TEST_F(ReadableStreamTest, CancelWhenReadable)
{
ScriptState::Scope scope(scriptState());
ExceptionState exceptionState(ExceptionState::ConstructionContext, "property", "interface", scriptState()->context()->Global(), isolate());
StringStream* stream = construct();
String onFulfilled, onRejected;
String onCancelFulfilled, onCancelRejected;
ScriptValue reason(scriptState(), v8String(scriptState()->isolate(), "reason"));
ScriptPromise promise = ScriptPromise::cast(scriptState(), v8String(scriptState()->isolate(), "hello"));
{
InSequence s;
EXPECT_CALL(*m_underlyingSource, cancelSource(scriptState(), reason)).WillOnce(ReturnPointee(&promise));
}
stream->enqueue("hello");
EXPECT_EQ(ReadableStream::Readable, stream->stateInternal());
EXPECT_FALSE(stream->isDisturbed());
ScriptPromise cancelResult = stream->cancel(scriptState(), reason);
EXPECT_TRUE(stream->isDisturbed());
cancelResult.then(createCaptor(&onCancelFulfilled), createCaptor(&onCancelRejected));
EXPECT_NE(promise, cancelResult);
EXPECT_EQ(ReadableStream::Closed, stream->stateInternal());
EXPECT_TRUE(onCancelFulfilled.isNull());
EXPECT_TRUE(onCancelRejected.isNull());
isolate()->RunMicrotasks();
EXPECT_EQ("undefined", onCancelFulfilled);
EXPECT_TRUE(onCancelRejected.isNull());
}
TEST_F(ReadableStreamTest, CancelWhenLocked)
{
ScriptState::Scope scope(scriptState());
ExceptionState exceptionState(ExceptionState::ConstructionContext, "property", "interface", scriptState()->context()->Global(), isolate());
String onFulfilled, onRejected;
StringStream* stream = construct();
ReadableStreamReader* reader = stream->getReader(scriptState()->executionContext(), exceptionState);
EXPECT_TRUE(reader->isActive());
EXPECT_FALSE(exceptionState.hadException());
EXPECT_EQ(ReadableStream::Readable, stream->stateInternal());
EXPECT_FALSE(stream->isDisturbed());
stream->cancel(scriptState(), ScriptValue(scriptState(), v8::Undefined(isolate()))).then(createCaptor(&onFulfilled), createCaptor(&onRejected));
EXPECT_FALSE(stream->isDisturbed());
EXPECT_TRUE(onFulfilled.isNull());
EXPECT_TRUE(onRejected.isNull());
isolate()->RunMicrotasks();
EXPECT_TRUE(onFulfilled.isNull());
EXPECT_EQ("TypeError: this stream is locked to a ReadableStreamReader", onRejected);
EXPECT_TRUE(reader->isActive());
EXPECT_EQ(ReadableStream::Readable, stream->stateInternal());
}
TEST_F(ReadableStreamTest, CancelWhenErrored)
{
ScriptState::Scope scope(scriptState());
ExceptionState exceptionState(ExceptionState::ConstructionContext, "property", "interface", scriptState()->context()->Global(), isolate());
StringStream* stream = construct();
String onFulfilled, onRejected;
stream->error(DOMException::create(NotFoundError, "error"));
EXPECT_EQ(ReadableStream::Errored, stream->stateInternal());
EXPECT_FALSE(stream->isDisturbed());
ScriptPromise promise = stream->cancel(scriptState(), ScriptValue());
EXPECT_TRUE(stream->isDisturbed());
EXPECT_EQ(ReadableStream::Errored, stream->stateInternal());
promise.then(createCaptor(&onFulfilled), createCaptor(&onRejected));
EXPECT_TRUE(onFulfilled.isNull());
EXPECT_TRUE(onRejected.isNull());
isolate()->RunMicrotasks();
EXPECT_TRUE(onFulfilled.isNull());
EXPECT_EQ("NotFoundError: error", onRejected);
}