TEST_F(ReadableStreamTest, CloseWhenReadable)
{
ScriptState::Scope scope(scriptState());
ExceptionState exceptionState(ExceptionState::ConstructionContext, "property", "interface", scriptState()->context()->Global(), isolate());
StringStream* stream = construct();
EXPECT_TRUE(stream->enqueue("hello"));
EXPECT_TRUE(stream->enqueue("bye"));
stream->close();
EXPECT_FALSE(stream->enqueue("should be ignored"));
EXPECT_EQ(ReadableStream::Readable, stream->stateInternal());
EXPECT_FALSE(stream->isPulling());
EXPECT_TRUE(stream->isDraining());
stream->read(scriptState());
isolate()->RunMicrotasks();
EXPECT_EQ(ReadableStream::Readable, stream->stateInternal());
EXPECT_FALSE(stream->isPulling());
EXPECT_TRUE(stream->isDraining());
stream->read(scriptState());
EXPECT_EQ(ReadableStream::Closed, stream->stateInternal());
EXPECT_FALSE(stream->isPulling());
EXPECT_TRUE(stream->isDraining());
}
int main(int argc, char *argv[])
{
try
{
std::string input("abcdefghijklmnopqrstuvwxyz");
char buffer[32];
memset(buffer, 0, 32);
StringStream sStream;
sStream.write((const sys::byte*) input.c_str(), 5);
sStream.read((sys::byte*) buffer, 3);
cout << buffer << endl;
memset(buffer, 0, 32);
sStream.write((const sys::byte*) input.c_str(), 10);
sStream.read((sys::byte*) buffer, 11);
cout << buffer << endl;
memset(buffer, 0, 32);
sStream.read((sys::byte*) buffer, 100);
cout << buffer << endl;
}
catch (Throwable& t)
{
cerr << "Caught throwable: " << t.toString() << endl;
}
catch (...)
{
cerr << "Caught unknown exception" << endl;
}
return 0;
}
TEST_F(ReadableStreamTest, BackpressureOnReading)
{
ScriptState::Scope scope(scriptState());
ExceptionState exceptionState(ExceptionState::ConstructionContext, "property", "interface", scriptState()->context()->Global(), isolate());
auto strategy = MockStrategy::create();
Checkpoint checkpoint;
StringStream* stream = construct(strategy);
EXPECT_EQ(ReadableStream::Readable, stream->stateInternal());
{
InSequence s;
EXPECT_CALL(*strategy, size(String("hello"), stream)).WillOnce(Return(2));
EXPECT_CALL(*strategy, shouldApplyBackpressure(2, stream)).WillOnce(Return(false));
EXPECT_CALL(*strategy, size(String("world"), stream)).WillOnce(Return(3));
EXPECT_CALL(*strategy, shouldApplyBackpressure(5, stream)).WillOnce(Return(false));
EXPECT_CALL(checkpoint, Call(0));
EXPECT_CALL(*strategy, shouldApplyBackpressure(3, stream)).WillOnce(Return(false));
EXPECT_CALL(*m_underlyingSource, pullSource()).Times(1);
EXPECT_CALL(checkpoint, Call(1));
// shouldApplyBackpressure and pullSource are not called because the
// stream is pulling.
EXPECT_CALL(checkpoint, Call(2));
EXPECT_CALL(*strategy, size(String("foo"), stream)).WillOnce(Return(4));
EXPECT_CALL(*strategy, shouldApplyBackpressure(4, stream)).WillOnce(Return(true));
EXPECT_CALL(*strategy, size(String("bar"), stream)).WillOnce(Return(5));
EXPECT_CALL(*strategy, shouldApplyBackpressure(9, stream)).WillOnce(Return(true));
EXPECT_CALL(checkpoint, Call(3));
EXPECT_CALL(*strategy, shouldApplyBackpressure(5, stream)).WillOnce(Return(true));
EXPECT_CALL(checkpoint, Call(4));
}
stream->enqueue("hello");
stream->enqueue("world");
checkpoint.Call(0);
stream->read(scriptState());
checkpoint.Call(1);
stream->read(scriptState());
checkpoint.Call(2);
stream->enqueue("foo");
stream->enqueue("bar");
checkpoint.Call(3);
stream->read(scriptState());
checkpoint.Call(4);
stream->error(DOMException::create(AbortError, "done"));
}