static float _baseline(YGNodeRef node, const float width, const float height) { float* baseline = (float*)node->getContext(); return *baseline; }
static YGSize _measureMax(YGNodeRef node, float width, YGMeasureMode widthMode, float height, YGMeasureMode heightMode) { int* measureCount = (int*)node->getContext(); (*measureCount)++; return YGSize{ .width = widthMode == YGMeasureModeUndefined ? 10 : width, .height = heightMode == YGMeasureModeUndefined ? 10 : height, }; } static YGSize _measureMin(YGNodeRef node, float width, YGMeasureMode widthMode, float height, YGMeasureMode heightMode) { int* measureCount = (int*)node->getContext(); *measureCount = *measureCount + 1; return YGSize{ .width = widthMode == YGMeasureModeUndefined || (widthMode == YGMeasureModeAtMost && width > 10) ? 10 : width, .height = heightMode == YGMeasureModeUndefined || (heightMode == YGMeasureModeAtMost && height > 10) ? 10 : height, }; } static YGSize _measure_84_49(YGNodeRef node, float width, YGMeasureMode widthMode, float height, YGMeasureMode heightMode) { int* measureCount = (int*)node->getContext(); if (measureCount) { (*measureCount)++; } return YGSize{ .width = 84.f, .height = 49.f, }; } TEST(YogaTest, measure_once_single_flexible_child) { const YGNodeRef root = YGNodeNew(); YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow); YGNodeStyleSetAlignItems(root, YGAlignFlexStart); YGNodeStyleSetWidth(root, 100); YGNodeStyleSetHeight(root, 100); const YGNodeRef root_child0 = YGNodeNew(); int measureCount = 0; root_child0->setContext(&measureCount); root_child0->setMeasureFunc(_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) { const YGNodeRef root = YGNodeNew(); const YGNodeRef root_child0 = YGNodeNew(); int measureCount = 0; root_child0->setContext(&measureCount); root_child0->setMeasureFunc(_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) { const YGNodeRef root = YGNodeNew(); YGNodeStyleSetAlignItems(root, YGAlignFlexStart); const YGNodeRef root_child0 = YGNodeNew(); int measureCount = 0; root_child0->setContext(&measureCount); root_child0->setMeasureFunc(_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) { const YGNodeRef root = YGNodeNew(); YGNodeStyleSetAlignItems(root, YGAlignFlexStart); const YGNodeRef root_child0 = YGNodeNew(); int measureCount = 0; root_child0->setContext(&measureCount); root_child0->setMeasureFunc(_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) { const YGNodeRef root = YGNodeNew(); YGNodeStyleSetAlignItems(root, YGAlignFlexStart); const YGNodeRef root_child0 = YGNodeNew(); int measureCount = 0; root_child0->setContext(&measureCount); root_child0->setMeasureFunc(_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; const YGNodeRef root = YGNodeNew(); YGNodeStyleSetWidth(root, 288.f); YGNodeStyleSetHeight(root, 288.f); YGNodeStyleSetFlexDirection(root, YGFlexDirectionRow); const YGNodeRef root_child0 = YGNodeNew(); YGNodeStyleSetPadding(root_child0, YGEdgeAll, 2.88f); YGNodeStyleSetFlexDirection(root_child0, YGFlexDirectionRow); YGNodeInsertChild(root, root_child0, 0); const YGNodeRef root_child0_child0 = YGNodeNew(); root_child0_child0->setContext(&measureCount); root_child0_child0->setMeasureFunc(_measure_84_49); YGNodeInsertChild(root_child0, root_child0_child0, 0); YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR); YGNodeFreeRecursive(root); ASSERT_EQ(1, measureCount); }