yoga/tests/CSSLayoutFlexWrapTest.cpp

/**
 * 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.sh with the following input
 *
 * <div id="wrap_column" style="height: 100px; flex-wrap: wrap">
 *   <div style="height: 30px; width: 30px;"></div>
 *   <div style="height: 30px; width: 30px;"></div>
 *   <div style="height: 30px; width: 30px;"></div>
 *   <div style="height: 30px; width: 30px;"></div>
 * </div>
 *
 * <div id="wrap_row" style="width: 100px; flex-direction: row; flex-wrap: wrap">
 *   <div style="height: 30px; width: 30px;"></div>
 *   <div style="height: 30px; width: 30px;"></div>
 *   <div style="height: 30px; width: 30px;"></div>
 *   <div style="height: 30px; width: 30px;"></div>
 * </div>
 *
 */

// These tests were modified after generation due to both safari and chrome not abiding
// by the specification. The undefined dimension of a parent should be defined by the total size
// of their children in that dimension.
// See diagram under flex-wrap header https://www.w3.org/TR/css-flexbox-1/

#include <CSSLayout/CSSLayout.h>
#include <gtest/gtest.h>

TEST(CSSLayoutTest, wrap_column) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetFlexWrap(root, CSSWrapTypeWrap);
  CSSNodeStyleSetHeight(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child0, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child0, 30);
  CSSNodeStyleSetHeight(root_child0, 30);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child1, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child1, 30);
  CSSNodeStyleSetHeight(root_child1, 30);
  CSSNodeInsertChild(root, root_child1, 1);

  const CSSNodeRef root_child2 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child2, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child2, 30);
  CSSNodeStyleSetHeight(root_child2, 30);
  CSSNodeInsertChild(root, root_child2, 2);

  const CSSNodeRef root_child3 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child3, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child3, 30);
  CSSNodeStyleSetHeight(root_child3, 30);
  CSSNodeInsertChild(root, root_child3, 3);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root));
  ASSERT_EQ(60, CSSNodeLayoutGetWidth(root));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(30, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child1));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child2));
  ASSERT_EQ(60, CSSNodeLayoutGetTop(root_child2));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child2));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child2));

  ASSERT_EQ(30, CSSNodeLayoutGetLeft(root_child3));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child3));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child3));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child3));
}

TEST(CSSLayoutTest, wrap_row) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetFlexDirection(root, CSSFlexDirectionRow);
  CSSNodeStyleSetFlexWrap(root, CSSWrapTypeWrap);
  CSSNodeStyleSetWidth(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child0, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child0, 30);
  CSSNodeStyleSetHeight(root_child0, 30);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child1, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child1, 30);
  CSSNodeStyleSetHeight(root_child1, 30);
  CSSNodeInsertChild(root, root_child1, 1);

  const CSSNodeRef root_child2 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child2, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child2, 30);
  CSSNodeStyleSetHeight(root_child2, 30);
  CSSNodeInsertChild(root, root_child2, 2);

  const CSSNodeRef root_child3 = CSSNodeNew();
  CSSNodeStyleSetAlignSelf(root_child3, CSSAlignStretch);
  CSSNodeStyleSetWidth(root_child3, 30);
  CSSNodeStyleSetHeight(root_child3, 30);
  CSSNodeInsertChild(root, root_child3, 3);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root));
  ASSERT_EQ(60, CSSNodeLayoutGetHeight(root));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(30, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child1));

  ASSERT_EQ(60, CSSNodeLayoutGetLeft(root_child2));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child2));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child2));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child2));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child3));
  ASSERT_EQ(30, CSSNodeLayoutGetTop(root_child3));
  ASSERT_EQ(30, CSSNodeLayoutGetWidth(root_child3));
  ASSERT_EQ(30, CSSNodeLayoutGetHeight(root_child3));
}