624325302c
Differential Revision: D74292949 Original commit changeset: 05011c66a9a9 Original Phabricator Diff: D74292949 fbshipit-source-id: c6ca51c7b882950d54b6a43e206973774db40429
164 lines
6.7 KiB
C++
164 lines
6.7 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 <cmath>
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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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// Rounding up/down halfway values is as expected for both positive and
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// negative numbers
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.5, 1.0, false, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.4, 1.0, false, false));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.6, 1.0, false, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.499999, 1.0, false, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.500001, 1.0, false, false));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.5001, 1.0, false, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.5, 1.0, true, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.4, 1.0, true, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.6, 1.0, true, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.499999, 1.0, true, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.500001, 1.0, true, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.5001, 1.0, true, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.00001, 1.0, true, false));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3, 1.0, true, false));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.5, 1.0, false, true));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.4, 1.0, false, true));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.6, 1.0, false, true));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.499999, 1.0, false, true));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.500001, 1.0, false, true));
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ASSERT_FLOAT_EQ(-4, YGRoundValueToPixelGrid(-3.5001, 1.0, false, true));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3.00001, 1.0, false, true));
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ASSERT_FLOAT_EQ(-3, YGRoundValueToPixelGrid(-3, 1.0, false, true));
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// NAN is treated as expected:
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ASSERT_TRUE(std::isnan(YGRoundValueToPixelGrid(
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std::numeric_limits<double>::quiet_NaN(), 1.5, false, false)));
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ASSERT_TRUE(std::isnan(YGRoundValueToPixelGrid(
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1.5, std::numeric_limits<double>::quiet_NaN(), false, false)));
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ASSERT_TRUE(std::isnan(YGRoundValueToPixelGrid(
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std::numeric_limits<double>::quiet_NaN(),
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std::numeric_limits<double>::quiet_NaN(),
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false,
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false)));
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}
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static YGSize measureText(
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YGNodeConstRef /*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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YGConfigRef config = YGConfigNew();
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YGConfigSetPointScaleFactor(config, 2);
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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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YGNodeRef node0 = YGNodeNewWithConfig(config);
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YGNodeInsertChild(root, node0, 0);
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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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TEST(YogaTest, per_node_point_scale_factor) {
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YGConfigRef config1 = YGConfigNew();
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YGConfigSetPointScaleFactor(config1, 2);
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YGConfigRef config2 = YGConfigNew();
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YGConfigSetPointScaleFactor(config2, 1);
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YGConfigRef config3 = YGConfigNew();
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YGConfigSetPointScaleFactor(config3, 0.5f);
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YGNodeRef root = YGNodeNewWithConfig(config1);
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YGNodeStyleSetWidth(root, 11.5);
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YGNodeStyleSetHeight(root, 11.5);
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YGNodeRef node0 = YGNodeNewWithConfig(config2);
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YGNodeStyleSetWidth(node0, 9.5);
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YGNodeStyleSetHeight(node0, 9.5);
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YGNodeInsertChild(root, node0, 0);
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YGNodeRef node1 = YGNodeNewWithConfig(config3);
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YGNodeStyleSetWidth(node1, 7);
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YGNodeStyleSetHeight(node1, 7);
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YGNodeInsertChild(node0, node1, 0);
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YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
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ASSERT_EQ(YGNodeLayoutGetWidth(root), 11.5);
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ASSERT_EQ(YGNodeLayoutGetHeight(root), 11.5);
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ASSERT_EQ(YGNodeLayoutGetWidth(node0), 10);
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ASSERT_EQ(YGNodeLayoutGetHeight(node0), 10);
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ASSERT_EQ(YGNodeLayoutGetWidth(node1), 8);
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ASSERT_EQ(YGNodeLayoutGetHeight(node1), 8);
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YGNodeFreeRecursive(root);
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YGConfigFree(config1);
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YGConfigFree(config2);
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YGConfigFree(config3);
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}
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