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/*
* 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>
static YGSize _measureMax(
YGNodeConstRef node,
float width,
YGMeasureMode widthMode,
float height,
YGMeasureMode heightMode) {
int* measureCount = (int*)YGNodeGetContext(node);
(*measureCount)++;
return YGSize{
widthMode == YGMeasureModeUndefined ? 10 : width,
heightMode == YGMeasureModeUndefined ? 10 : height,
};
}
static YGSize _measureMin(
YGNodeConstRef node,
float width,
YGMeasureMode widthMode,
float height,
YGMeasureMode heightMode) {
int* measureCount = (int*)YGNodeGetContext(node);
*measureCount = *measureCount + 1;
return YGSize{
widthMode == YGMeasureModeUndefined ||
(widthMode == YGMeasureModeAtMost && width > 10)
? 10
: width,
heightMode == YGMeasureModeUndefined ||
(heightMode == YGMeasureModeAtMost && height > 10)
? 10
: height,
};
}
static YGSize _measure_84_49(
YGNodeConstRef node,
float /*width*/,
YGMeasureMode /*widthMode*/,
float /*height*/,
YGMeasureMode /*heightMode*/) {
int* measureCount = (int*)YGNodeGetContext(node);
if (measureCount != nullptr) {
(*measureCount)++;
}
return YGSize{84.f, 49.f};
}
TEST(YogaTest, measure_once_single_flexible_child) {
YGNodeRef root = YGNodeNew();
YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow);
YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
YGNodeStyleSetWidth(root, 100);
YGNodeStyleSetHeight(root, 100);
YGNodeRef root_child0 = YGNodeNew();
int measureCount = 0;
YGNodeSetContext(root_child0, &measureCount);
YGNodeSetMeasureFunc(root_child0, _measureMax);
YGNodeStyleSetFlexGrow(root_child0, 1);
YGNodeInsertChild(root, root_child0, 0);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
ASSERT_EQ(1, measureCount);
YGNodeFreeRecursive(root);
}
TEST(YogaTest, remeasure_with_same_exact_width_larger_than_needed_height) {
YGNodeRef root = YGNodeNew();
YGNodeRef root_child0 = YGNodeNew();
int measureCount = 0;
YGNodeSetContext(root_child0, &measureCount);
YGNodeSetMeasureFunc(root_child0, _measureMin);
YGNodeInsertChild(root, root_child0, 0);
YGNodeCalculateLayout(root, 100, 100, YGDirectionLTR);
YGNodeCalculateLayout(root, 100, 50, YGDirectionLTR);
ASSERT_EQ(1, measureCount);
YGNodeFreeRecursive(root);
}
TEST(YogaTest, remeasure_with_same_atmost_width_larger_than_needed_height) {
YGNodeRef root = YGNodeNew();
YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
YGNodeRef root_child0 = YGNodeNew();
int measureCount = 0;
YGNodeSetContext(root_child0, &measureCount);
YGNodeSetMeasureFunc(root_child0, _measureMin);
YGNodeInsertChild(root, root_child0, 0);
YGNodeCalculateLayout(root, 100, 100, YGDirectionLTR);
YGNodeCalculateLayout(root, 100, 50, YGDirectionLTR);
ASSERT_EQ(1, measureCount);
YGNodeFreeRecursive(root);
}
TEST(YogaTest, remeasure_with_computed_width_larger_than_needed_height) {
YGNodeRef root = YGNodeNew();
YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
YGNodeRef root_child0 = YGNodeNew();
int measureCount = 0;
YGNodeSetContext(root_child0, &measureCount);
YGNodeSetMeasureFunc(root_child0, _measureMin);
YGNodeInsertChild(root, root_child0, 0);
YGNodeCalculateLayout(root, 100, 100, YGDirectionLTR);
YGNodeStyleSetAlignItems(root, YGAlignStretch);
YGNodeCalculateLayout(root, 10, 50, YGDirectionLTR);
ASSERT_EQ(1, measureCount);
YGNodeFreeRecursive(root);
}
TEST(YogaTest, remeasure_with_atmost_computed_width_undefined_height) {
YGNodeRef root = YGNodeNew();
YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
YGNodeRef root_child0 = YGNodeNew();
int measureCount = 0;
YGNodeSetContext(root_child0, &measureCount);
YGNodeSetMeasureFunc(root_child0, _measureMin);
YGNodeInsertChild(root, root_child0, 0);
YGNodeCalculateLayout(root, 100, YGUndefined, YGDirectionLTR);
YGNodeCalculateLayout(root, 10, YGUndefined, YGDirectionLTR);
ASSERT_EQ(1, measureCount);
YGNodeFreeRecursive(root);
}
TEST(
YogaTest,
remeasure_with_already_measured_value_smaller_but_still_float_equal) {
int measureCount = 0;
YGNodeRef root = YGNodeNew();
YGNodeStyleSetWidth(root, 288.f);
YGNodeStyleSetHeight(root, 288.f);
YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow);
YGNodeRef root_child0 = YGNodeNew();
YGNodeStyleSetPadding(root_child0, YGEdgeAll, 2.88f);
YGNodeStyleSetFlexDirection(root_child0, YGFlexDirectionRow);
YGNodeInsertChild(root, root_child0, 0);
YGNodeRef root_child0_child0 = YGNodeNew();
YGNodeSetContext(root_child0_child0, &measureCount);
YGNodeSetMeasureFunc(root_child0_child0, _measure_84_49);
YGNodeInsertChild(root_child0, root_child0_child0, 0);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
YGNodeFreeRecursive(root);
ASSERT_EQ(1, measureCount);
}
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