/**
 * 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="flex_basis_flex_grow_column" style="width: 100px; height: 100px;">
  <div style="flex-basis: 50px; flex-grow: 1;"></div>
  <div style="flex-grow: 1;"></div>
</div>

<div id="flex_basis_flex_grow_row" style="width: 100px; height: 100px; flex-direction: row;">
  <div style="flex-basis: 50px; flex-grow: 1;"></div>
  <div style="flex-grow: 1;"></div>
</div>

<div id="flex_basis_flex_shrink_column" style="width: 100px; height: 100px;">
  <div style="flex-basis: 100px; flex-shrink: 1;"></div>
  <div style="flex-basis: 50px;"></div>
</div>

<div id="flex_basis_flex_shrink_row" style="width: 100px; height: 100px; flex-direction: row;">
  <div style="flex-basis: 100px; flex-shrink: 1;"></div>
  <div style="flex-basis: 50px;"></div>
</div>

<div id="flex_shrink_to_zero" style="height: 75px;">
  <div style="width: 50px; height: 50px; flex-shrink:0;"></div>
  <div style="width: 50px; height: 50px; flex-shrink:1;"></div>
  <div style="width: 50px; height: 50px; flex-shrink:0;"></div>
</div>

<div id="flex_basis_overrides_main_size" style="height: 100px; width: 100px;">
  <div style="height: 20px; flex-grow:1; flex-basis:50px;"></div>
  <div style="height: 10px; flex-grow:1;"></div>
  <div style="height: 10px; flex-grow:1;"></div>
</div>

<div id="flex_grow_shrink_at_most" style="height: 100px; width: 100px;">
  <div>
    <div style="flex-grow:1; flex-shrink:1;"></div>
  </div>
</div>
 *
 */

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

TEST(CSSLayoutTest, flex_basis_flex_grow_column) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetWidth(root, 100);
  CSSNodeStyleSetHeight(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child0, 1);
  CSSNodeStyleSetFlexBasis(root_child0, 50);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child1, 1);
  CSSNodeInsertChild(root, root_child1, 1);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(75, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(75, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(25, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionRTL);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(75, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(75, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(25, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeFreeRecursive(root);
}

TEST(CSSLayoutTest, flex_basis_flex_grow_row) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetFlexDirection(root, CSSFlexDirectionRow);
  CSSNodeStyleSetWidth(root, 100);
  CSSNodeStyleSetHeight(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child0, 1);
  CSSNodeStyleSetFlexBasis(root_child0, 50);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child1, 1);
  CSSNodeInsertChild(root, root_child1, 1);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(75, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(75, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(25, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionRTL);

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

  ASSERT_EQ(25, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(75, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(25, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeFreeRecursive(root);
}

TEST(CSSLayoutTest, flex_basis_flex_shrink_column) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetWidth(root, 100);
  CSSNodeStyleSetHeight(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetFlexShrink(root_child0, 1);
  CSSNodeStyleSetFlexBasis(root_child0, 100);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetFlexBasis(root_child1, 50);
  CSSNodeInsertChild(root, root_child1, 1);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionRTL);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeFreeRecursive(root);
}

TEST(CSSLayoutTest, flex_basis_flex_shrink_row) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetFlexDirection(root, CSSFlexDirectionRow);
  CSSNodeStyleSetWidth(root, 100);
  CSSNodeStyleSetHeight(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetFlexShrink(root_child0, 1);
  CSSNodeStyleSetFlexBasis(root_child0, 100);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetFlexBasis(root_child1, 50);
  CSSNodeInsertChild(root, root_child1, 1);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(50, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionRTL);

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

  ASSERT_EQ(50, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetHeight(root_child1));

  CSSNodeFreeRecursive(root);
}

TEST(CSSLayoutTest, flex_shrink_to_zero) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetHeight(root, 75);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetWidth(root_child0, 50);
  CSSNodeStyleSetHeight(root_child0, 50);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetFlexShrink(root_child1, 1);
  CSSNodeStyleSetWidth(root_child1, 50);
  CSSNodeStyleSetHeight(root_child1, 50);
  CSSNodeInsertChild(root, root_child1, 1);

  const CSSNodeRef root_child2 = CSSNodeNew();
  CSSNodeStyleSetWidth(root_child2, 50);
  CSSNodeStyleSetHeight(root_child2, 50);
  CSSNodeInsertChild(root, root_child2, 2);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root));
  ASSERT_EQ(75, CSSNodeLayoutGetHeight(root));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(0, CSSNodeLayoutGetHeight(root_child1));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child2));
  ASSERT_EQ(50, CSSNodeLayoutGetTop(root_child2));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child2));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child2));

  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionRTL);

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root));
  ASSERT_EQ(75, CSSNodeLayoutGetHeight(root));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(0, CSSNodeLayoutGetHeight(root_child1));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child2));
  ASSERT_EQ(50, CSSNodeLayoutGetTop(root_child2));
  ASSERT_EQ(50, CSSNodeLayoutGetWidth(root_child2));
  ASSERT_EQ(50, CSSNodeLayoutGetHeight(root_child2));

  CSSNodeFreeRecursive(root);
}

TEST(CSSLayoutTest, flex_basis_overrides_main_size) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetWidth(root, 100);
  CSSNodeStyleSetHeight(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child0, 1);
  CSSNodeStyleSetFlexBasis(root_child0, 50);
  CSSNodeStyleSetHeight(root_child0, 20);
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child1 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child1, 1);
  CSSNodeStyleSetHeight(root_child1, 10);
  CSSNodeInsertChild(root, root_child1, 1);

  const CSSNodeRef root_child2 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child2, 1);
  CSSNodeStyleSetHeight(root_child2, 10);
  CSSNodeInsertChild(root, root_child2, 2);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(60, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(60, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(20, CSSNodeLayoutGetHeight(root_child1));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child2));
  ASSERT_EQ(80, CSSNodeLayoutGetTop(root_child2));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child2));
  ASSERT_EQ(20, CSSNodeLayoutGetHeight(root_child2));

  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionRTL);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(60, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child1));
  ASSERT_EQ(60, CSSNodeLayoutGetTop(root_child1));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child1));
  ASSERT_EQ(20, CSSNodeLayoutGetHeight(root_child1));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child2));
  ASSERT_EQ(80, CSSNodeLayoutGetTop(root_child2));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child2));
  ASSERT_EQ(20, CSSNodeLayoutGetHeight(root_child2));

  CSSNodeFreeRecursive(root);
}

TEST(CSSLayoutTest, flex_grow_shrink_at_most) {
  const CSSNodeRef root = CSSNodeNew();
  CSSNodeStyleSetWidth(root, 100);
  CSSNodeStyleSetHeight(root, 100);

  const CSSNodeRef root_child0 = CSSNodeNew();
  CSSNodeInsertChild(root, root_child0, 0);

  const CSSNodeRef root_child0_child0 = CSSNodeNew();
  CSSNodeStyleSetFlexGrow(root_child0_child0, 1);
  CSSNodeStyleSetFlexShrink(root_child0_child0, 1);
  CSSNodeInsertChild(root_child0, root_child0_child0, 0);
  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionLTR);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetHeight(root_child0_child0));

  CSSNodeCalculateLayout(root, CSSUndefined, CSSUndefined, CSSDirectionRTL);

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

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetHeight(root_child0));

  ASSERT_EQ(0, CSSNodeLayoutGetLeft(root_child0_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetTop(root_child0_child0));
  ASSERT_EQ(100, CSSNodeLayoutGetWidth(root_child0_child0));
  ASSERT_EQ(0, CSSNodeLayoutGetHeight(root_child0_child0));

  CSSNodeFreeRecursive(root);
}