996267dbcb
Differential Revision: D13866122 (4266409934) Original commit changeset: 4faf8a9efc86 Original Phabricator Diff: D13866122 (4266409934) fbshipit-source-id: c11919fdd585f09b0422e8db55a8a3d66027676f
83 lines
3.4 KiB
C++
83 lines
3.4 KiB
C++
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include <gtest/gtest.h>
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#include <yoga/Yoga.h>
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#include <yoga/Yoga-internal.h>
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TEST(YogaTest, rounding_value) {
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// Test that whole numbers are rounded to whole despite ceil/floor flags
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(6.000001, 2.0, false, false));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(6.000001, 2.0, true, false));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(6.000001, 2.0, false, true));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(5.999999, 2.0, false, false));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(5.999999, 2.0, true, false));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(5.999999, 2.0, false, true));
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// Same tests for negative numbers
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-6.000001, 2.0, false, false));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-6.000001, 2.0, true, false));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-6.000001, 2.0, false, true));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-5.999999, 2.0, false, false));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-5.999999, 2.0, true, false));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-5.999999, 2.0, false, true));
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// Test that numbers with fraction are rounded correctly accounting for
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// ceil/floor flags
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(6.01, 2.0, false, false));
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ASSERT_FLOAT_EQ(6.5, YGRoundValueToPixelGrid(6.01, 2.0, true, false));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(6.01, 2.0, false, true));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(5.99, 2.0, false, false));
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ASSERT_FLOAT_EQ(6.0, YGRoundValueToPixelGrid(5.99, 2.0, true, false));
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ASSERT_FLOAT_EQ(5.5, YGRoundValueToPixelGrid(5.99, 2.0, false, true));
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// Same tests for negative numbers
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-6.01, 2.0, false, false));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-6.01, 2.0, true, false));
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ASSERT_FLOAT_EQ(-6.5, YGRoundValueToPixelGrid(-6.01, 2.0, false, true));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-5.99, 2.0, false, false));
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ASSERT_FLOAT_EQ(-5.5, YGRoundValueToPixelGrid(-5.99, 2.0, true, false));
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ASSERT_FLOAT_EQ(-6.0, YGRoundValueToPixelGrid(-5.99, 2.0, false, true));
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}
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static YGSize measureText(
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YGNodeRef node,
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float width,
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YGMeasureMode widthMode,
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float height,
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YGMeasureMode heightMode) {
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return YGSize{10, 10};
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}
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// Regression test for https://github.com/facebook/yoga/issues/824
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TEST(YogaTest, consistent_rounding_during_repeated_layouts) {
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const YGConfigRef config = YGConfigNew();
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YGConfigSetPointScaleFactor(config, 2);
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const YGNodeRef root = YGNodeNewWithConfig(config);
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YGNodeStyleSetMargin(root, YGEdgeTop, -1.49f);
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YGNodeStyleSetWidth(root, 500);
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YGNodeStyleSetHeight(root, 500);
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const YGNodeRef node0 = YGNodeNewWithConfig(config);
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YGNodeInsertChild(root, node0, 0);
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const YGNodeRef node1 = YGNodeNewWithConfig(config);
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YGNodeSetMeasureFunc(node1, measureText);
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YGNodeInsertChild(node0, node1, 0);
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for (int i = 0; i < 5; i++) {
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// Dirty the tree so YGRoundToPixelGrid runs again
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YGNodeStyleSetMargin(root, YGEdgeLeft, (float) (i + 1));
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YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
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ASSERT_FLOAT_EQ(10, YGNodeLayoutGetHeight(node1));
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}
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YGNodeFreeRecursive(root);
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YGConfigFree(config);
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}
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