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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/message_loop.h"
#include "base/test/test_simple_task_runner.h"
#include "content/browser/streams/stream.h"
#include "content/browser/streams/stream_read_observer.h"
#include "content/browser/streams/stream_registry.h"
#include "content/browser/streams/stream_write_observer.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
class StreamTest : public testing::Test {
public:
StreamTest() {}
virtual void SetUp() OVERRIDE {
registry_.reset(new StreamRegistry());
}
// Create a new IO buffer of the given |buffer_size| and fill it with random
// data.
scoped_refptr<net::IOBuffer> NewIOBuffer(size_t buffer_size) {
scoped_refptr<net::IOBuffer> buffer(new net::IOBuffer(buffer_size));
char *bufferp = buffer->data();
for (size_t i = 0; i < buffer_size; i++)
bufferp[i] = (i + producing_seed_key_) % (1 << sizeof(char));
++producing_seed_key_;
return buffer;
}
protected:
MessageLoop message_loop_;
scoped_ptr<StreamRegistry> registry_;
private:
int producing_seed_key_;
};
class TestStreamReader : public StreamReadObserver {
public:
TestStreamReader() : buffer_(new net::GrowableIOBuffer()) {
}
virtual ~TestStreamReader() {}
void Read(Stream* stream) {
const size_t kBufferSize = 32768;
scoped_refptr<net::IOBuffer> buffer(new net::IOBuffer(kBufferSize));
int bytes_read = 0;
while (stream->ReadRawData(buffer, kBufferSize, &bytes_read) ==
Stream::STREAM_HAS_DATA) {
size_t old_capacity = buffer_->capacity();
buffer_->SetCapacity(old_capacity + bytes_read);
memcpy(buffer_->data() + old_capacity, buffer->data(), bytes_read);
}
}
virtual void OnDataAvailable(Stream* stream) OVERRIDE {
Read(stream);
}
scoped_refptr<net::GrowableIOBuffer> buffer() { return buffer_; }
private:
scoped_refptr<net::GrowableIOBuffer> buffer_;
};
class TestStreamWriter : public StreamWriteObserver {
public:
TestStreamWriter() {}
virtual ~TestStreamWriter() {}
void Write(Stream* stream,
scoped_refptr<net::IOBuffer> buffer,
size_t buffer_size) {
stream->AddData(buffer, buffer_size);
}
virtual void OnSpaceAvailable(Stream* stream) OVERRIDE {
}
};
TEST_F(StreamTest, SetReadObserver) {
TestStreamReader reader;
TestStreamWriter writer;
GURL url("blob://stream");
scoped_refptr<Stream> stream(
new Stream(registry_.get(), &writer, GURL(), url));
EXPECT_TRUE(stream->SetReadObserver(&reader));
}
TEST_F(StreamTest, SetReadObserver_SecondFails) {
TestStreamReader reader1;
TestStreamReader reader2;
TestStreamWriter writer;
GURL url("blob://stream");
scoped_refptr<Stream> stream(
new Stream(registry_.get(), &writer, GURL(), url));
EXPECT_TRUE(stream->SetReadObserver(&reader1));
EXPECT_FALSE(stream->SetReadObserver(&reader2));
}
TEST_F(StreamTest, SetReadObserver_TwoReaders) {
TestStreamReader reader1;
TestStreamReader reader2;
TestStreamWriter writer;
GURL url("blob://stream");
scoped_refptr<Stream> stream(
new Stream(registry_.get(), &writer, GURL(), url));
EXPECT_TRUE(stream->SetReadObserver(&reader1));
// Once the first read observer is removed, a new one can be added.
stream->RemoveReadObserver(&reader1);
EXPECT_TRUE(stream->SetReadObserver(&reader2));
}
TEST_F(StreamTest, Stream) {
TestStreamReader reader;
TestStreamWriter writer;
GURL url("blob://stream");
scoped_refptr<Stream> stream(
new Stream(registry_.get(), &writer, GURL(), url));
EXPECT_TRUE(stream->SetReadObserver(&reader));
int buffer_size = 1000000;
scoped_refptr<net::IOBuffer> buffer(NewIOBuffer(buffer_size));
writer.Write(stream, buffer, buffer_size);
stream->Finalize();
reader.Read(stream);
MessageLoop::current()->RunUntilIdle();
ASSERT_EQ(reader.buffer()->capacity(), buffer_size);
ASSERT_EQ(0, memcmp(buffer->data(),
reader.buffer()->data(),
buffer_size));
}
TEST_F(StreamTest, GetStream) {
TestStreamWriter writer;
GURL url("blob://stream");
scoped_refptr<Stream> stream1(
new Stream(registry_.get(), &writer, GURL(), url));
scoped_refptr<Stream> stream2 = registry_->GetStream(url);
ASSERT_EQ(stream1, stream2);
}
TEST_F(StreamTest, GetStream_Missing) {
TestStreamWriter writer;
GURL url1("blob://stream");
scoped_refptr<Stream> stream1(
new Stream(registry_.get(), &writer, GURL(), url1));
GURL url2("blob://stream2");
scoped_refptr<Stream> stream2 = registry_->GetStream(url2);
ASSERT_FALSE(stream2);
}
TEST_F(StreamTest, CloneStream) {
TestStreamWriter writer;
GURL url1("blob://stream");
scoped_refptr<Stream> stream1(
new Stream(registry_.get(), &writer, GURL(), url1));
GURL url2("blob://stream2");
ASSERT_TRUE(registry_->CloneStream(url2, url1));
scoped_refptr<Stream> stream2 = registry_->GetStream(url2);
ASSERT_EQ(stream1, stream2);
}
TEST_F(StreamTest, CloneStream_Missing) {
TestStreamWriter writer;
GURL url1("blob://stream");
scoped_refptr<Stream> stream1(
new Stream(registry_.get(), &writer, GURL(), url1));
GURL url2("blob://stream2");
GURL url3("blob://stream3");
ASSERT_FALSE(registry_->CloneStream(url2, url3));
scoped_refptr<Stream> stream2 = registry_->GetStream(url2);
ASSERT_FALSE(stream2);
}
TEST_F(StreamTest, UnregisterStream) {
TestStreamWriter writer;
GURL url("blob://stream");
scoped_refptr<Stream> stream1(
new Stream(registry_.get(), &writer, GURL(), url));
registry_->UnregisterStream(url);
scoped_refptr<Stream> stream2 = registry_->GetStream(url);
ASSERT_FALSE(stream2);
}
} // namespace content
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