Files
yoga/tests/YGDirtiedTest.cpp
Nick Gerleman 26f2b28eca Breaking: Fix callback const-correctness (#1369)
Summary:
Pull Request resolved: https://github.com/facebook/yoga/pull/1369

X-link: https://github.com/facebook/react-native/pull/39370

This fixes const-correctness of callbacks (e.g. not letting a logger function modify nodes during layout). This helps us to continue to fix const-correctness issues inside of Yoga.

This change is breaking to the public API, since it requires a change in signature passed to Yoga.

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D49130714

fbshipit-source-id: 4305f8882d89f296e45b78497a51716a0dbb3b2d
2023-09-11 19:51:40 -07:00

111 lines
3.3 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/Yoga.h>
#include <yoga/node/Node.h>
using namespace facebook;
static void _dirtied(YGNodeConstRef node) {
int* dirtiedCount = (int*) YGNodeGetContext(node);
(*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;
YGNodeSetContext(root, &dirtiedCount);
YGNodeSetDirtiedFunc(root, _dirtied);
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` MUST be called in case of explicit dirtying.
static_cast<yoga::Node*>(root)->setDirty(true);
ASSERT_EQ(1, dirtiedCount);
// `_dirtied` MUST be called ONCE.
static_cast<yoga::Node*>(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;
YGNodeSetContext(root, &dirtiedCount);
YGNodeSetDirtiedFunc(root, _dirtied);
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` MUST be called for the first time.
static_cast<yoga::Node*>(root_child0)->markDirtyAndPropagate();
ASSERT_EQ(1, dirtiedCount);
// `_dirtied` must NOT be called for the second time.
static_cast<yoga::Node*>(root_child0)->markDirtyAndPropagate();
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;
YGNodeSetContext(root_child0, &dirtiedCount);
YGNodeSetDirtiedFunc(root_child0, _dirtied);
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` must NOT be called for descendants.
static_cast<yoga::Node*>(root)->markDirtyAndPropagate();
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` must NOT be called for the sibling node.
static_cast<yoga::Node*>(root_child1)->markDirtyAndPropagate();
ASSERT_EQ(0, dirtiedCount);
// `_dirtied` MUST be called in case of explicit dirtying.
static_cast<yoga::Node*>(root_child0)->markDirtyAndPropagate();
ASSERT_EQ(1, dirtiedCount);
}