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db3d20b7b7009ee01b1d5a6ff113d1db8315509c
yoga/java/tests/com/facebook/yoga/YGFlexTest.java
Lukas Wöhrl ca2c607f90 The total flex factores need to be a minimum of 1 if any 
Summary:
The only thing I found in the spec for this change is the following. Not exactly sure if this is the thing this PR is about:

> For each flex item, subtract its outer flex base size from its max-content contribution size. If that result is not zero, divide it by (if the result was positive) its **flex grow factor floored at 1** or (if the result was negative) by its scaled flex shrink factor, having **floored the flex shrink factor at 1**. This is the item’s max-content flex fraction.

But at least it seems a required change.

Fixes facebook/yoga#566
Closes https://github.com/facebook/yoga/pull/572

Differential Revision: D5264388

Pulled By: emilsjolander

fbshipit-source-id: 0004d1c3b9bad070a98cd6766c1adc06a54475f8
2017-06-16 07:46:06 -07:00

492 lines
19 KiB
Java
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/**
* Copyright (c) 2014-present, 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.
*/
// @Generated by gentest/gentest.rb from gentest/fixtures/YGFlexTest.html
package com.facebook.yoga;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class YGFlexTest {
@Test
public void test_flex_basis_flex_grow_column() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setWidth(100f);
root.setHeight(100f);
final YogaNode root_child0 = new YogaNode(config);
root_child0.setFlexGrow(1f);
root_child0.setFlexBasis(50f);
root.addChildAt(root_child0, 0);
final YogaNode root_child1 = new YogaNode(config);
root_child1.setFlexGrow(1f);
root.addChildAt(root_child1, 1);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(75f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(75f, root_child1.getLayoutY(), 0.0f);
assertEquals(100f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(25f, root_child1.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(75f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(75f, root_child1.getLayoutY(), 0.0f);
assertEquals(100f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(25f, root_child1.getLayoutHeight(), 0.0f);
}
@Test
public void test_flex_basis_flex_grow_row() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setFlexDirection(YogaFlexDirection.ROW);
root.setWidth(100f);
root.setHeight(100f);
final YogaNode root_child0 = new YogaNode(config);
root_child0.setFlexGrow(1f);
root_child0.setFlexBasis(50f);
root.addChildAt(root_child0, 0);
final YogaNode root_child1 = new YogaNode(config);
root_child1.setFlexGrow(1f);
root.addChildAt(root_child1, 1);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(75f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(75f, root_child1.getLayoutX(), 0.0f);
assertEquals(0f, root_child1.getLayoutY(), 0.0f);
assertEquals(25f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child1.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(25f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(75f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(0f, root_child1.getLayoutY(), 0.0f);
assertEquals(25f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child1.getLayoutHeight(), 0.0f);
}
@Test
public void test_flex_basis_flex_shrink_column() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setWidth(100f);
root.setHeight(100f);
final YogaNode root_child0 = new YogaNode(config);
root_child0.setFlexShrink(1f);
root_child0.setFlexBasis(100f);
root.addChildAt(root_child0, 0);
final YogaNode root_child1 = new YogaNode(config);
root_child1.setFlexBasis(50f);
root.addChildAt(root_child1, 1);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(50f, root_child1.getLayoutY(), 0.0f);
assertEquals(100f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child1.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(50f, root_child1.getLayoutY(), 0.0f);
assertEquals(100f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child1.getLayoutHeight(), 0.0f);
}
@Test
public void test_flex_basis_flex_shrink_row() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setFlexDirection(YogaFlexDirection.ROW);
root.setWidth(100f);
root.setHeight(100f);
final YogaNode root_child0 = new YogaNode(config);
root_child0.setFlexShrink(1f);
root_child0.setFlexBasis(100f);
root.addChildAt(root_child0, 0);
final YogaNode root_child1 = new YogaNode(config);
root_child1.setFlexBasis(50f);
root.addChildAt(root_child1, 1);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(50f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(50f, root_child1.getLayoutX(), 0.0f);
assertEquals(0f, root_child1.getLayoutY(), 0.0f);
assertEquals(50f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child1.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(50f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(50f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(0f, root_child1.getLayoutY(), 0.0f);
assertEquals(50f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(100f, root_child1.getLayoutHeight(), 0.0f);
}
@Test
public void test_flex_shrink_to_zero() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setHeight(75f);
final YogaNode root_child0 = new YogaNode(config);
root_child0.setWidth(50f);
root_child0.setHeight(50f);
root.addChildAt(root_child0, 0);
final YogaNode root_child1 = new YogaNode(config);
root_child1.setFlexShrink(1f);
root_child1.setWidth(50f);
root_child1.setHeight(50f);
root.addChildAt(root_child1, 1);
final YogaNode root_child2 = new YogaNode(config);
root_child2.setWidth(50f);
root_child2.setHeight(50f);
root.addChildAt(root_child2, 2);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(50f, root.getLayoutWidth(), 0.0f);
assertEquals(75f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(50f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(50f, root_child1.getLayoutY(), 0.0f);
assertEquals(50f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(0f, root_child1.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child2.getLayoutX(), 0.0f);
assertEquals(50f, root_child2.getLayoutY(), 0.0f);
assertEquals(50f, root_child2.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child2.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(50f, root.getLayoutWidth(), 0.0f);
assertEquals(75f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(50f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(50f, root_child1.getLayoutY(), 0.0f);
assertEquals(50f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(0f, root_child1.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child2.getLayoutX(), 0.0f);
assertEquals(50f, root_child2.getLayoutY(), 0.0f);
assertEquals(50f, root_child2.getLayoutWidth(), 0.0f);
assertEquals(50f, root_child2.getLayoutHeight(), 0.0f);
}
@Test
public void test_flex_basis_overrides_main_size() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setWidth(100f);
root.setHeight(100f);
final YogaNode root_child0 = new YogaNode(config);
root_child0.setFlexGrow(1f);
root_child0.setFlexBasis(50f);
root_child0.setHeight(20f);
root.addChildAt(root_child0, 0);
final YogaNode root_child1 = new YogaNode(config);
root_child1.setFlexGrow(1f);
root_child1.setHeight(10f);
root.addChildAt(root_child1, 1);
final YogaNode root_child2 = new YogaNode(config);
root_child2.setFlexGrow(1f);
root_child2.setHeight(10f);
root.addChildAt(root_child2, 2);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(60f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(60f, root_child1.getLayoutY(), 0.0f);
assertEquals(100f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(20f, root_child1.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child2.getLayoutX(), 0.0f);
assertEquals(80f, root_child2.getLayoutY(), 0.0f);
assertEquals(100f, root_child2.getLayoutWidth(), 0.0f);
assertEquals(20f, root_child2.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(60f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(60f, root_child1.getLayoutY(), 0.0f);
assertEquals(100f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(20f, root_child1.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child2.getLayoutX(), 0.0f);
assertEquals(80f, root_child2.getLayoutY(), 0.0f);
assertEquals(100f, root_child2.getLayoutWidth(), 0.0f);
assertEquals(20f, root_child2.getLayoutHeight(), 0.0f);
}
@Test
public void test_flex_grow_shrink_at_most() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setWidth(100f);
root.setHeight(100f);
final YogaNode root_child0 = new YogaNode(config);
root.addChildAt(root_child0, 0);
final YogaNode root_child0_child0 = new YogaNode(config);
root_child0_child0.setFlexGrow(1f);
root_child0_child0.setFlexShrink(1f);
root_child0.addChildAt(root_child0_child0, 0);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(0f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0_child0.getLayoutWidth(), 0.0f);
assertEquals(0f, root_child0_child0.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(100f, root.getLayoutWidth(), 0.0f);
assertEquals(100f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(0f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0_child0.getLayoutY(), 0.0f);
assertEquals(100f, root_child0_child0.getLayoutWidth(), 0.0f);
assertEquals(0f, root_child0_child0.getLayoutHeight(), 0.0f);
}
@Test
public void test_flex_grow_less_than_factor_one() {
YogaConfig config = new YogaConfig();
final YogaNode root = new YogaNode(config);
root.setWidth(200f);
root.setHeight(500f);
final YogaNode root_child0 = new YogaNode(config);
root_child0.setFlexGrow(0.2f);
root_child0.setFlexBasis(40f);
root.addChildAt(root_child0, 0);
final YogaNode root_child1 = new YogaNode(config);
root_child1.setFlexGrow(0.2f);
root.addChildAt(root_child1, 1);
final YogaNode root_child2 = new YogaNode(config);
root_child2.setFlexGrow(0.4f);
root.addChildAt(root_child2, 2);
root.setDirection(YogaDirection.LTR);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(200f, root.getLayoutWidth(), 0.0f);
assertEquals(500f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(200f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(132f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(132f, root_child1.getLayoutY(), 0.0f);
assertEquals(200f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(92f, root_child1.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child2.getLayoutX(), 0.0f);
assertEquals(224f, root_child2.getLayoutY(), 0.0f);
assertEquals(200f, root_child2.getLayoutWidth(), 0.0f);
assertEquals(184f, root_child2.getLayoutHeight(), 0.0f);
root.setDirection(YogaDirection.RTL);
root.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
assertEquals(0f, root.getLayoutX(), 0.0f);
assertEquals(0f, root.getLayoutY(), 0.0f);
assertEquals(200f, root.getLayoutWidth(), 0.0f);
assertEquals(500f, root.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child0.getLayoutX(), 0.0f);
assertEquals(0f, root_child0.getLayoutY(), 0.0f);
assertEquals(200f, root_child0.getLayoutWidth(), 0.0f);
assertEquals(132f, root_child0.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child1.getLayoutX(), 0.0f);
assertEquals(132f, root_child1.getLayoutY(), 0.0f);
assertEquals(200f, root_child1.getLayoutWidth(), 0.0f);
assertEquals(92f, root_child1.getLayoutHeight(), 0.0f);
assertEquals(0f, root_child2.getLayoutX(), 0.0f);
assertEquals(224f, root_child2.getLayoutY(), 0.0f);
assertEquals(200f, root_child2.getLayoutWidth(), 0.0f);
assertEquals(184f, root_child2.getLayoutHeight(), 0.0f);
}
}
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