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Fix memory leaks in some embedder unit tests that send key events #49548

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Jan 8, 2024
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Fix memory leaks in some embedder unit tests that send key events #49548

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121 changes: 86 additions & 35 deletions shell/platform/embedder/tests/embedder_unittests.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -2128,21 +2128,33 @@ TEST_F(EmbedderTest, KeyDataIsCorrectlySerialized) {
message_latch->Signal();
};

auto& context = GetEmbedderContext(EmbedderTestContextType::kSoftwareContext);
EmbedderConfigBuilder builder(context);
builder.SetSoftwareRendererConfig();
builder.SetDartEntrypoint("key_data_echo");
auto platform_task_runner = CreateNewThread("platform_thread");

UniqueEngine engine;
fml::AutoResetWaitableEvent ready;
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&ready](Dart_NativeArguments args) { ready.Signal(); }));
platform_task_runner->PostTask([&]() {
auto& context =
GetEmbedderContext(EmbedderTestContextType::kSoftwareContext);
EmbedderConfigBuilder builder(context);
builder.SetSoftwareRendererConfig();
builder.SetDartEntrypoint("key_data_echo");
builder.SetPlatformMessageCallback(
[&](const FlutterPlatformMessage* message) {
FlutterEngineSendPlatformMessageResponse(
engine.get(), message->response_handle, nullptr, 0);
});
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&ready](Dart_NativeArguments args) { ready.Signal(); }));

context.AddNativeCallback("EchoKeyEvent",
CREATE_NATIVE_ENTRY(native_echo_event));
context.AddNativeCallback("EchoKeyEvent",
CREATE_NATIVE_ENTRY(native_echo_event));

engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
});

auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
ready.Wait();

// A normal down event
Expand All @@ -2156,8 +2168,10 @@ TEST_F(EmbedderTest, KeyDataIsCorrectlySerialized) {
.synthesized = false,
.device_type = kFlutterKeyEventDeviceTypeKeyboard,
};
FlutterEngineSendKeyEvent(engine.get(), &down_event_upper_a, nullptr,
nullptr);
platform_task_runner->PostTask([&]() {
FlutterEngineSendKeyEvent(engine.get(), &down_event_upper_a, nullptr,
nullptr);
});
message_latch->Wait();

ExpectKeyEventEq(echoed_event, down_event_upper_a);
Expand All @@ -2174,8 +2188,10 @@ TEST_F(EmbedderTest, KeyDataIsCorrectlySerialized) {
.synthesized = false,
.device_type = kFlutterKeyEventDeviceTypeKeyboard,
};
FlutterEngineSendKeyEvent(engine.get(), &repeat_event_wide_char, nullptr,
nullptr);
platform_task_runner->PostTask([&]() {
FlutterEngineSendKeyEvent(engine.get(), &repeat_event_wide_char, nullptr,
nullptr);
});
message_latch->Wait();

ExpectKeyEventEq(echoed_event, repeat_event_wide_char);
Expand All @@ -2192,11 +2208,20 @@ TEST_F(EmbedderTest, KeyDataIsCorrectlySerialized) {
.synthesized = true,
.device_type = kFlutterKeyEventDeviceTypeKeyboard,
};
FlutterEngineSendKeyEvent(engine.get(), &up_event, nullptr, nullptr);
platform_task_runner->PostTask([&]() {
FlutterEngineSendKeyEvent(engine.get(), &up_event, nullptr, nullptr);
});
message_latch->Wait();

ExpectKeyEventEq(echoed_event, up_event);
EXPECT_EQ(echoed_char, 0llu);

fml::AutoResetWaitableEvent shutdown_latch;
platform_task_runner->PostTask([&]() {
engine.reset();
shutdown_latch.Signal();
});
shutdown_latch.Wait();
}

TEST_F(EmbedderTest, KeyDataAreBuffered) {
Expand Down Expand Up @@ -2225,21 +2250,32 @@ TEST_F(EmbedderTest, KeyDataAreBuffered) {
message_latch->Signal();
};

auto& context = GetEmbedderContext(EmbedderTestContextType::kSoftwareContext);
EmbedderConfigBuilder builder(context);
builder.SetSoftwareRendererConfig();
builder.SetDartEntrypoint("key_data_late_echo");
auto platform_task_runner = CreateNewThread("platform_thread");

UniqueEngine engine;
fml::AutoResetWaitableEvent ready;
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&ready](Dart_NativeArguments args) { ready.Signal(); }));
platform_task_runner->PostTask([&]() {
auto& context =
GetEmbedderContext(EmbedderTestContextType::kSoftwareContext);
EmbedderConfigBuilder builder(context);
builder.SetSoftwareRendererConfig();
builder.SetDartEntrypoint("key_data_late_echo");
builder.SetPlatformMessageCallback(
[&](const FlutterPlatformMessage* message) {
FlutterEngineSendPlatformMessageResponse(
engine.get(), message->response_handle, nullptr, 0);
});
context.AddNativeCallback(
"SignalNativeTest",
CREATE_NATIVE_ENTRY(
[&ready](Dart_NativeArguments args) { ready.Signal(); }));

context.AddNativeCallback("EchoKeyEvent",
CREATE_NATIVE_ENTRY(native_echo_event));
context.AddNativeCallback("EchoKeyEvent",
CREATE_NATIVE_ENTRY(native_echo_event));

auto engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
engine = builder.LaunchEngine();
ASSERT_TRUE(engine.is_valid());
});
ready.Wait();

FlutterKeyEvent sample_event{
Expand All @@ -2254,7 +2290,11 @@ TEST_F(EmbedderTest, KeyDataAreBuffered) {

// Send an event.
sample_event.timestamp = 1.0l;
FlutterEngineSendKeyEvent(engine.get(), &sample_event, nullptr, nullptr);
platform_task_runner->PostTask([&]() {
FlutterEngineSendKeyEvent(engine.get(), &sample_event, nullptr, nullptr);
message_latch->Signal();
});
message_latch->Wait();

// Should not receive echos because the callback is not set yet.
EXPECT_EQ(echoed_events.size(), 0u);
Expand All @@ -2273,11 +2313,13 @@ TEST_F(EmbedderTest, KeyDataAreBuffered) {
.response_handle = response_handle,
};

FlutterEngineResult result =
FlutterEngineSendPlatformMessage(engine.get(), &message);
ASSERT_EQ(result, kSuccess);
platform_task_runner->PostTask([&]() {
FlutterEngineResult result =
FlutterEngineSendPlatformMessage(engine.get(), &message);
ASSERT_EQ(result, kSuccess);

FlutterPlatformMessageReleaseResponseHandle(engine.get(), response_handle);
FlutterPlatformMessageReleaseResponseHandle(engine.get(), response_handle);
});

// message_latch->Wait();
message_latch->Wait();
Expand All @@ -2286,11 +2328,20 @@ TEST_F(EmbedderTest, KeyDataAreBuffered) {

// Send a second event.
sample_event.timestamp = 10.0l;
FlutterEngineSendKeyEvent(engine.get(), &sample_event, nullptr, nullptr);
platform_task_runner->PostTask([&]() {
FlutterEngineSendKeyEvent(engine.get(), &sample_event, nullptr, nullptr);
});
message_latch->Wait();

// The event should be echoed, too.
EXPECT_EQ(echoed_events.size(), 2u);

fml::AutoResetWaitableEvent shutdown_latch;
platform_task_runner->PostTask([&]() {
engine.reset();
shutdown_latch.Signal();
});
shutdown_latch.Wait();
}

TEST_F(EmbedderTest, KeyDataResponseIsCorrectlyInvoked) {
Expand Down