42bba10894
Summary: Changelog: Tidy up license headers Reviewed By: SidharthGuglani Differential Revision: D17919414 fbshipit-source-id: 0501b495dc0a42256ca6ba3284a873da1ab175c0
108 lines
3.0 KiB
C++
108 lines
3.0 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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static void _dirtied(YGNodeRef node) {
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int* dirtiedCount = (int*) node->getContext();
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(*dirtiedCount)++;
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}
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TEST(YogaTest, dirtied) {
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const YGNodeRef root = YGNodeNew();
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YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
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YGNodeStyleSetWidth(root, 100);
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YGNodeStyleSetHeight(root, 100);
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YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
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int dirtiedCount = 0;
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root->setContext(&dirtiedCount);
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root->setDirtiedFunc(_dirtied);
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ASSERT_EQ(0, dirtiedCount);
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// `_dirtied` MUST be called in case of explicit dirtying.
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root->setDirty(true);
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ASSERT_EQ(1, dirtiedCount);
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// `_dirtied` MUST be called ONCE.
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root->setDirty(true);
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ASSERT_EQ(1, dirtiedCount);
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}
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TEST(YogaTest, dirtied_propagation) {
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const YGNodeRef root = YGNodeNew();
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YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
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YGNodeStyleSetWidth(root, 100);
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YGNodeStyleSetHeight(root, 100);
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const YGNodeRef root_child0 = YGNodeNew();
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YGNodeStyleSetWidth(root_child0, 50);
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YGNodeStyleSetHeight(root_child0, 20);
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YGNodeInsertChild(root, root_child0, 0);
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const YGNodeRef root_child1 = YGNodeNew();
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YGNodeStyleSetWidth(root_child1, 50);
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YGNodeStyleSetHeight(root_child1, 20);
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YGNodeInsertChild(root, root_child1, 1);
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YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
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int dirtiedCount = 0;
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root->setContext(&dirtiedCount);
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root->setDirtiedFunc(_dirtied);
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ASSERT_EQ(0, dirtiedCount);
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// `_dirtied` MUST be called for the first time.
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root_child0->markDirtyAndPropogate();
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ASSERT_EQ(1, dirtiedCount);
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// `_dirtied` must NOT be called for the second time.
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root_child0->markDirtyAndPropogate();
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ASSERT_EQ(1, dirtiedCount);
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}
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TEST(YogaTest, dirtied_hierarchy) {
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const YGNodeRef root = YGNodeNew();
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YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
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YGNodeStyleSetWidth(root, 100);
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YGNodeStyleSetHeight(root, 100);
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const YGNodeRef root_child0 = YGNodeNew();
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YGNodeStyleSetWidth(root_child0, 50);
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YGNodeStyleSetHeight(root_child0, 20);
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YGNodeInsertChild(root, root_child0, 0);
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const YGNodeRef root_child1 = YGNodeNew();
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YGNodeStyleSetWidth(root_child1, 50);
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YGNodeStyleSetHeight(root_child1, 20);
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YGNodeInsertChild(root, root_child1, 1);
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YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
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int dirtiedCount = 0;
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root_child0->setContext(&dirtiedCount);
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root_child0->setDirtiedFunc(_dirtied);
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ASSERT_EQ(0, dirtiedCount);
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// `_dirtied` must NOT be called for descendants.
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root->markDirtyAndPropogate();
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ASSERT_EQ(0, dirtiedCount);
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// `_dirtied` must NOT be called for the sibling node.
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root_child1->markDirtyAndPropogate();
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ASSERT_EQ(0, dirtiedCount);
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// `_dirtied` MUST be called in case of explicit dirtying.
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root_child0->markDirtyAndPropogate();
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ASSERT_EQ(1, dirtiedCount);
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}
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