yoga/tests/YGRelayoutTest.cpp

/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

#include <gtest/gtest.h>
#include <yoga/Yoga.h>

TEST(YogaTest, dont_cache_computed_flex_basis_between_layouts) {
  YGConfigRef config = YGConfigNew();
  YGConfigSetExperimentalFeatureEnabled(
      config, YGExperimentalFeatureWebFlexBasis, true);

  YGNodeRef root = YGNodeNewWithConfig(config);
  YGNodeStyleSetHeightPercent(root, 100);
  YGNodeStyleSetWidthPercent(root, 100);

  YGNodeRef root_child0 = YGNodeNewWithConfig(config);
  YGNodeStyleSetFlexBasisPercent(root_child0, 100);
  YGNodeInsertChild(root, root_child0, 0);

  YGNodeCalculateLayout(root, 100, YGUndefined, YGDirectionLTR);
  YGNodeCalculateLayout(root, 100, 100, YGDirectionLTR);

  ASSERT_FLOAT_EQ(100, YGNodeLayoutGetHeight(root_child0));

  YGNodeFreeRecursive(root);

  YGConfigFree(config);
}

TEST(YogaTest, recalculate_resolvedDimonsion_onchange) {
  YGNodeRef root = YGNodeNew();

  YGNodeRef root_child0 = YGNodeNew();
  YGNodeStyleSetMinHeight(root_child0, 10);
  YGNodeStyleSetMaxHeight(root_child0, 10);
  YGNodeInsertChild(root, root_child0, 0);

  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
  ASSERT_FLOAT_EQ(10, YGNodeLayoutGetHeight(root_child0));

  YGNodeStyleSetMinHeight(root_child0, YGUndefined);
  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);

  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetHeight(root_child0));

  YGNodeFreeRecursive(root);
}

TEST(YogaTest, relayout_containing_block_size_changes) {
  YGConfigRef config = YGConfigNew();

  YGNodeRef root = YGNodeNewWithConfig(config);
  YGNodeStyleSetPositionType(root, YGPositionTypeAbsolute);

  YGNodeRef root_child0 = YGNodeNewWithConfig(config);
  YGNodeStyleSetPositionType(root_child0, YGPositionTypeRelative);
  YGNodeStyleSetMargin(root_child0, YGEdgeLeft, 4);
  YGNodeStyleSetMargin(root_child0, YGEdgeTop, 5);
  YGNodeStyleSetMargin(root_child0, YGEdgeRight, 9);
  YGNodeStyleSetMargin(root_child0, YGEdgeBottom, 1);
  YGNodeStyleSetPadding(root_child0, YGEdgeLeft, 2);
  YGNodeStyleSetPadding(root_child0, YGEdgeTop, 9);
  YGNodeStyleSetPadding(root_child0, YGEdgeRight, 11);
  YGNodeStyleSetPadding(root_child0, YGEdgeBottom, 13);
  YGNodeStyleSetBorder(root_child0, YGEdgeLeft, 5);
  YGNodeStyleSetBorder(root_child0, YGEdgeTop, 6);
  YGNodeStyleSetBorder(root_child0, YGEdgeRight, 7);
  YGNodeStyleSetBorder(root_child0, YGEdgeBottom, 8);
  YGNodeStyleSetWidth(root_child0, 500);
  YGNodeStyleSetHeight(root_child0, 500);
  YGNodeInsertChild(root, root_child0, 0);

  YGNodeRef root_child0_child0 = YGNodeNewWithConfig(config);
  YGNodeStyleSetPositionType(root_child0_child0, YGPositionTypeStatic);
  YGNodeStyleSetMargin(root_child0_child0, YGEdgeLeft, 8);
  YGNodeStyleSetMargin(root_child0_child0, YGEdgeTop, 6);
  YGNodeStyleSetMargin(root_child0_child0, YGEdgeRight, 3);
  YGNodeStyleSetMargin(root_child0_child0, YGEdgeBottom, 9);
  YGNodeStyleSetPadding(root_child0_child0, YGEdgeLeft, 1);
  YGNodeStyleSetPadding(root_child0_child0, YGEdgeTop, 7);
  YGNodeStyleSetPadding(root_child0_child0, YGEdgeRight, 9);
  YGNodeStyleSetPadding(root_child0_child0, YGEdgeBottom, 4);
  YGNodeStyleSetBorder(root_child0_child0, YGEdgeLeft, 8);
  YGNodeStyleSetBorder(root_child0_child0, YGEdgeTop, 10);
  YGNodeStyleSetBorder(root_child0_child0, YGEdgeRight, 2);
  YGNodeStyleSetBorder(root_child0_child0, YGEdgeBottom, 1);
  YGNodeStyleSetWidth(root_child0_child0, 200);
  YGNodeStyleSetHeight(root_child0_child0, 200);
  YGNodeInsertChild(root_child0, root_child0_child0, 0);

  YGNodeRef root_child0_child0_child0 = YGNodeNewWithConfig(config);
  YGNodeStyleSetPositionType(root_child0_child0_child0, YGPositionTypeAbsolute);
  YGNodeStyleSetPosition(root_child0_child0_child0, YGEdgeLeft, 2);
  YGNodeStyleSetPosition(root_child0_child0_child0, YGEdgeRight, 12);
  YGNodeStyleSetMargin(root_child0_child0_child0, YGEdgeLeft, 9);
  YGNodeStyleSetMargin(root_child0_child0_child0, YGEdgeTop, 12);
  YGNodeStyleSetMargin(root_child0_child0_child0, YGEdgeRight, 4);
  YGNodeStyleSetMargin(root_child0_child0_child0, YGEdgeBottom, 7);
  YGNodeStyleSetPadding(root_child0_child0_child0, YGEdgeLeft, 5);
  YGNodeStyleSetPadding(root_child0_child0_child0, YGEdgeTop, 3);
  YGNodeStyleSetPadding(root_child0_child0_child0, YGEdgeRight, 8);
  YGNodeStyleSetPadding(root_child0_child0_child0, YGEdgeBottom, 10);
  YGNodeStyleSetBorder(root_child0_child0_child0, YGEdgeLeft, 2);
  YGNodeStyleSetBorder(root_child0_child0_child0, YGEdgeTop, 1);
  YGNodeStyleSetBorder(root_child0_child0_child0, YGEdgeRight, 5);
  YGNodeStyleSetBorder(root_child0_child0_child0, YGEdgeBottom, 9);
  YGNodeStyleSetWidthPercent(root_child0_child0_child0, 41);
  YGNodeStyleSetHeightPercent(root_child0_child0_child0, 63);
  YGNodeInsertChild(root_child0_child0, root_child0_child0_child0, 0);
  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);

  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
  ASSERT_FLOAT_EQ(513, YGNodeLayoutGetWidth(root));
  ASSERT_FLOAT_EQ(506, YGNodeLayoutGetHeight(root));

  ASSERT_FLOAT_EQ(4, YGNodeLayoutGetLeft(root_child0));
  ASSERT_FLOAT_EQ(5, YGNodeLayoutGetTop(root_child0));
  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetWidth(root_child0));
  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetHeight(root_child0));

  ASSERT_FLOAT_EQ(15, YGNodeLayoutGetLeft(root_child0_child0));
  ASSERT_FLOAT_EQ(21, YGNodeLayoutGetTop(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetWidth(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetHeight(root_child0_child0));

  ASSERT_FLOAT_EQ(1, YGNodeLayoutGetLeft(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(29, YGNodeLayoutGetTop(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetWidth(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(306, YGNodeLayoutGetHeight(root_child0_child0_child0));

  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionRTL);

  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
  ASSERT_FLOAT_EQ(513, YGNodeLayoutGetWidth(root));
  ASSERT_FLOAT_EQ(506, YGNodeLayoutGetHeight(root));

  ASSERT_FLOAT_EQ(4, YGNodeLayoutGetLeft(root_child0));
  ASSERT_FLOAT_EQ(5, YGNodeLayoutGetTop(root_child0));
  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetWidth(root_child0));
  ASSERT_FLOAT_EQ(500, YGNodeLayoutGetHeight(root_child0));

  ASSERT_FLOAT_EQ(279, YGNodeLayoutGetLeft(root_child0_child0));
  ASSERT_FLOAT_EQ(21, YGNodeLayoutGetTop(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetWidth(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetHeight(root_child0_child0));

  ASSERT_FLOAT_EQ(-2, YGNodeLayoutGetLeft(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(29, YGNodeLayoutGetTop(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetWidth(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(306, YGNodeLayoutGetHeight(root_child0_child0_child0));

  // Relayout starts here
  YGNodeStyleSetWidth(root_child0, 456);
  YGNodeStyleSetHeight(root_child0, 432);

  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);

  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
  ASSERT_FLOAT_EQ(469, YGNodeLayoutGetWidth(root));
  ASSERT_FLOAT_EQ(438, YGNodeLayoutGetHeight(root));

  ASSERT_FLOAT_EQ(4, YGNodeLayoutGetLeft(root_child0));
  ASSERT_FLOAT_EQ(5, YGNodeLayoutGetTop(root_child0));
  ASSERT_FLOAT_EQ(456, YGNodeLayoutGetWidth(root_child0));
  ASSERT_FLOAT_EQ(432, YGNodeLayoutGetHeight(root_child0));

  ASSERT_FLOAT_EQ(15, YGNodeLayoutGetLeft(root_child0_child0));
  ASSERT_FLOAT_EQ(21, YGNodeLayoutGetTop(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetWidth(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetHeight(root_child0_child0));

  ASSERT_FLOAT_EQ(1, YGNodeLayoutGetLeft(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(29, YGNodeLayoutGetTop(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(182, YGNodeLayoutGetWidth(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(263, YGNodeLayoutGetHeight(root_child0_child0_child0));

  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionRTL);

  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
  ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
  ASSERT_FLOAT_EQ(469, YGNodeLayoutGetWidth(root));
  ASSERT_FLOAT_EQ(438, YGNodeLayoutGetHeight(root));

  ASSERT_FLOAT_EQ(4, YGNodeLayoutGetLeft(root_child0));
  ASSERT_FLOAT_EQ(5, YGNodeLayoutGetTop(root_child0));
  ASSERT_FLOAT_EQ(456, YGNodeLayoutGetWidth(root_child0));
  ASSERT_FLOAT_EQ(432, YGNodeLayoutGetHeight(root_child0));

  ASSERT_FLOAT_EQ(235, YGNodeLayoutGetLeft(root_child0_child0));
  ASSERT_FLOAT_EQ(21, YGNodeLayoutGetTop(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetWidth(root_child0_child0));
  ASSERT_FLOAT_EQ(200, YGNodeLayoutGetHeight(root_child0_child0));

  ASSERT_FLOAT_EQ(16, YGNodeLayoutGetLeft(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(29, YGNodeLayoutGetTop(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(182, YGNodeLayoutGetWidth(root_child0_child0_child0));
  ASSERT_FLOAT_EQ(263, YGNodeLayoutGetHeight(root_child0_child0_child0));

  YGNodeFreeRecursive(root);

  YGConfigFree(config);
}

TEST(YogaTest, has_new_layout_flag_set_static) {
  YGNodeRef root = YGNodeNew();
  YGNodeStyleSetWidth(root, 100);
  YGNodeStyleSetHeight(root, 100);

  YGNodeRef root_child0 = YGNodeNew();
  YGNodeStyleSetPositionType(root_child0, YGPositionTypeStatic);
  YGNodeStyleSetWidth(root_child0, 10);
  YGNodeStyleSetHeight(root_child0, 10);
  YGNodeInsertChild(root, root_child0, 0);

  YGNodeRef root_child0_child1 = YGNodeNew();
  YGNodeStyleSetPositionType(root_child0_child1, YGPositionTypeAbsolute);
  YGNodeStyleSetWidth(root_child0_child1, 5);
  YGNodeStyleSetHeight(root_child0_child1, 5);
  YGNodeInsertChild(root_child0, root_child0_child1, 0);

  YGNodeRef root_child0_child0 = YGNodeNew();
  YGNodeStyleSetPositionType(root_child0_child0, YGPositionTypeStatic);
  YGNodeStyleSetWidth(root_child0_child0, 5);
  YGNodeStyleSetHeight(root_child0_child0, 5);
  YGNodeInsertChild(root_child0, root_child0_child0, 1);

  YGNodeRef root_child0_child0_child0 = YGNodeNew();
  YGNodeStyleSetPositionType(root_child0_child0_child0, YGPositionTypeAbsolute);
  YGNodeStyleSetWidthPercent(root_child0_child0_child0, 1);
  YGNodeStyleSetHeight(root_child0_child0_child0, 1);
  YGNodeInsertChild(root_child0_child0, root_child0_child0_child0, 0);

  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
  YGNodeSetHasNewLayout(root, false);
  YGNodeSetHasNewLayout(root_child0, false);
  YGNodeSetHasNewLayout(root_child0_child0, false);
  YGNodeSetHasNewLayout(root_child0_child0_child0, false);

  YGNodeStyleSetWidth(root, 110);
  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);

  ASSERT_TRUE(YGNodeGetHasNewLayout(root));
  ASSERT_TRUE(YGNodeGetHasNewLayout(root_child0));
  ASSERT_TRUE(YGNodeGetHasNewLayout(root_child0_child0));
  ASSERT_TRUE(YGNodeGetHasNewLayout(root_child0_child0_child0));

  YGNodeFreeRecursive(root);
}