a15bf6e701
Summary: Adds `LayoutPassStart` and `LayoutPassEnd` events. The existing `NodeLayout` event in isolation is not as useful as it could be. Having events that mark start and end of a layout pass are a useful addition. Differential Revision: D15305467 fbshipit-source-id: 14af6f65e698fb1e3112eb2ffd87a74d31df4840
146 lines
3.5 KiB
C++
146 lines
3.5 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 LICENSE
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* 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 <yoga/event/event.h>
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#include <yoga/YGNode.h>
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#include <yoga/testutil/testutil.h>
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#include <algorithm>
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#include <functional>
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#include <memory>
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#include <vector>
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namespace facebook {
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namespace yoga {
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namespace test {
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struct EventArgs {
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const YGNode* node;
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Event::Type type;
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std::unique_ptr<void, std::function<void(void*)>> dataPtr;
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template <Event::Type E>
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const Event::TypedData<E>& data() {
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return *static_cast<Event::TypedData<E>*>(dataPtr.get());
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}
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};
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class EventTest : public ::testing::Test {
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ScopedEventSubscription subscription = {&EventTest::listen};
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static void listen(const YGNode&, Event::Type, Event::Data);
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public:
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static std::vector<EventArgs> events;
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static EventArgs& lastEvent() { return events.back(); }
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void TearDown() override;
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};
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TEST_F(EventTest, new_node_has_event) {
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auto c = YGConfigGetDefault();
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auto n = YGNodeNew();
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ASSERT_EQ(lastEvent().node, n);
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ASSERT_EQ(lastEvent().type, Event::NodeAllocation);
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ASSERT_EQ(lastEvent().data<Event::NodeAllocation>().config, c);
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YGNodeFree(n);
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}
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TEST_F(EventTest, new_node_with_config_event) {
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auto c = YGConfigNew();
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auto n = YGNodeNewWithConfig(c);
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ASSERT_EQ(lastEvent().node, n);
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ASSERT_EQ(lastEvent().type, Event::NodeAllocation);
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ASSERT_EQ(lastEvent().data<Event::NodeAllocation>().config, c);
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YGNodeFree(n);
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YGConfigFree(c);
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}
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TEST_F(EventTest, clone_node_event) {
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auto c = YGConfigNew();
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auto n = YGNodeNewWithConfig(c);
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auto clone = YGNodeClone(n);
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ASSERT_EQ(lastEvent().node, clone);
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ASSERT_EQ(lastEvent().type, Event::NodeAllocation);
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ASSERT_EQ(lastEvent().data<Event::NodeAllocation>().config, c);
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YGNodeFree(n);
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YGNodeFree(clone);
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YGConfigFree(c);
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}
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TEST_F(EventTest, free_node_event) {
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auto c = YGConfigNew();
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auto n = YGNodeNewWithConfig(c);
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YGNodeFree(n);
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ASSERT_EQ(lastEvent().node, n);
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ASSERT_EQ(lastEvent().type, Event::NodeDeallocation);
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ASSERT_EQ(lastEvent().data<Event::NodeDeallocation>().config, c);
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YGConfigFree(c);
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}
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TEST_F(EventTest, layout_events) {
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auto root = YGNodeNew();
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auto child = YGNodeNew();
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YGNodeInsertChild(root, child, 0);
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YGNodeCalculateLayout(root, 123, 456, YGDirectionLTR);
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ASSERT_EQ(events[2].node, root);
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ASSERT_EQ(events[2].type, Event::NodeLayout);
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ASSERT_EQ(events[3].node, child);
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ASSERT_EQ(events[3].type, Event::NodeLayout);
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YGNodeFreeRecursive(root);
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}
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namespace {
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template <Event::Type E>
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EventArgs createArgs(const YGNode& node, const Event::Data& data) {
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using Data = Event::TypedData<E>;
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auto deleteData = [](void* x) { delete static_cast<Data*>(x); };
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return {&node, E, {new Data{data.get<E>()}, deleteData}};
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}
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} // namespace
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void EventTest::listen(const YGNode& node, Event::Type type, Event::Data data) {
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switch (type) {
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case Event::NodeAllocation:
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events.push_back(createArgs<Event::NodeAllocation>(node, data));
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break;
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case Event::NodeDeallocation:
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events.push_back(createArgs<Event::NodeDeallocation>(node, data));
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break;
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case Event::NodeLayout:
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events.push_back(createArgs<Event::NodeLayout>(node, data));
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break;
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case Event::LayoutPassStart:
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break;
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case Event::LayoutPassEnd:
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break;
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}
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}
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void EventTest::TearDown() {
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events.clear();
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}
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std::vector<EventArgs> EventTest::events{};
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} // namespace test
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} // namespace yoga
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} // namespace facebook
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