Files
yoga/tests/YGDirtiedTest.cpp
Nick Gerleman c96564d23d Fix License Headers and Whitespace
Summary: This change applies all Arcanist recommended lint changes, which amounts to changing copyright headers and some cases of whitespace changes.

Reviewed By: yungsters

Differential Revision: D40060899

fbshipit-source-id: b62f9472e6ef58a3fc3d22eed661578a2635cb1f
2022-10-04 13:59:32 -07:00

108 lines
3.0 KiB
C++

/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#include <gtest/gtest.h>
#include <yoga/YGNode.h>
static void _dirtied(YGNodeRef node) {
int* dirtiedCount = (int*) node->getContext();
(*dirtiedCount)++;
}
TEST(YogaTest, dirtied) {
const YGNodeRef root = YGNodeNew();
YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
YGNodeStyleSetWidth(root, 100);
YGNodeStyleSetHeight(root, 100);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
int dirtiedCount = 0;
root->setContext(&dirtiedCount);
root->setDirtiedFunc(_dirtied);
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` MUST be called in case of explicit dirtying.
root->setDirty(true);
ASSERT_EQ(1, dirtiedCount);
// `_dirtied` MUST be called ONCE.
root->setDirty(true);
ASSERT_EQ(1, dirtiedCount);
}
TEST(YogaTest, dirtied_propagation) {
const YGNodeRef root = YGNodeNew();
YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
YGNodeStyleSetWidth(root, 100);
YGNodeStyleSetHeight(root, 100);
const YGNodeRef root_child0 = YGNodeNew();
YGNodeStyleSetWidth(root_child0, 50);
YGNodeStyleSetHeight(root_child0, 20);
YGNodeInsertChild(root, root_child0, 0);
const YGNodeRef root_child1 = YGNodeNew();
YGNodeStyleSetWidth(root_child1, 50);
YGNodeStyleSetHeight(root_child1, 20);
YGNodeInsertChild(root, root_child1, 1);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
int dirtiedCount = 0;
root->setContext(&dirtiedCount);
root->setDirtiedFunc(_dirtied);
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` MUST be called for the first time.
root_child0->markDirtyAndPropogate();
ASSERT_EQ(1, dirtiedCount);
// `_dirtied` must NOT be called for the second time.
root_child0->markDirtyAndPropogate();
ASSERT_EQ(1, dirtiedCount);
}
TEST(YogaTest, dirtied_hierarchy) {
const YGNodeRef root = YGNodeNew();
YGNodeStyleSetAlignItems(root, YGAlignFlexStart);
YGNodeStyleSetWidth(root, 100);
YGNodeStyleSetHeight(root, 100);
const YGNodeRef root_child0 = YGNodeNew();
YGNodeStyleSetWidth(root_child0, 50);
YGNodeStyleSetHeight(root_child0, 20);
YGNodeInsertChild(root, root_child0, 0);
const YGNodeRef root_child1 = YGNodeNew();
YGNodeStyleSetWidth(root_child1, 50);
YGNodeStyleSetHeight(root_child1, 20);
YGNodeInsertChild(root, root_child1, 1);
YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
int dirtiedCount = 0;
root_child0->setContext(&dirtiedCount);
root_child0->setDirtiedFunc(_dirtied);
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` must NOT be called for descendants.
root->markDirtyAndPropogate();
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` must NOT be called for the sibling node.
root_child1->markDirtyAndPropogate();
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` MUST be called in case of explicit dirtying.
root_child0->markDirtyAndPropogate();
ASSERT_EQ(1, dirtiedCount);
}