: [
        {style: {margin: 5}}
      ]},
      {width: 10, height: 10, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 5, left: 5}
      ]}
    );
  });

  it('should not shrink children if not enough space', function() {
    testLayout(
      {style: {height: 100}, children: [
        {style: {height: 100}},
        {style: {height: 200}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 100, top: 0, left: 0},
        {width: 0, height: 200, top: 100, left: 0}
      ]}
    );
  });

  it('should not shrink children if not enough space in reverse', function() {
    testLayout(
      {style: {height: 100, flexDirection: 'column-reverse'}, children: [
        {style: {height: 100}},
        {style: {height: 200}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 100, top: 0, left: 0},
        {width: 0, height: 200, top: -200, left: 0}
      ]}
    );
  });

  it('should layout for center', function() {
    testLayout(
      {style: {justifyContent: 'center'}},
      {width: 0, height: 0, top: 0, left: 0}
    );
  });

  it('should layout flex-end taking into account margin', function() {
    testLayout(
      {style: {height: 100, justifyContent: 'flex-end'}, children: [
        {style: {marginTop: 10}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 100, left: 0}
      ]}
    );
  });

  it('should layout flex-end taking into account margin in reverse', function() {
    testLayout(
      {style: {height: 100, flexDirection: 'column-reverse', justifyContent: 'flex-end'}, children: [
        {style: {marginTop: 10}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 10, left: 0}
      ]}
    );
  });

  it('should layout alignItems with margin', function() {
    testLayout(
      {style: {}, children: [
        {style: {alignItems: 'flex-end'}, children: [
          {style: {margin: 10}},
          {style: {height: 100}}
        ]}
      ]},
      {width: 20, height: 120, top: 0, left: 0, children: [
        {width: 20, height: 120, top: 0, left: 0, children: [
          {width: 0, height: 0, top: 10, left: 10},
          {width: 0, height: 100, top: 20, left: 20}
        ]}
      ]}
    );
  });

  it('should layout alignItems with margin in reverse', function() {
    testLayout(
      {style: {}, children: [
        {style: {flexDirection: 'column-reverse', alignItems: 'flex-end'}, children: [
          {style: {margin: 10}},
          {style: {height: 100}}
        ]}
      ]},
      {width: 20, height: 120, top: 0, left: 0, children: [
        {width: 20, height: 120, top: 0, left: 0, children: [
          {width: 0, height: 0, top: 110, left: 10},
          {width: 0, height: 100, top: 0, left: 20}
        ]}
      ]}
    );
  });

  it('should layout flex inside of an empty element', function() {
    testLayout(
      {style: {}, children: [
        {style: {flex: 1}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout alignItems stretch and margin', function() {
    testLayout(
      {style: {alignItems: 'stretch'}, children: [
        {style: {marginLeft: 10}}
      ]},
      {width: 10, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 10}
      ]}
    );
  });

  it('should layout alignItems stretch and margin in reverse', function() {
    testLayout(
      {style: {flexDirection: 'column-reverse', alignItems: 'stretch'}, children: [
        {style: {marginLeft: 10}}
      ]},
      {width: 10, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 10}
      ]}
    );
  });

  it('should layout node with padding', function() {
    testLayout(
      {style: {padding: 5}},
      {width: 10, height: 10, top: 0, left: 0}
    );
  });

  it('should layout node with padding and a child', function() {
    testLayout(
      {style: {padding: 5}, children: [
        {style: {}}
      ]},
      {width: 10, height: 10, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 5, left: 5}
      ]}
    );
  });

  it('should layout node with padding and a child with margin', function() {
    testLayout(
      {style: {padding: 5}, children: [
        {style: {margin: 5}}
      ]},
      {width: 20, height: 20, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 10, left: 10}
      ]}
    );
  });

  it('should layout node with padding and stretch', function() {
    testLayout(
      {style: {}, children: [
        {style: {padding: 10, alignSelf: 'stretch'}}
      ]},
      {width: 20, height: 20, top: 0, left: 0, children: [
        {width: 20, height: 20, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with inner & outer padding and stretch', function() {
    testLayout(
      {style: {padding: 50}, children: [
        {style: {padding: 10, alignSelf: 'stretch'}}
      ]},
      {width: 120, height: 120, top: 0, left: 0, children: [
        {width: 20, height: 20, top: 50, left: 50}
      ]}
    );
  });

  it('should layout node with stretch and child with margin', function() {
    testLayout(
      {style: {}, children: [
        {style: {alignSelf: 'stretch'}, children: [
          {style: {margin: 16}}
        ]}
      ]},
      {width: 32, height: 32, top: 0, left: 0, children: [
        {width: 32, height: 32, top: 0, left: 0, children: [
          {width: 0, height: 0, top: 16, left: 16}
        ]}
      ]}
    );
  });

  it('should layout node with top and left', function() {
    testLayout(
      {style: {top: 5, left: 5}},
      {width: 0, height: 0, top: 5, left: 5}
    );
  });

  it('should layout node with height, padding and space-around', function() {
    testLayout(
      {style: {height: 10, paddingTop: 5, justifyContent: 'space-around'}, children: [
        {style: {}}
      ]},
      {width: 0, height: 10, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 7.5, left: 0}
      ]}
    );
  });

  it('should layout node with bottom', function() {
    testLayout(
      {style: {bottom: 5}},
      {width: 0, height: 0, top: -5, left: 0}
    );
  });

  it('should layout node with both top and bottom', function() {
    testLayout(
      {style: {top: 10, bottom: 5}},
      {width: 0, height: 0, top: 10, left: 0}
    );
  });

  it('should layout node with position: absolute', function() {
    testLayout(
      {style: {width: 500, flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {position: 'absolute', width: 50}},
        {style: {flex: 1}}
      ]},
      {width: 500, height: 0, top: 0, left: 0, children: [
        {width: 250, height: 0, top: 0, left: 0},
        {width: 50, height: 0, top: 0, left: 250},
        {width: 250, height: 0, top: 0, left: 250}
      ]}
    );
  });

  it('should layout node with child with position: absolute and margin', function() {
    testLayout(
      {style: {}, children: [
        {style: {marginRight: 15, position: 'absolute'}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with position: absolute, padding and alignSelf: center', function() {
    testLayout(
      {style: {}, children: [
        {style: {paddingRight: 12, alignSelf: 'center', position: 'absolute'}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 12, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should work with height smaller than paddingBottom', function() {
    testLayout(
      {style: {height: 5, paddingBottom: 20}},
      {width: 0, height: 20, top: 0, left: 0}
    );
  });

  it('should work with width smaller than paddingLeft', function() {
    testLayout(
      {style: {width: 5, paddingLeft: 20}},
      {width: 20, height: 0, top: 0, left: 0}
    );
  });

  it('should layout node with specified width and stretch', function() {
    testLayout(
      {style: {}, children: [{
        style: {}, children: [
          {style: {width: 400}}
        ]},
        {style: {width: 200, alignSelf: 'stretch'}}
      ]},
      {width: 400, height: 0, top: 0, left: 0, children: [
        {width: 400, height: 0, top: 0, left: 0, children: [
          {width: 400, height: 0, top: 0, left: 0}
        ]},
        {width: 200, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with padding and child with position absolute', function() {
    testLayout(
      {style: {padding: 5}, children: [
        {style: {position: 'absolute'}}
      ]},
      {width: 10, height: 10, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 5, left: 5}
      ]}
    );
  });

  it('should layout node with position absolute, top and left', function() {
    testLayout(
      {style: {}, children: [
        {style: {height: 100}},
        {style: {position: 'absolute', top: 10, left: 10}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 100, top: 0, left: 0},
        {width: 0, height: 0, top: 10, left: 10}
      ]}
    );
  });

  it('should layout node with padding and child position absolute, left', function() {
    testLayout(
      {style: {padding: 20}, children: [
        {style: {left: 5, position: 'absolute'}}
      ]},
      {width: 40, height: 40, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 20, left: 5}
      ]}
    );
  });

  it('should layout node with position: absolute, top and marginTop', function() {
    testLayout(
      {style: {}, children: [
        {style: {top: 5, marginTop: 5, position: 'absolute'}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 10, left: 0}
      ]}
    );
  });

  it('should layout node with position: absolute, left and marginLeft', function() {
    testLayout(
      {style: {}, children: [
        {style: {left: 5, marginLeft: 5, position: 'absolute'}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 10}
      ]}
    );
  });

  it('should layout node with space-around and child position absolute', function() {
    testLayout(
      {style: {height: 200, justifyContent: 'space-around'}, children: [
        {style: {position: 'absolute'}},
        {style: {}}
      ]},
      {width: 0, height: 200, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 100, left: 0},
        {width: 0, height: 0, top: 100, left: 0}
      ]}
    );
  });

  it('should layout node with space-around and child position absolute in reverse', function() {
    testLayout(
      {style: {height: 200, flexDirection: 'column-reverse', justifyContent: 'space-around'}, children: [
        {style: {position: 'absolute'}},
        {style: {}}
      ]},
      {width: 0, height: 200, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 100, left: 0},
        {width: 0, height: 0, top: 100, left: 0}
      ]}
    );
  });

  it('should layout node with flex and main margin', function() {
    testLayout(
      {style: {width: 700, flexDirection: 'row'}, children: [
        {style: {marginLeft: 5, flex: 1}}
      ]},
      {width: 700, height: 0, top: 0, left: 0, children: [
        {width: 695, height: 0, top: 0, left: 5}
      ]}
    );
  });

  it('should layout node with flex and main margin in rtl', function() {
    testLayout(
      {style: {width: 700, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {marginRight: 5, flex: 1}}
      ]},
      {width: 700, height: 0, top: 0, left: 0, children: [
        {width: 695, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with multiple flex and padding', function() {
    testLayout(
      {style: {width: 700, flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {paddingRight: 5, flex: 1}}
      ]},
      {width: 700, height: 0, top: 0, left: 0, children: [
        {width: 347.5, height: 0, top: 0, left: 0},
        {width: 352.5, height: 0, top: 0, left: 347.5}
      ]}
    );
  });

  it('should layout node with multiple flex and padding in rtl', function() {
    testLayout(
      {style: {width: 700, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {paddingLeft: 5, flex: 1}}
      ]},
      {width: 700, height: 0, top: 0, left: 0, children: [
        {width: 347.5, height: 0, top: 0, left: 352.5},
        {width: 352.5, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with multiple flex and margin', function() {
    testLayout(
      {style: {width: 700, flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {marginLeft: 5, flex: 1}}
      ]},
      {width: 700, height: 0, top: 0, left: 0, children: [
        {width: 347.5, height: 0, top: 0, left: 0},
        {width: 347.5, height: 0, top: 0, left: 352.5}
      ]}
    );
  });

  it('should layout node with multiple flex and margin in rtl', function() {
    testLayout(
      {style: {width: 700, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {marginRight: 5, flex: 1}}
      ]},
      {width: 700, height: 0, top: 0, left: 0, children: [
        {width: 347.5, height: 0, top: 0, left: 352.5},
        {width: 347.5, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with flex and overflow', function() {
    testLayout(
      {style: {height: 300}, children: [
        {style: {height: 600}},
        {style: {flex: 1}}
      ]},
      {width: 0, height: 300, top: 0, left: 0, children: [
        {width: 0, height: 600, top: 0, left: 0},
        {width: 0, height: 0, top: 600, left: 0}
      ]}
    );
  });

  it('should layout node with flex and position absolute', function() {
    testLayout(
      {style: {width: 600, flexDirection: 'row'}, children: [
        {style: {flex: 1, position: 'absolute'}}
      ]},
      {width: 600, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with flex and position absolute in rtl', function() {
    testLayout(
      {style: {width: 600, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1, position: 'absolute'}}
      ]},
      {width: 600, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 600}
      ]}
    );
  });

  it('should layout node with double flex and position absolute', function() {
    testLayout(
      {style: {height: 500}, children: [
        {style: {flex: 1}},
        {style: {flex: 1, position: 'absolute'}}
      ]},
      {width: 0, height: 500, top: 0, left: 0, children: [
        {width: 0, height: 500, top: 0, left: 0},
        {width: 0, height: 0, top: 500, left: 0}
      ]}
    );
  });

  it('should layout node with borderWidth', function() {
    testLayout(
      {style: {borderWidth: 5}},
      {width: 10, height: 10, top: 0, left: 0}
    );
  });

  it('should layout node with borderWidth and position: absolute, top', function() {
    testLayout(
      {style: {borderTopWidth: 1}, children: [
        {style: {top: -1, position: 'absolute'}}
      ]},
      {width: 0, height: 1, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with borderWidth and position: absolute, top. cross axis', function() {
    testLayout(
      {style: {borderWidth: 1}, children: [
        {style: {left: 5, position: 'absolute'}}
      ]},
      {width: 2, height: 2, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 1, left: 6}
      ]}
    );
  });

  it('should correctly take into account min padding for stretch', function() {
    testLayout(
      {style: {width: 50}, children: [
        {style: {marginLeft: 20, padding: 20, alignSelf: 'stretch'}}
      ]},
      {width: 50, height: 40, top: 0, left: 0, children: [
        {width: 40, height: 40, top: 0, left: 20}
      ]}
    );
  });

  it('should layout node with negative width', function() {
    testLayout(
      {style: {width: -31}, children: [
        {style: {borderRightWidth: 5}}
      ]},
      {width: 5, height: 0, top: 0, left: 0, children: [
        {width: 5, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should handle negative margin and min padding correctly', function() {
    testLayout(
      {style: {borderRightWidth: 1, flexDirection: 'row'}, children: [
        {style: {marginRight: -8}}
      ]},
      {width: 1, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should handle negative margin and min padding correctly in rtl', function() {
    testLayout(
      {style: {borderLeftWidth: 1, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {marginLeft: -8}}
      ]},
      {width: 1, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 1}
      ]}
    );
  });

  it('should layout node with just text', function() {
    testLayout(
      {style: {measure: text(texts.small)}},
      {width: textSizes.smallWidth, height: textSizes.smallHeight, top: 0, left: 0}
    );
  });

  it('should layout node with fixed width and custom measure function', function() {
    testLayoutAgainstExpectedOnly(
      {style: {
        measure: measureWithRatio2,
        width: 100
      }},
      {width: 100, height: 200, top: 0, left: 0}
    );
  });

  it('should layout node with fixed height and custom measure function', function() {
    testLayoutAgainstExpectedOnly(
      {style: {
        measure: measureWithRatio2,
        height: 100
      }},
      {width: 200, height: 100, top: 0, left: 0}
    );
  });

  it('should layout node with fixed height and fixed width, ignoring custom measure function', function() {
    testLayoutAgainstExpectedOnly(
      {style: {
        measure: measureWithRatio2,
        width: 100,
        height: 100
      }},
      {width: 100, height: 100, top: 0, left: 0}
    );
  });

  it('should layout node with no fixed dimension and custom measure function', function() {
    testLayoutAgainstExpectedOnly(
      {style: {
        measure: measureWithRatio2,
      }},
      {width: 99999, height: 99999, top: 0, left: 0}
    );
  });

  it('should layout node with nested stacks and custom measure function', function() {
    testLayoutAgainstExpectedOnly(
      {style: {width: 320, flexDirection: 'column'}, children: [
        {style: {measure: measureWithRatio2}},
        {style: {height: 100, flexDirection: 'row', overflow: 'hidden'}, children: [
          {style: {measure: measureWithRatio2}},
          {style: {measure: measureWithRatio2}}
        ]},
      ]},
      {width: 320, height: 740, top: 0, left: 0, children: [
        {width: 320, height: 640, top: 0, left: 0},
        {width: 320, height: 100, top: 640, left: 0, children: [
          {width: 200, height: 100, top: 0, left: 0},
          {width: 200, height: 100, top: 0, left: 200}
        ]},
      ]}
    );
  });

  it('should layout node with text and width', function() {
    testLayout(
      {style: {measure: text(texts.small), width: 10}},
      {width: 10, height: textSizes.smallHeight, top: 0, left: 0}
    );
  });

  it('should layout node with text, padding and margin', function() {
    testLayout(
      {style: {measure: text(texts.big)}},
      {width: textSizes.bigWidth, height: textSizes.smallHeight, top: 0, left: 0}
    );
  });

  it('should layout node with nested alignSelf: stretch', function() {
    testLayout(
      {style: {width: 300}, children: [
        {style: {alignSelf: 'stretch'}, children: [
          {style: {alignSelf: 'stretch'}}
        ]}
      ]},
      {width: 300, height: 0, top: 0, left: 0, children: [
        {width: 300, height: 0, top: 0, left: 0, children: [
          {width: 300, height: 0, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout node with text and flex', function() {
    testLayout(
      {style: {}, children: [
        {style: {width: 500, flexDirection: 'row'}, children: [
          {style: {flex: 1, measure: text(texts.big)}}
        ]}
      ]},
      {width: 500, height: textSizes.smallHeight, top: 0, left: 0, children: [
        {width: 500, height: textSizes.smallHeight, top: 0, left: 0, children: [
          {width: 500, height: textSizes.smallHeight, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout node with text and flex in rtl', function() {
    testLayout(
      {style: {}, children: [
        {style: {width: 500, direction: 'rtl', flexDirection: 'row'}, children: [
          {style: {flex: 1, measure: text(texts.big)}}
        ]}
      ]},
      {width: 500, height: textSizes.smallHeight, top: 0, left: 0, children: [
        {width: 500, height: textSizes.smallHeight, top: 0, left: 0, children: [
          {width: 500, height: textSizes.smallHeight, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout node with text and stretch', function() {
    testLayout(
      {style: {width: 130}, children: [
        {style: {alignSelf: 'stretch', alignItems: 'stretch'}, children: [
          {style: {measure: text(texts.big)}}
        ]}
      ]},
      {width: 130, height: textSizes.bigHeight, top: 0, left: 0, children: [
        {width: 130, height: textSizes.bigHeight, top: 0, left: 0, children: [
          {width: 130, height: textSizes.bigHeight, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout node with text stretch and width', function() {
    testLayout(
      {style: {width: 200}, children: [
        {style: {alignSelf: 'stretch', alignItems: 'stretch'}, children: [
          {style: {width: 130, measure: text(texts.big)}}
        ]}
      ]},
      {width: 200, height: textSizes.bigHeight, top: 0, left: 0, children: [
        {width: 200, height: textSizes.bigHeight, top: 0, left: 0, children: [
          {width: 130, height: textSizes.bigHeight, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout node with text bounded by parent', function() {
    testLayout(
      {style: {width: 100, alignSelf: 'flex-start'}, children: [
        {style: {measure: text(texts.big), alignSelf: 'flex-start'}}
      ]},
      {width: 100, height: textSizes.bigHeight, top: 0, left: 0, children: [
        {width: textSizes.bigMinWidth, height: textSizes.bigHeight, top: 0, left: 0}
      ]}
    );
  });

  it('should layout node with text bounded by grand-parent', function() {
    testLayoutAgainstExpectedOnly(
      {style: {width: 100, padding: 10, alignSelf: 'flex-start'}, children: [
        {style: {margin: 10, alignSelf: 'flex-start'}, children: [
          {style: {measure: text(texts.big)}}
        ]}
      ]},
      {width: 100, height: 40 + textSizes.bigHeight, top: 0, left: 0, children: [
        // In the flexbox engine implementation, min width of text is not supported so we max
        // out at the amount of available space (60)
        {width: Math.min(60, textSizes.bigMinWidth), height: textSizes.bigHeight, top: 20, left: 20, children: [
          {width: textSizes.bigMinWidth, height: textSizes.bigHeight, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout space-between when remaining space is negative', function() {
    testLayout(
      {style: {height: 100, justifyContent: 'space-between'}, children: [
        {style: {height: 900}},
        {style: {}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 900, top: 0, left: 0},
        {width: 0, height: 0, top: 900, left: 0}
      ]}
    );
  });

  it('should layout space-between when remaining space is negative in reverse', function() {
    testLayout(
      {style: {height: 100, flexDirection: 'column-reverse', justifyContent: 'space-between'}, children: [
        {style: {height: 900}},
        {style: {}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 900, top: -800, left: 0},
        {width: 0, height: 0, top: -800, left: 0}
      ]}
    );
  });

  it('should layout flex-end when remaining space is negative', function() {
    testLayout(
      {style: {width: 200, flexDirection: 'row', justifyContent: 'flex-end'}, children: [
        {style: {width: 900}}
      ]},
      {width: 200, height: 0, top: 0, left: 0, children: [
        {width: 900, height: 0, top: 0, left: -700}
      ]}
    );
  });

  it('should layout flex-end when remaining space is negative in rtl', function() {
    testLayout(
      {style: {width: 200, direction: 'rtl', flexDirection: 'row', justifyContent: 'flex-end'}, children: [
        {style: {width: 900}}
      ]},
      {width: 200, height: 0, top: 0, left: 0, children: [
        {width: 900, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout text with flexDirection row', function() {
    testLayout(
      {style: {}, children: [
        {style: {width: 200, flexDirection: 'row'}, children: [
          {style: {margin: 20, measure: text(texts.big)}}
        ]}
      ]},
      {width: 200, height: textSizes.smallHeight + 40, top: 0, left: 0, children: [
        {width: 200, height: textSizes.smallHeight + 40, top: 0, left: 0, children: [
          {width: textSizes.bigWidth, height: textSizes.smallHeight, top: 20, left: 20}
        ]}
      ]}
    );
  });

  it('should layout text with flexDirection row in rtl', function() {
    testLayout(
      {style: { direction: 'rtl' }, children: [
        {style: {width: 200, flexDirection: 'row'}, children: [
          {style: {margin: 20, measure: text(texts.big)}}
        ]}
      ]},
      {width: 200, height: textSizes.smallHeight + 40, top: 0, left: 0, children: [
        {width: 200, height: textSizes.smallHeight + 40, top: 0, left: 0, children: [
          {width: textSizes.bigWidth, height: textSizes.smallHeight, top: 20, left: 8}
        ]}
      ]}
    );
  });

  it('should layout with text and margin', function() {
    testLayout(
      {style: {}, children: [
        {style: {width: 200}, children: [
          {style: {margin: 20, measure: text(texts.big)}}
        ]}
      ]},
      {width: 200, height: textSizes.bigHeight + 40, top: 0, left: 0, children: [
        {width: 200, height: textSizes.bigHeight + 40, top: 0, left: 0, children: [
          {width: 160, height: textSizes.bigHeight, top: 20, left: 20}
        ]}
      ]}
    );
  });

  it('should layout with position absolute, top, left, bottom, right', function() {
    testLayout(
      {style: {width: 100, height: 100}, children: [
        {style: {position: 'absolute', top: 0, left: 0, bottom: 0, right: 0}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 0, left: 0}
      ]}
    );
  });

  it('should layout with arbitrary flex', function() {
    testLayout(
      {style: {width: 100, height: 100, alignSelf: 'flex-start'}, children: [
        {style: {flex: 2.5, alignSelf: 'flex-start'}},
        {style: {flex: 7.5, alignSelf: 'flex-start'}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 25, top: 0, left: 0},
        {width: 0, height: 75, top: 25, left: 0}
      ]}
    );
  });

  it('should layout with arbitrary flex in reverse', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'column-reverse', alignSelf: 'flex-start'}, children: [
        {style: {flex: 2.5, alignSelf: 'flex-start'}},
        {style: {flex: 7.5, alignSelf: 'flex-start'}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 25, top: 75, left: 0},
        {width: 0, height: 75, top: 0, left: 0}
      ]}
    );
  });

  it('should layout with negative flex in reverse', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'column-reverse', alignSelf: 'flex-start'}, children: [
        {style: {flex: -2.5, alignSelf: 'flex-start'}},
        {style: {flex: 0, alignSelf: 'flex-start'}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 100, left: 0},
        {width: 0, height: 0, top: 100, left: 0}
      ]}
    );
  });

  it('should layout with position: absolute and another sibling', function() {
    testLayout(
      {style: {}, children: [
        {style: {width: 50, height: 100}},
        {style: {position: 'absolute', left: 0, right: 0}}
      ]},
      {width: 50, height: 100, top: 0, left: 0, children: [
        {width: 50, height: 100, top: 0, left: 0},
        {width: 50, height: 0, top: 100, left: 0}
      ]}
    );
  });

  it('should calculate height properly with position: absolute top and bottom', function() {
    testLayout(
      {style: {height: 100}, children: [
        {style: {position: 'absolute', top: 0, bottom: 20}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 80, top: 0, left: 0}
      ]}
    );
  });

  it('should layout with complicated position: absolute and justifyContent: center combo', function() {
    testLayout(
      {style: {width: 200, height: 200}, children: [
        {style: {position: 'absolute', justifyContent: 'center', top: 0, left: 0, right: 0, bottom: 0}, children: [
          {style: {width: 100, height: 100}}
        ]}
      ]},
      {width: 200, height: 200, top: 0, left: 0, children: [
        {width: 200, height: 200, top: 0, left: 0, children: [
          {width: 100, height: 100, top: 50, left: 0}
        ]}
      ]}
    );
  });

  it('should calculate top properly with position: absolute bottom', function() {
    testLayout(
      {style: {height: 100}, children: [
        {style: {position: 'absolute', bottom: 0}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 100, left: 0}
      ]}
    );
  });

  it('should calculate left properly with position: absolute right', function() {
    testLayout(
      {style: {width: 100}, children: [
        {style: {position: 'absolute', right: 0}}
      ]},
      {width: 100, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 100}
      ]}
    );
  });

  it('should calculate top properly with position: absolute bottom and height', function() {
    testLayout(
      {style: {height: 100}, children: [
        {style: {height: 10, position: 'absolute', bottom: 0}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 10, top: 90, left: 0}
      ]}
    );
  });

  it('should calculate left properly with position: absolute right and width', function() {
    testLayout(
      {style: {width: 100}, children: [
        {style: {width: 10, position: 'absolute', right: 0}}
      ]},
      {width: 100, height: 0, top: 0, left: 0, children: [
        {width: 10, height: 0, top: 0, left: 90}
      ]}
    );
  });

  it('should calculate top properly with position: absolute right, width, and no parent dimensions', function() {
    testLayout(
      {style: {}, children: [
        {style: {height: 10, position: 'absolute', bottom: 0}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 10, top: -10, left: 0}
      ]}
    );
  });

  it('should calculate left properly with position: absolute right, width, and no parent dimensions', function() {
    testLayout(
      {style: {}, children: [
        {style: {width: 10, position: 'absolute', right: 0}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 10, height: 0, top: 0, left: -10}
      ]}
    );
  });

  it('should layout border bottom inside of justify content space between container', function() {
    testLayout(
      {style: {justifyContent: 'space-between'}, children: [
        {style: {borderBottomWidth: 1}}
      ]},
      {width: 0, height: 1, top: 0, left: 0, children: [
        {width: 0, height: 1, top: 0, left: 0}
      ]}
    );
  });

  it('should layout negative margin top inside of justify content center container', function() {
    testLayout(
      {style: {justifyContent: 'center'}, children: [
        {style: {marginTop: -6}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: -3, left: 0}
      ]}
    );
  });

  it('should layout positive margin top inside of justify content center container', function() {
    testLayout(
      {style: {justifyContent: 'center'}, children: [
        {style: {marginTop: 20}}
      ]},
      {width: 0, height: 20, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 20, left: 0}
      ]}
    );
  });

  it('should layout border bottom and flex end with an empty child', function() {
    testLayout(
      {style: {borderBottomWidth: 5, justifyContent: 'flex-end'}, children: [
        {style: {}}
      ]},
      {width: 0, height: 5, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should layout with children of a contain with left', function() {
    testLayout(
      {style: {width: 800}, children: [
        {style: {left: 5}, children: [
          {style: {}}
        ]}
      ]},
      {width: 800, height: 0, top: 0, left: 0, children: [
        {width: 800, height: 0, top: 0, left: 5, children: [
          {width: 800, height: 0, top: 0, left: 0}
        ]}
      ]}
    );
  });

  // This behavior is very weird. The child has a width of 0 but somehow the
  // parent has a width of 500. Looks like a bug rather than a feature.
  // https://code.google.com/p/chromium/issues/detail?id=441768
  xit('should layout with flex: 0 and a specific width', function() {
    testLayout(
      {style: {flexDirection: 'row'}, children: [
        {style: {width: 500, flex: 0}}
      ]},
      {width: 500, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  xit('should layout with nested padding', function() {
    testLayout(
      {style: {}, children: [
        {style: {}, children: [
          {style: {}}
        ]},
        {style: {padding: 5}}
      ]},
      {width: 10, height: 10, top: 0, left: 0, children: [
        {width: 10, height: 0, top: 0, left: 0, children: [
          {width: 10, height: 0, top: 0, left: 0}
        ]},
        {width: 10, height: 10, top: 0, left: 0}
      ]}
    );
  });

  it('should layout flex-wrap', function() {
    testLayout(
      {style: {flexWrap: 'wrap', flexDirection: 'row', width: 100}, children: [
        {style: {width: 40, height: 10}},
        {style: {width: 40, height: 10}},
        {style: {width: 40, height: 10}}
      ]},
      {width: 100, height: 20, top: 0, left: 0, children: [
        {width: 40, height: 10, top: 0, left: 0},
        {width: 40, height: 10, top: 0, left: 40},
        {width: 40, height: 10, top: 10, left: 0}
      ]}
    );
  });

  it('should layout flex-wrap in rtl', function() {
    testLayout(
      {style: {flexWrap: 'wrap', direction: 'rtl', flexDirection: 'row', width: 100}, children: [
        {style: {width: 40, height: 10}},
        {style: {width: 40, height: 10}},
        {style: {width: 40, height: 10}}
      ]},
      {width: 100, height: 20, top: 0, left: 0, children: [
        {width: 40, height: 10, top: 0, left: 60},
        {width: 40, height: 10, top: 0, left: 20},
        {width: 40, height: 10, top: 10, left: 60}
      ]}
    );
  });

  it('should layout flex wrap with a line bigger than container', function() {
    testLayout(
      {style: {height: 100, flexWrap: 'wrap'}, children: [
        {style: {height: 100}},
        {style: {height: 200}}
      ]},
      {width: 0, height: 100, top: 0, left: 0, children: [
        {width: 0, height: 100, top: 0, left: 0},
        {width: 0, height: 200, top: 0, left: 0}
      ]}
    );
  });

  // The container should be width = 25 because the width of the two children
  // are 20 and 5. It's likely a bug in Chrome
  // https://code.google.com/p/chromium/issues/detail?id=247963#c16
  xit('should layout flex wrap with padding and borders', function() {
    testLayout(
      {style: {height: 100, flexWrap: 'wrap'}, children: [
        {style: {height: 500, paddingRight: 20}},
        {style: {borderLeftWidth: 5}}
      ]},
      {width: 20, height: 100, top: 0, left: 0, children: [
        {width: 20, height: 500, top: 0, left: 0},
        {width: 5, height: 0, top: 0, left: 20}
      ]}
    );
  });


  xit('should layout text with alignItems: stretch', function() {
    testLayout(
      {style: {width: 80, padding: 7, alignItems: 'stretch', measure: text(texts.big)}},
      {width: 80, height: 68, top: 0, left: 0}
    );
  });

  xit('should layout node with text and position absolute', function() {
    testLayout(
      {style: {}, children: [
        {style: {measure: text(texts.big)}}
      ]},
      {width: 0, height: 0, top: 0, left: 0, children: [
        {width: 100, height: textSizes.bigHeight, top: 0, left: 0}
      ]}
    );
  });

  it('should use max bounds', function() {
    testLayout(
      {style: {width: 100, height: 200, maxWidth: 90, maxHeight: 190}},
      {width: 90, height: 190, top: 0, left: 0}
    );
  });

  it('should use min bounds', function() {
    testLayout(
      {style: {width: 100, height: 200, minWidth: 110, minHeight: 210}},
      {width: 110, height: 210, top: 0, left: 0}
    );
  });

  it('should use min bounds over max bounds', function() {
    testLayout(
      {style: {width: 100, height: 200, minWidth: 110, maxWidth: 90, minHeight: 210, maxHeight: 190}},
      {width: 110, height: 210, top: 0, left: 0}
    );
  });

  it('should use min bounds over max bounds and natural width', function() {
    testLayout(
      {style: {width: 100, height: 200, minWidth: 90, maxWidth: 80, minHeight: 190, maxHeight: 180}},
      {width: 90, height: 190, top: 0, left: 0}
    );
  });

  it('should ignore negative min bounds', function() {
    testLayout(
      {style: {width: 100, height: 200, minWidth: -10, minHeight: -20}},
      {width: 100, height: 200, top: 0, left: 0}
    );
  });

  it('should ignore negative max bounds', function() {
    testLayout(
      {style: {width: 100, height: 200, maxWidth: -10, maxHeight: -20}},
      {width: 100, height: 200, top: 0, left: 0}
    );
  });

  it('should use padded size over max bounds', function() {
    testLayout(
      {style: {paddingTop: 15, paddingBottom: 15, paddingLeft: 20, paddingRight: 20, maxWidth: 30, maxHeight: 10}},
      {width: 40, height: 30, top: 0, left: 0}
    );
  });

  it('should use min size over padded size', function() {
    testLayout(
      {style: {paddingTop: 15, paddingBottom: 15, paddingLeft: 20, paddingRight: 20, minWidth: 50, minHeight: 40}},
      {width: 50, height: 40, top: 0, left: 0}
    );
  });

  it('should override flex direction size with min bounds', function() {
    testLayout(
      {style: {width: 300, height: 200, flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {flex: 1, minWidth: 200}},
        {style: {flex: 1}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 50, height: 200, top: 0, left: 0},
        {width: 200, height: 200, top: 0, left: 50},
        {width: 50, height: 200, top: 0, left: 250}
      ]}
    );
  });

  it('should override flex direction size with min bounds in rtl', function() {
    testLayout(
      {style: {width: 300, height: 200, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {flex: 1, minWidth: 200}},
        {style: {flex: 1}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 50, height: 200, top: 0, left: 250},
        {width: 200, height: 200, top: 0, left: 50},
        {width: 50, height: 200, top: 0, left: 0}
      ]}
    );
  });

  it('should not override flex direction size within bounds', function() {
    testLayout(
      {style: {width: 300, height: 200, flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {flex: 1, minWidth: 90, maxWidth: 110}},
        {style: {flex: 1}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 0, left: 0},
        {width: 100, height: 200, top: 0, left: 100},
        {width: 100, height: 200, top: 0, left: 200}
      ]}
    );
  });

  it('should not override flex direction size within bounds in rtl', function() {
    testLayout(
      {style: {width: 300, height: 200, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {flex: 1, minWidth: 90, maxWidth: 110}},
        {style: {flex: 1}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 100, height: 200, top: 0, left: 200},
        {width: 100, height: 200, top: 0, left: 100},
        {width: 100, height: 200, top: 0, left: 0}
      ]}
    );
  });

  it('should override flex direction size with max bounds', function() {
    testLayout(
      {style: {width: 300, height: 200, flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {flex: 1, maxWidth: 60}},
        {style: {flex: 1}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 120, height: 200, top: 0, left: 0},
        {width: 60, height: 200, top: 0, left: 120},
        {width: 120, height: 200, top: 0, left: 180}
      ]}
    );
  });

  it('should override flex direction size with max bounds in rtl', function() {
    testLayout(
      {style: {width: 300, height: 200, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1}},
        {style: {flex: 1, maxWidth: 60}},
        {style: {flex: 1}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 120, height: 200, top: 0, left: 180},
        {width: 60, height: 200, top: 0, left: 120},
        {width: 120, height: 200, top: 0, left: 0}
      ]}
    );
  });

  it('should ignore flex size if fully max bound', function() {
    testLayout(
      {style: {width: 300, height: 200, flexDirection: 'row'}, children: [
        {style: {flex: 1, maxWidth: 60}},
        {style: {flex: 1, maxWidth: 60}},
        {style: {flex: 1, maxWidth: 60}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 60, height: 200, top: 0, left: 0},
        {width: 60, height: 200, top: 0, left: 60},
        {width: 60, height: 200, top: 0, left: 120}
      ]}
    );
  });

  it('should ignore flex size if fully max bound in rtl', function() {
    testLayout(
      {style: {width: 300, height: 200, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1, maxWidth: 60}},
        {style: {flex: 1, maxWidth: 60}},
        {style: {flex: 1, maxWidth: 60}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 60, height: 200, top: 0, left: 240},
        {width: 60, height: 200, top: 0, left: 180},
        {width: 60, height: 200, top: 0, left: 120}
      ]}
    );
  });

  it('should ignore flex size if fully min bound', function() {
    testLayout(
      {style: {width: 300, height: 200, flexDirection: 'row'}, children: [
        {style: {flex: 1, minWidth: 120}},
        {style: {flex: 1, minWidth: 120}},
        {style: {flex: 1, minWidth: 120}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 120, height: 200, top: 0, left: 0},
        {width: 120, height: 200, top: 0, left: 120},
        {width: 120, height: 200, top: 0, left: 240}
      ]}
    );
  });

  it('should ignore flex size if fully min bound in rtl', function() {
    testLayout(
      {style: {width: 300, height: 200, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {flex: 1, minWidth: 120}},
        {style: {flex: 1, minWidth: 120}},
        {style: {flex: 1, minWidth: 120}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 120, height: 200, top: 0, left: 180},
        {width: 120, height: 200, top: 0, left: 60},
        {width: 120, height: 200, top: 0, left: -60}
      ]}
    );
  });

  it('should pre-fill child size within bounds', function() {
    testLayout(
      {style: {width: 300, height: 200}, children: [
        {style: {flex: 1, minWidth: 290, maxWidth: 310}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 300, height: 200, top: 0, left: 0}
      ]}
    );
  });

  it('should pre-fill child size within max bound', function() {
    testLayout(
      {style: {width: 300, height: 200}, children: [
        {style: {flex: 1, maxWidth: 290}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 290, height: 200, top: 0, left: 0}
      ]}
    );
  });

  it('should pre-fill child size within min bounds', function() {
    testLayout(
      {style: {width: 300, height: 200}, children: [
        {style: {flex: 1, minWidth: 310}}
      ]},
      {width: 300, height: 200, top: 0, left: 0, children: [
        {width: 310, height: 200, top: 0, left: 0}
      ]}
    );
  });

  it('should set parents size based on bounded children', function() {
    testLayout(
      {style: {minWidth: 100, maxWidth: 300, minHeight: 500, maxHeight: 700}, children: [
        {style: {width: 200, height: 300}},
        {style: {width: 200, height: 300}}
      ]},
      {width: 200, height: 600, top: 0, left: 0, children: [
        {width: 200, height: 300, top: 0, left: 0},
        {width: 200, height: 300, top: 300, left: 0}
      ]}
    );
  });

  it('should set parents size based on max bounded children', function() {
    testLayout(
      {style: {maxWidth: 100, maxHeight: 500}, children: [
        {style: {width: 200, height: 300}},
        {style: {width: 200, height: 300}}
      ]},
      {width: 100, height: 500, top: 0, left: 0, children: [
        {width: 200, height: 300, top: 0, left: 0},
        {width: 200, height: 300, top: 300, left: 0}
      ]}
    );
  });

  it('should set parents size based on min bounded children', function() {
    testLayout(
      {style: {minWidth: 300, minHeight: 700}, children: [
        {style: {width: 200, height: 300}},
        {style: {width: 200, height: 300}}
      ]},
      {width: 300, height: 700, top: 0, left: 0, children: [
        {width: 200, height: 300, top: 0, left: 0},
        {width: 200, height: 300, top: 300, left: 0}
      ]}
    );
  });

  it('should keep stretched size within bounds', function() {
    testLayout(
      {style: {width: 1000, alignItems: 'stretch'}, children: [
        {style: {height: 100, minHeight: 90, maxHeight: 110, minWidth: 900, maxWidth: 1100}}
      ]},
      {width: 1000, height: 100, top: 0, left: 0, children: [
        {width: 1000, height: 100, top: 0, left: 0}
      ]}
    );
  });

  it('should keep stretched size within max bounds', function() {
    testLayout(
      {style: {width: 1000, alignItems: 'stretch'}, children: [
        {style: {height: 100, maxHeight: 90, maxWidth: 900}}
      ]},
      {width: 1000, height: 90, top: 0, left: 0, children: [
        {width: 900, height: 90, top: 0, left: 0}
      ]}
    );
  });

  it('should keep stretched size within min bounds', function() {
    testLayout(
      {style: {width: 1000, alignItems: 'stretch'}, children: [
        {style: {height: 100, minHeight: 110, minWidth: 1100}}
      ]},
      {width: 1000, height: 110, top: 0, left: 0, children: [
        {width: 1100, height: 110, top: 0, left: 0}
      ]}
    );
  });

  it('should keep cross axis size within min bounds', function() {
    testLayout(
      {style: {width: 1000, flexDirection: 'row'}, children: [
        {style: {height: 100, minHeight: 110, minWidth: 100}}
      ]},
      {width: 1000, height: 110, top: 0, left: 0, children: [
        {width: 100, height: 110, top: 0, left: 0}
      ]}
    );
  });

  it('should keep cross axis size within min bounds in rtl', function() {
    testLayout(
      {style: {width: 1000, direction: 'rtl', flexDirection: 'row'}, children: [
        {style: {height: 100, minHeight: 110, minWidth: 100}}
      ]},
      {width: 1000, height: 110, top: 0, left: 0, children: [
        {width: 100, height: 110, top: 0, left: 900}
      ]}
    );
  });

  it('should layout node with position absolute, top and left and max bounds', function() {
    testLayout(
      {style: {width: 1000, height: 1000}, children: [
        {style: {position: 'absolute', top: 100, left: 100, bottom: 100, right: 100, maxWidth: 500, maxHeight: 600}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 500, height: 600, top: 100, left: 100}
      ]}
    );
  });

  it('should layout node with position absolute, top and left and min bounds', function() {
    testLayout(
      {style: {width: 1000, height: 1000}, children: [
        {style: {position: 'absolute', top: 100, left: 100, bottom: 100, right: 100, minWidth: 900, minHeight: 1000}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 900, height: 1000, top: 100, left: 100}
      ]}
    );
  });

  xit('should layout minHeight with a flex child', function() {
    testLayout(
      {style: {minHeight: 800}, children: [
        {style: {flex: 1}}
      ]},
      {width: 0, height: 800, top: 0, left: 0, children: [
        {width: 0, height: 800, top: 0, left: 0}
      ]}
    );
  });
  
  it('should center flexible item with max size', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'row', justifyContent: 'center'}, children: [
        {style: {flex: 1, maxWidth: 600, height: 1000}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 600, height: 1000, top: 0, left: 200}
      ]}
    );
  });
  
  it('should correctly size flexible items with flex basis and a max width', function() {
    testLayout(
      {style: {width: 1000, height: 1000, flexDirection: 'row'}, children: [
        {style: {flex: 1, width: 100, height: 1000}},
        {style: {flex: 1, width: 100, maxWidth: 200, height: 1000}}
      ]},
      {width: 1000, height: 1000, top: 0, left: 0, children: [
        {width: 800, height: 1000, top: 0, left: 0},
        {width: 200, height: 1000, top: 0, left: 800}
      ]}
    );
  });

  xit('should layout node with a nested sibling child with width', function() {
    testLayout(
      {style: {}, children: [
        {style: {width: 5}},
        {style: {}, children: [
          {style: {}}
        ]}
      ]},
      {width: 5, height: 0, top: 0, left: 0, children: [
        {width: 5, height: 0, top: 0, left: 0},
        {width: 5, height: 0, top: 0, left: 0, children: [
          {width: 5, height: 0, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout absolutely positioned node with absolutely positioned padded parent', function() {
    testLayout(
      {style: {width: 400, height: 400}, children: [
        {style: {position: 'absolute', top: 100, left: 100, right: 100, bottom: 100, padding: 10}, children: [
          {style: {position: 'absolute', top: 10, left: 10, right: 10, bottom: 10}}
        ]}
      ]},
      {width: 400, height: 400, top: 0, left: 0, children: [
        {width: 200, height: 200, top: 100, left: 100, children: [
          {width: 180, height: 180, top: 10, left: 10}
        ]}
      ]}
    );
  });

  it('should layout absolutely positioned node with absolutely positioned padded and bordered parent', function() {
    testLayout(
      {style: {width: 400, height: 400}, children: [
        {style: {position: 'absolute', top: 100, left: 100, right: 100, bottom: 100, padding: 10, borderWidth: 1}, children: [
          {style: {position: 'absolute', top: 10, left: 10, right: 10, bottom: 10}}
        ]}
      ]},
      {width: 400, height: 400, top: 0, left: 0, children: [
        {width: 200, height: 200, top: 100, left: 100, children: [
          {width: 178, height: 178, top: 11, left: 11}
        ]}
      ]}
    );
  });

  it('should layout absolutely positioned node with padded flex 1 parent', function() {
    testLayout(
      {style: {width: 400, height: 400}, children: [
        {style: {flex: 1, padding: 10}, children: [
          {style: {position: 'absolute', top: 10, left: 10, right: 10, bottom: 10}}
        ]}
      ]},
      {width: 400, height: 400, top: 0, left: 0, children: [
        {width: 400, height: 400, top: 0, left: 0, children: [
          {width: 380, height: 380, top: 10, left: 10}
        ]}
      ]}
    );
  });

  it('should layout nested nodes with mixed directions', function() {
    testLayout(
      {style: {width: 200, height: 200, direction: 'rtl'}, children: [
        {style: {flexDirection: 'row'}, children: [
          {style: {width: 50, height: 50}},
          {style: {width: 50, height: 50}}
        ]},
        {style: {direction: 'ltr', flexDirection: 'row'}, children: [
          {style: {width: 50, height: 50}},
          {style: {width: 50, height: 50}}
        ]}
      ]},
      {width: 200, height: 200, top: 0, left: 0, children: [
        {width: 200, height: 50, top: 0, left: 0, children: [
          {width: 50, height: 50, top: 0, left: 150},
          {width: 50, height: 50, top: 0, left: 100}
        ]},
        {width: 200, height: 50, top: 50, left: 0, children: [
          {width: 50, height: 50, top: 0, left: 0},
          {width: 50, height: 50, top: 0, left: 50}
        ]}
      ]}
    );
  });

  it('should correctly space wrapped nodes', function() {
    testLayout(
      {style: {width: 320, height: 200, flexDirection: 'row', justifyContent: 'space-between', flexWrap: 'wrap'}, children: [
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}},
        {style: {width: 100, height: 100}}
      ]},
      {width: 320, height: 200, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 0, left: 0},
        {width: 100, height: 100, top: 0, left: 110},
        {width: 100, height: 100, top: 0, left: 220},
        {width: 100, height: 100, top: 100, left: 0},
        {width: 100, height: 100, top: 100, left: 110},
        {width: 100, height: 100, top: 100, left: 220}
      ]}
    );
  });


  it('should give start/end padding precedence over left/right padding', function() {
    testLayout(
      {style: {width: 200, paddingLeft: 5, paddingStart: 15, paddingRight: 5, paddingEnd: 15}, children: [
        {style: {height: 50}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 170, height: 50, top: 0, left: 15}
      ]}
    );
  });

  it('should give start/end margin precedence over left/right margin', function() {
    testLayout(
      {style: {width: 200}, children: [
        {style: {height: 50, marginLeft: 5, marginStart: 15, marginRight: 5, marginEnd: 15}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 170, height: 50, top: 0, left: 15}
      ]}
    );
  });

  it('should give start/end border precedence over left/right border', function() {
    testLayout(
      {style: {width: 200, borderLeftWidth: 5, borderStartWidth: 15, borderRightWidth: 5, borderEndWidth: 15}, children: [
        {style: {height: 50}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 170, height: 50, top: 0, left: 15}
      ]}
    );
  });

  it('should layout node with correct start/end padding', function() {
    testLayout(
      {style: {width: 200, paddingStart: 15, paddingEnd: 5}, children: [
        {style: {height: 50}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 180, height: 50, top: 0, left: 15}
      ]}
    );
  });

  it('should layout node with correct start/end padding in rtl', function() {
    testLayout(
      {style: {width: 200, direction: 'rtl', paddingStart: 15, paddingEnd: 5}, children: [
        {style: {height: 50}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 180, height: 50, top: 0, left: 5}
      ]}
    );
  });

  it('should layout node with correct start/end margin', function() {
    testLayout(
      {style: {width: 200}, children: [
        {style: {height: 50, marginStart: 15, marginEnd: 5}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 180, height: 50, top: 0, left: 15}
      ]}
    );
  });

  it('should layout node with correct start/end margin in rtl', function() {
    testLayout(
      {style: {width: 200}, children: [
        {style: {height: 50, direction: 'rtl', marginStart: 15, marginEnd: 5}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 180, height: 50, top: 0, left: 5}
      ]}
    );
  });

  it('should layout node with correct start/end border', function() {
    testLayout(
      {style: {width: 200, borderStartWidth: 15, borderEndWidth: 5}, children: [
        {style: {height: 50}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 180, height: 50, top: 0, left: 15}
      ]}
    );
  });

  it('should layout node with correct start/end border in rtl', function() {
    testLayout(
      {style: {width: 200, direction: 'rtl', borderStartWidth: 15, borderEndWidth: 5}, children: [
        {style: {height: 50}}
      ]},
      {width: 200, height: 50, top: 0, left: 0, children: [
        {width: 180, height: 50, top: 0, left: 5}
      ]}
    );
  });

  it('should layout node with a 0 width', function() {
    testLayout(
      {style: {width: 200}, children: [
        {style: {width: 0}}
      ]},
      {width: 200, height: 0, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 0, left: 0}
      ]}
    );
  });

  xit('should stretch a nested child', function() {
    testLayout(
      {children: [
        {children: [{}]},
        {style: {width: 40}}
      ]},
      {width: 40, height: 0, top: 0, left: 0, children: [
        {width: 40, height: 0, top: 0, left: 0, children: [
          {width: 40, height: 0, top: 0, left: 0}
        ]},
        {width: 40, height: 0, top: 0, left: 0}
      ]}
    );
  });

  it('should correctly progagate size contraints from flexible parents', function() {
    testLayoutAgainstExpectedOnly(
      {style:{flexDirection: 'row', alignItems: 'flex-start', width: 100, height: 10}, children: [
        {style: {width: 50, height: 10}},
        {style:{flexDirection: 'column', alignItems: 'flex-start', flex: 1, height: 10}, children: [
          {style: {measure: measureWithMatchParent, flex: 1, height: 10}}
        ]}
      ]},
      {width: 100, height: 10, top: 0, left: 0, children: [
        {width: 50, height: 10, top: 0, left: 0},
        {width: 50, height: 10, top: 0, left:50, children: [
          {width: 50, height: 10, top: 0, left: 0}
        ]},
      ]}
    );
  });

  // https://github.com/facebook/css-layout/issues/127
  it('should layout content of an item which is stretched late', function() {
    testLayout(
      {style: {flexDirection: 'row', alignItems: 'stretch', width: 150}, children: [
          {style: {flexDirection: 'row', marginTop: 10, marginLeft: 10}, children: [
              {style: {flexDirection: 'row'}, children: [
                  {style: {alignSelf: 'center'}}
              ]}
          ]},
          {style: { height: 150}}
      ]},
      {width: 150, height: 150, top: 0, left: 0, children: [
        {width: 0, height: 140, top: 10, left: 10, children: [
          {width: 0, height: 140, top: 0, left: 0, children: [
            {width: 0, height: 0, top: 70, left: 0}
          ]}
        ]},
        {width: 0, height: 150, top: 0, left: 10}
      ]}
    );
  });

  it('should layout items whose positioning is determined by sibling tree branches', function() {
    testLayout(
      {style: {}, children: [
          {style: {}, children: [
            {style: {width: 200, height: 200}}
          ]},
          {style: {marginTop: 10, marginLeft: 10}, children: [
            {style: {}}
          ]}
      ]},
      {width: 200, height: 210, top: 0, left: 0, children: [
        {width: 200, height: 200, top: 0, left: 0, children: [
          {width: 200, height: 200, top: 0, left: 0}
        ]},
        {width: 190, height: 0, top: 210, left: 10, children: [
          {width: 190, height: 0, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should layout child whose cross axis is undefined and whose alignSelf is stretch', function() {
    testLayout(
      {style: {flexDirection: 'row'}, children: [
          {style: {marginTop: 10, marginLeft: 10, alignSelf: 'flex-start'}},
          {style: {width: 1, alignSelf: 'stretch'}},
          {style: {height: 150}}
      ]},
      {width: 11, height: 150, top: 0, left: 0, children: [
        {width: 0, height: 0, top: 10, left: 10},
        {width: 1, height: 150, top: 0, left: 10},
        {width: 0, height: 150, top: 0, left: 11}
      ]}
    );
  });

  it('should center items correctly inside a stretched layout', function() {
    testLayout(
      {style: {flexDirection: 'row'}, children: [
        {style: {}, children: [
          {style: {width: 100, height: 100}}
        ]},
        {style: {width: 100}, children: [
          {style: {flexDirection: 'column', alignItems: 'center'}, children: [
            {style: {width: 50, height: 50}},
          ]},
        ]},
      ]},
      {width: 200, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 0, left: 0, children: [
          {width: 100, height: 100, top: 0, left: 0}
        ]},
        {width: 100, height: 100, top: 0, left: 100,  children: [
          {width: 100, height: 50, top: 0, left: 0, children: [
            {width: 50, height: 50, top: 0, left: 25}
          ]},
        ]},
      ]}
    );
  });
});

describe('Layout flex:-1', function() {
  // Tests for items with flex:-1 in a container with flexDirection:column
  
  it('should not shrink column node when there is space left over', function() {
    testLayout(
      {style: {width: 100, height: 100}, children: [
        {style: {width: 100, flex: -1}, children: [
          {style: {width: 100, height: 25}}
        ]}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 25, top: 0, left: 0, children: [
          {width: 100, height: 25, top: 0, left: 0}
        ]}
      ]}
    );
  });
  
  it('should shrink column node when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100}, children: [
        {style: {width: 100, flex: -1}, children: [
          {style: {width: 100, height: 200}}
        ]}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 0, left: 0, children: [
          {width: 100, height: 200, top: 0, left: 0}
        ]}
      ]}
    );
  });
  
  it('should not shrink column node with siblings when there is space left over', function() {
    testLayout(
      {style: {width: 100, height: 100}, children: [
        {style: {width: 100, height: 25}},
        {style: {width: 100, flex: -1}, children: [
          {style: {width: 100, height: 30}}
        ]},
        {style: {width: 100, height: 15}},
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 25, top: 0, left: 0},
        {width: 100, height: 30, top: 25, left: 0, children: [
          {width: 100, height: 30, top: 0, left: 0}
        ]},
        {width: 100, height: 15, top: 55, left: 0},
      ]}
    );
  });
  
  it('should shrink column node with siblings when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100}, children: [
        {style: {width: 100, height: 25}},
        {style: {width: 100, flex: -1}, children: [
          {style: {width: 100, height: 80}}
        ]},
        {style: {width: 100, height: 15}},
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 25, top: 0, left: 0},
        {width: 100, height: 60, top: 25, left: 0, children: [
          {width: 100, height: 80, top: 0, left: 0}
        ]},
        {width: 100, height: 15, top: 85, left: 0},
      ]}
    );
  });
  
  it('should shrink column nodes proportional to their main size when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100}, children: [
        {style: {width: 100, height: 30, flex: -1}},
        {style: {width: 100, height: 40}},
        {style: {width: 100, height: 50, flex: -1}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 22.5, top: 0, left: 0},
        {width: 100, height: 40, top: 22.5, left: 0},
        {width: 100, height: 37.5, top: 62.5, left: 0}
      ]}
    );
  });
  
  // Tests for items with flex:-1 and overflow:visible in a container with flexDirection:row
  
  it('should not shrink visible row node when there is space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {height: 100, flex: -1}, children: [
          {style: {width: 25, height: 100}}
        ]}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0, children: [
          {width: 25, height: 100, top: 0, left: 0}
        ]}
      ]}
    );
  });
  
  it('should shrink visible row node when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {height: 100, flex: -1}, children: [
          {style: {width: 200, height: 100}}
        ]}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        // width would be 100 if we implemented https://www.w3.org/TR/css-flexbox-1/#min-size-auto and min-width didn't default to 0
        {width: 100, height: 100, top: 0, left: 0, children: [
          {width: 200, height: 100, top: 0, left: 0}
        ]}
      ]}
    );
  });
  
  it('should not shrink visible row node with siblings when there is space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 25, height: 100}},
        {style: {height: 100, flex: -1}, children: [
          {style: {width: 30, height: 100}}
        ]},
        {style: {width: 15, height: 100}},
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0},
        {width: 30, height: 100, top: 0, left: 25, children: [
          {width: 30, height: 100, top: 0, left: 0}
        ]},
        {width: 15, height: 100, top: 0, left: 55},
      ]}
    );
  });
  
  it('should shrink visible row node with siblings when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 25, height: 100}},
        {style: {height: 100, flex: -1}, children: [
          {style: {width: 80, height: 100}}
        ]},
        {style: {width: 15, height: 100}},
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0},
        // width would be 80 if we implemented https://www.w3.org/TR/css-flexbox-1/#min-size-auto and min-width didn't default to 0
        {width: 60, height: 100, top: 0, left: 25, children: [
          {width: 80, height: 100, top: 0, left: 0}
        ]},
        {width: 15, height: 100, top: 0, left: 85},
      ]}
    );
  });
  
  it('should shrink visible row nodes when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 30, height: 100, flex: -1}},
        {style: {width: 40, height: 100}},
        {style: {width: 50, height: 100, flex: -1}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        // width would be 30 if we implemented https://www.w3.org/TR/css-flexbox-1/#min-size-auto and min-width didn't default to 0
        {width: 22.5, height: 100, top: 0, left: 0},
        {width: 40, height: 100, top: 0, left: 22.5},
        // width would be 50 if we implemented https://www.w3.org/TR/css-flexbox-1/#min-size-auto and min-width didn't default to 0
        {width: 37.5, height: 100, top: 0, left: 62.5}
      ]}
    );
  });
  
  // Tests for items with flex:-1 and overflow:hidden in a container with flexDirection:row
  
  it('should not shrink hidden row node when there is space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {height: 100, flex: -1, overflow: 'hidden'}, children: [
          {style: {width: 25, height: 100}}
        ]}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0, children: [
          {width: 25, height: 100, top: 0, left: 0}
        ]}
      ]}
    );
  });

  it('should shrink hidden row node when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {height: 100, flex: -1, overflow: 'hidden'}, children: [
          {style: {width: 200, height: 100}}
        ]}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 100, height: 100, top: 0, left: 0, children: [
          {width: 200, height: 100, top: 0, left: 0}
        ]}
      ]}
    );
  });
  
  it('should not shrink hidden row node with siblings when there is space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 25, height: 100}},
        {style: {height: 100, flex: -1, overflow: 'hidden'}, children: [
          {style: {width: 30, height: 100}}
        ]},
        {style: {width: 15, height: 100}},
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0},
        {width: 30, height: 100, top: 0, left: 25, children: [
          {width: 30, height: 100, top: 0, left: 0}
        ]},
        {width: 15, height: 100, top: 0, left: 55},
      ]}
    );
  });
  
  it('should shrink hidden row node with siblings when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 25, height: 100}},
        {style: {height: 100, flex: -1, overflow: 'hidden'}, children: [
          {style: {width: 80, height: 100}}
        ]},
        {style: {width: 15, height: 100}},
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0},
        {width: 60, height: 100, top: 0, left: 25, children: [
          {width: 80, height: 100, top: 0, left: 0}
        ]},
        {width: 15, height: 100, top: 0, left: 85},
      ]}
    );
  });
  
  it('should shrink hidden row nodes proportional to their main size when there is not any space left over', function() {
    testLayout(
      {style: {width: 100, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 30, height: 100, flex: -1, overflow: 'hidden'}},
        {style: {width: 40, height: 100}},
        {style: {width: 50, height: 100, flex: -1, overflow: 'hidden'}}
      ]},
      {width: 100, height: 100, top: 0, left: 0, children: [
        {width: 22.5, height: 100, top: 0, left: 0},
        {width: 40, height: 100, top: 0, left: 22.5},
        {width: 37.5, height: 100, top: 0, left: 62.5}
      ]}
    );
  });
  
  // Tests for items with flex:-1 containing a text node
  
  it('should not shrink text node with siblings when there is space left over', function() {
    testLayoutAgainstExpectedOnly(
      {style: {width: 213, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 25, height: 100}},
        {style: {height: 100, flex: -1, flexDirection: 'row', alignItems: 'flex-start'}, children: [
          {style: {measure: text(texts.big)}}
        ]},
        {style: {width: 15, height: 100}},
      ]},
      {width: 213, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0},
        {width: textSizes.bigWidth, height: 100, top: 0, left: 25, children: [
          {width: textSizes.bigWidth, height: textSizes.smallHeight, top: 0, left: 0}
        ]},
        {width: 15, height: 100, top: 0, left: 25 + textSizes.bigWidth},
      ]}
    );
  });
  
  it('should shrink text node with siblings when there is not any space left over', function() {
    testLayout(
      {style: {width: 140, height: 100, flexDirection: 'row'}, children: [
        {style: {width: 25, height: 100}},
        {style: {height: 100, flex: -1, flexDirection: 'row', alignItems: 'flex-start'}, children: [
          {style: {flex: -1, measure: text(texts.big)}}
        ]},
        {style: {width: 15, height: 100}},
      ]},
      {width: 140, height: 100, top: 0, left: 0, children: [
        {width: 25, height: 100, top: 0, left: 0},
        {width: textSizes.bigMinWidth, height: 100, top: 0, left: 25, children: [
          {width: textSizes.bigMinWidth, height: textSizes.bigHeight, top: 0, left: 0}
        ]},
        {width: 15, height: 100, top: 0, left: 25 + textSizes.bigMinWidth},
      ]}
    );
  });
});

describe('Layout alignContent', function() {

  it('should layout with alignContent: stretch, and alignItems: flex-start', function() {
    testLayout(
      {style: {width: 300, height: 380, flexDirection: 'row', flexWrap: 'wrap', alignContent: 'stretch', alignItems: 'flex-start'},
       children: [
         /* 0 */ {style: {width: 50, height: 50, margin: 10}},
         /* 1 */ {style: {width: 50, height: 50, margin: 10}},
         /* 2 */ {style: {width: 50, height: 50, margin: 10}},
         /* 3 */ {style: {width: 50, height: 50, margin: 10}},
         /* 4 */ {style: {width: 50, height: 100, margin: 10}},
         /* 5 */ {style: {width: 50, height: 50, margin: 10, alignSelf: 'flex-start'}},
         /* 6 */ {style: {width: 50, height: 50, margin: 10}},
         /* 7 */ {style: {width: 50, height: 100, margin: 10}},
         /* 8 */ {style: {width: 50, height: 50, margin: 10}},
         /* 9 */ {style: {width: 50, height: 50, margin: 10}},
         /* 10 */ {style: {width: 50, height: 50, margin: 10, alignSelf: 'flex-start' }},
         /* 11 */ {style: {width: 50, height: 50, margin: 10}},
         /* 12 */ {style: {width: 50, height: 50, margin: 10}},
         /* 13 */ {style: {width: 50, height: 50, margin: 10, alignSelf: 'flex-start'}},
         /* 14 */ {style: {width: 50, height: 50, margin: 10}}
       ]
      },
      {width: 300, height: 380, top: 0, left: 0, children: [
        {width: 50, height: 50, top: 10, left: 10},
        {width: 50, height: 50, top: 10, left: 80},
        {width: 50, height: 50, top: 10, left: 150},
        {width: 50, height: 50, top: 10, left: 220},
        {width: 50, height: 100, top: 92.5, left: 10},
        {width: 50, height: 50, top: 92.5, left: 80},
        {width: 50, height: 50, top: 92.5, left: 150},
        {width: 50, height: 100, top: 92.5, left: 220},
        {width: 50, height: 50, top: 225, left: 10},
        {width: 50, height: 50, top: 225, left: 80},
        {width: 50, height: 50, top: 225, left: 150},
        {width: 50, height: 50, top: 225, left: 220},
        {width: 50, height: 50, top: 307.5, left: 10},
        {width: 50, height: 50, top: 307.5, left: 80},
        {width: 50, height: 50, top: 307.5, left: 150}
      ]}
    );
  });


  function testAlignContent(alignContent, alignItems) {
    it('should layout with alignContent: ' + alignContent + ', and alignItems: ' + alignItems, function() {
      testLayoutAgainstDomOnly(
        {style: {width: 300, height: 380, flexDirection: 'row', flexWrap: 'wrap', alignContent: alignContent, alignItems: alignItems},
         children: [
           /* 0 */ {style: {width: 50, height: 50, margin: 10}},
           /* 1 */ {style: {width: 50, height: 50, margin: 10}},
           /* 2 */ {style: {width: 50, height: 50, margin: 10}},
           /* 3 */ {style: {width: 50, height: 50, margin: 10}},
           /* 4 */ {style: {width: 50, height: 100, margin: 10}},
           /* 5 */ {style: {width: 50, height: 50, margin: 10, alignSelf: 'flex-start'}},
           /* 6 */ {style: {width: 50, height: 50, margin: 10}},
           /* 7 */ {style: {width: 50, height: 100, margin: 10}},
           /* 8 */ {style: {width: 50, height: 50, margin: 10}},
           /* 9 */ {style: {width: 50, height: 50, margin: 10}},
           /* 10 */ {style: {width: 50, height: 50, margin: 10, alignSelf: 'flex-start' }},
           /* 11 */ {style: {width: 50, height: 50, margin: 10}},
           /* 12 */ {style: {width: 50, height: 50, margin: 10}},
           /* 13 */ {style: {width: 50, height: 50, margin: 10, alignSelf: 'flex-start'}},
           /* 14 */ {style: {width: 50, height: 50, margin: 10}}
         ]
        }
      );
    });
  }
  testAlignContent('stretch', 'center');
  testAlignContent('stretch', 'flex-end');
  testAlignContent('stretch', 'stretch');

  testAlignContent('flex-start', 'flex-start');
  testAlignContent('flex-start', 'center');
  testAlignContent('flex-start', 'flex-end');
  testAlignContent('flex-start', 'stretch');

  testAlignContent('center', 'flex-start');
  testAlignContent('center', 'center');
  testAlignContent('center', 'flex-end');
  testAlignContent('center', 'stretch');

  testAlignContent('flex-end', 'flex-start');
  testAlignContent('flex-end', 'center');
  testAlignContent('flex-end', 'flex-end');
  testAlignContent('flex-end', 'stretch');
});