148 lines
3.8 KiB
C++
148 lines
3.8 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its 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/YGNode.h>
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#include <ostream>
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inline bool operator==(const YGSize& lhs, const YGSize& rhs) {
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return lhs.width == rhs.width && lhs.height == rhs.height;
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}
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void PrintTo(const YGSize&, std::ostream*);
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TEST(YGNode, hasMeasureFunc_initial) {
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auto n = YGNode{};
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ASSERT_FALSE(n.hasMeasureFunc());
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}
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TEST(YGNode, hasMeasureFunc_with_measure_fn) {
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auto n = YGNode{};
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n.setMeasureFunc([](YGNode*, double, YGMeasureMode, double, YGMeasureMode) {
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return YGSize{};
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});
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ASSERT_TRUE(n.hasMeasureFunc());
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}
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TEST(YGNode, measure_with_measure_fn) {
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auto n = YGNode{};
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n.setMeasureFunc(
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[](YGNode*, double w, YGMeasureMode wm, double h, YGMeasureMode hm) {
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return YGSize{w * wm, h / hm};
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});
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ASSERT_EQ(
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n.measure(23, YGMeasureModeExactly, 24, YGMeasureModeAtMost, nullptr),
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(YGSize{23, 12}));
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}
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TEST(YGNode, measure_with_context_measure_fn) {
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auto n = YGNode{};
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n.setMeasureFunc(
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[](YGNode*, double, YGMeasureMode, double, YGMeasureMode, void* ctx) {
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return *(YGSize*) ctx;
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});
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auto result = YGSize{123.4, -56.7};
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ASSERT_EQ(
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n.measure(0, YGMeasureModeUndefined, 0, YGMeasureModeUndefined, &result),
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result);
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}
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TEST(YGNode, switching_measure_fn_types) {
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auto n = YGNode{};
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n.setMeasureFunc(
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[](YGNode*, double, YGMeasureMode, double, YGMeasureMode, void*) {
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return YGSize{};
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});
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n.setMeasureFunc(
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[](YGNode*, double w, YGMeasureMode wm, double h, YGMeasureMode hm) {
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return YGSize{w * wm, h / hm};
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});
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ASSERT_EQ(
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n.measure(23, YGMeasureModeExactly, 24, YGMeasureModeAtMost, nullptr),
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(YGSize{23, 12}));
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}
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TEST(YGNode, hasMeasureFunc_after_unset) {
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auto n = YGNode{};
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n.setMeasureFunc([](YGNode*, double, YGMeasureMode, double, YGMeasureMode) {
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return YGSize{};
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});
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n.setMeasureFunc(nullptr);
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ASSERT_FALSE(n.hasMeasureFunc());
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}
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TEST(YGNode, hasMeasureFunc_after_unset_context) {
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auto n = YGNode{};
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n.setMeasureFunc(
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[](YGNode*, double, YGMeasureMode, double, YGMeasureMode, void*) {
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return YGSize{};
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});
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n.setMeasureFunc(nullptr);
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ASSERT_FALSE(n.hasMeasureFunc());
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}
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TEST(YGNode, hasBaselineFunc_initial) {
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auto n = YGNode{};
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ASSERT_FALSE(n.hasBaselineFunc());
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}
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TEST(YGNode, hasBaselineFunc_with_baseline_fn) {
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auto n = YGNode{};
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n.setBaselineFunc([](YGNode*, double, double) { return 0.0; });
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ASSERT_TRUE(n.hasBaselineFunc());
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}
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TEST(YGNode, baseline_with_baseline_fn) {
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auto n = YGNode{};
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n.setBaselineFunc([](YGNode*, double w, double h) { return w + h; });
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ASSERT_EQ(n.baseline(1.25, 2.5, nullptr), 3.75);
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}
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TEST(YGNode, baseline_with_context_baseline_fn) {
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auto n = YGNode{};
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n.setBaselineFunc([](YGNode*, double w, double h, void* ctx) {
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return w + h + *(double*) ctx;
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});
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auto ctx = -10.0;
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ASSERT_EQ(n.baseline(1.25, 2.5, &ctx), -6.25);
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}
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TEST(YGNode, hasBaselineFunc_after_unset) {
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auto n = YGNode{};
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n.setBaselineFunc([](YGNode*, double, double) { return 0.0; });
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n.setBaselineFunc(nullptr);
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ASSERT_FALSE(n.hasBaselineFunc());
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}
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TEST(YGNode, hasBaselineFunc_after_unset_context) {
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auto n = YGNode{};
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n.setBaselineFunc([](YGNode*, double, double, void*) { return 0.0; });
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n.setMeasureFunc(nullptr);
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ASSERT_FALSE(n.hasMeasureFunc());
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}
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TEST(YGNode, switching_baseline_fn_types) {
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auto n = YGNode{};
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n.setBaselineFunc([](YGNode*, double, double, void*) { return 0.0; });
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n.setBaselineFunc([](YGNode*, double, double) { return 1.0; });
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ASSERT_EQ(n.baseline(1, 2, nullptr), 1.0);
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}
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void PrintTo(const YGSize& size, std::ostream* os) {
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*os << "YGSize{" << size.width << ", " << size.height << "}";
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}
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