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YGRoundingMeasureFuncTest.cpp
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YGRoundingMeasureFuncTest.cpp
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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.
*/
#include <gtest/gtest.h>
#include <yoga/Yoga.h>
static YGSize _measureFloor(YGNodeRef node,
float width,
YGMeasureMode widthMode,
float height,
YGMeasureMode heightMode) {
return YGSize{
width = 10.2f, height = 10.2f,
};
}
static YGSize _measureCeil(YGNodeRef node,
float width,
YGMeasureMode widthMode,
float height,
YGMeasureMode heightMode) {
return YGSize{
width = 10.5, height = 10.5,
};
}
TEST(YogaTest, rounding_feature_with_custom_measure_func_floor) {
const YGConfigRef config = YGConfigNew();
YGConfigSetExperimentalFeatureEnabled(config, YGExperimentalFeatureRounding, true);
const YGNodeRef root = YGNodeNewWithConfig(config);
const YGNodeRef root_child0 = YGNodeNewWithConfig(config);
YGNodeSetMeasureFunc(root_child0, _measureFloor);
YGNodeInsertChild(root, root_child0, 0);
YGConfigSetPointScaleFactor(config, 0.0f);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionRTL);
ASSERT_FLOAT_EQ(10.2, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(10.2, YGNodeLayoutGetHeight(root_child0));
YGConfigSetPointScaleFactor(config, 1.0f);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
ASSERT_FLOAT_EQ(10, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(10, YGNodeLayoutGetHeight(root_child0));
YGConfigSetPointScaleFactor(config, 2.0f);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionRTL);
ASSERT_FLOAT_EQ(10, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(10, YGNodeLayoutGetHeight(root_child0));
YGConfigSetPointScaleFactor(config, 4.0f);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
ASSERT_FLOAT_EQ(10.25f, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(10.25, YGNodeLayoutGetHeight(root_child0));
YGConfigSetPointScaleFactor(config, 1.0f / 3.0f);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionRTL);
ASSERT_FLOAT_EQ(9.0, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(9.0, YGNodeLayoutGetHeight(root_child0));
YGNodeFreeRecursive(root);
YGConfigFree(config);
}
TEST(YogaTest, rounding_feature_with_custom_measure_func_ceil) {
const YGConfigRef config = YGConfigNew();
YGConfigSetExperimentalFeatureEnabled(config, YGExperimentalFeatureRounding, true);
const YGNodeRef root = YGNodeNewWithConfig(config);
const YGNodeRef root_child0 = YGNodeNewWithConfig(config);
YGNodeSetMeasureFunc(root_child0, _measureCeil);
YGNodeInsertChild(root, root_child0, 0);
YGConfigSetPointScaleFactor(config, 1.0f);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
ASSERT_FLOAT_EQ(11, YGNodeLayoutGetWidth(root_child0));
ASSERT_FLOAT_EQ(11, YGNodeLayoutGetHeight(root_child0));
YGNodeFreeRecursive(root);
YGConfigFree(config);
}