Files
yoga/tests/YGAlignBaselineTest.cpp
Pritesh Nandgaonkar 8309cfc976 Fix parent height calculation in case of baseline alignment
Summary:
Prior to this diff, if parents height was not set then the height of parent was deduced as max of childrens height(considering  line ht, padding, margin etc. ), but it didn't consider the baseline scenario where the previous logic will fail as then the parents height will be determined by the space taken by children above and below the reference baseline. I added a test case for the same.

Look at the diff D9088051 which shows the screenshot of the bug.
It is solved to https://pxl.cl/gvVk

Reviewed By: dsyang

Differential Revision: D9219678

fbshipit-source-id: f4a0b9f1452c33e78bd8c6cf39f6fcf538a04074
2018-08-16 06:28:37 -07:00

97 lines
3.2 KiB
C++

/*
* Copyright (c) 2014-present, Facebook, Inc.
*
* 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>
static float
_baselineFunc(YGNodeRef node, const float width, const float height) {
return height / 2;
}
TEST(YogaTest, align_baseline_with_no_parent_ht) {
YGConfigRef config = YGConfigNew();
const YGNodeRef root = YGNodeNewWithConfig(config);
YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow);
YGNodeStyleSetAlignItems(root, YGAlignBaseline);
YGNodeStyleSetWidth(root, 150);
const YGNodeRef root_child0 = YGNodeNewWithConfig(config);
YGNodeStyleSetWidth(root_child0, 50);
YGNodeStyleSetHeight(root_child0, 50);
YGNodeInsertChild(root, root_child0, 0);
const YGNodeRef root_child1 = YGNodeNewWithConfig(config);
YGNodeStyleSetWidth(root_child1, 50);
YGNodeStyleSetHeight(root_child1, 40);
YGNodeSetBaselineFunc(root_child1, _baselineFunc);
YGNodeInsertChild(root, root_child1, 1);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
ASSERT_FLOAT_EQ(150, YGNodeLayoutGetWidth(root));
ASSERT_FLOAT_EQ(70, YGNodeLayoutGetHeight(root));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root_child0));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetHeight(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetLeft(root_child1));
ASSERT_FLOAT_EQ(30, YGNodeLayoutGetTop(root_child1));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetWidth(root_child1));
ASSERT_FLOAT_EQ(40, YGNodeLayoutGetHeight(root_child1));
YGNodeFreeRecursive(root);
YGConfigFree(config);
}
TEST(YogaTest, align_baseline_with_no_baseline_func_and_no_parent_ht) {
YGConfigRef config = YGConfigNew();
const YGNodeRef root = YGNodeNewWithConfig(config);
YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow);
YGNodeStyleSetAlignItems(root, YGAlignBaseline);
YGNodeStyleSetWidth(root, 150);
const YGNodeRef root_child0 = YGNodeNewWithConfig(config);
YGNodeStyleSetWidth(root_child0, 50);
YGNodeStyleSetHeight(root_child0, 80);
YGNodeInsertChild(root, root_child0, 0);
const YGNodeRef root_child1 = YGNodeNewWithConfig(config);
YGNodeStyleSetWidth(root_child1, 50);
YGNodeStyleSetHeight(root_child1, 50);
YGNodeInsertChild(root, root_child1, 1);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root));
ASSERT_FLOAT_EQ(150, YGNodeLayoutGetWidth(root));
ASSERT_FLOAT_EQ(80, YGNodeLayoutGetHeight(root));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetLeft(root_child0));
ASSERT_FLOAT_EQ(0, YGNodeLayoutGetTop(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(80, YGNodeLayoutGetHeight(root_child0));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetLeft(root_child1));
ASSERT_FLOAT_EQ(30, YGNodeLayoutGetTop(root_child1));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetWidth(root_child1));
ASSERT_FLOAT_EQ(50, YGNodeLayoutGetHeight(root_child1));
YGNodeFreeRecursive(root);
YGConfigFree(config);
}