blob: 28e6c0c18b4d29d90ae2c92bd74f54a823f73721 [file] [log] [blame]
// Copyright 2015 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 "content/browser/cache_storage/cache_storage_blob_to_disk_cache.h"
#include <string>
#include <utility>
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/run_loop.h"
#include "base/test/null_task_runner.h"
#include "base/thread_task_runner_handle.h"
#include "content/browser/fileapi/chrome_blob_storage_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/test/test_browser_context.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "net/disk_cache/disk_cache.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
#include "net/url_request/url_request_job_factory_impl.h"
#include "storage/browser/blob/blob_data_builder.h"
#include "storage/browser/blob/blob_storage_context.h"
#include "storage/browser/blob/blob_url_request_job_factory.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
namespace {
const char kTestData[] = "Hello World";
const char kEntryKey[] = "FooEntry";
const int kCacheEntryIndex = 1;
void DoNothingCompletion(int rv) {
}
class NullURLRequestContextGetter : public net::URLRequestContextGetter {
public:
NullURLRequestContextGetter() : null_task_runner_(new base::NullTaskRunner) {}
net::URLRequestContext* GetURLRequestContext() override { return nullptr; }
scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
const override {
return null_task_runner_;
}
private:
~NullURLRequestContextGetter() override {}
scoped_refptr<base::SingleThreadTaskRunner> null_task_runner_;
};
// Returns a BlobProtocolHandler that uses |blob_storage_context|. Caller owns
// the memory.
scoped_ptr<storage::BlobProtocolHandler> CreateMockBlobProtocolHandler(
storage::BlobStorageContext* blob_storage_context) {
// The FileSystemContext and thread task runner are not actually used but a
// task runner is needed to avoid a DCHECK in BlobURLRequestJob ctor.
return make_scoped_ptr(new storage::BlobProtocolHandler(
blob_storage_context, nullptr,
base::ThreadTaskRunnerHandle::Get().get()));
}
// A CacheStorageBlobToDiskCache that can delay reading from blobs.
class TestCacheStorageBlobToDiskCache : public CacheStorageBlobToDiskCache {
public:
TestCacheStorageBlobToDiskCache() {}
~TestCacheStorageBlobToDiskCache() override {}
void ContinueReadFromBlob() { CacheStorageBlobToDiskCache::ReadFromBlob(); }
void set_delay_blob_reads(bool delay) { delay_blob_reads_ = delay; }
protected:
void ReadFromBlob() override {
if (delay_blob_reads_)
return;
ContinueReadFromBlob();
}
private:
bool delay_blob_reads_ = false;
DISALLOW_COPY_AND_ASSIGN(TestCacheStorageBlobToDiskCache);
};
class CacheStorageBlobToDiskCacheTest : public testing::Test {
protected:
CacheStorageBlobToDiskCacheTest()
: browser_context_(new TestBrowserContext()),
browser_thread_bundle_(TestBrowserThreadBundle::IO_MAINLOOP),
url_request_context_getter_(browser_context_->GetRequestContext()),
cache_storage_blob_to_disk_cache_(
new TestCacheStorageBlobToDiskCache()),
data_(kTestData),
callback_success_(false),
callback_called_(false) {}
void SetUp() override {
InitBlobStorage();
InitURLRequestJobFactory();
InitBlob();
InitCache();
}
void InitBlobStorage() {
ChromeBlobStorageContext* blob_storage_context =
ChromeBlobStorageContext::GetFor(browser_context_.get());
base::RunLoop().RunUntilIdle();
blob_storage_context_ = blob_storage_context->context();
}
void InitURLRequestJobFactory() {
url_request_job_factory_.reset(new net::URLRequestJobFactoryImpl);
url_request_job_factory_->SetProtocolHandler(
"blob", CreateMockBlobProtocolHandler(blob_storage_context_));
net::URLRequestContext* url_request_context =
url_request_context_getter_->GetURLRequestContext();
url_request_context->set_job_factory(url_request_job_factory_.get());
}
void InitBlob() {
scoped_ptr<storage::BlobDataBuilder> blob_data(
new storage::BlobDataBuilder("blob-id:myblob"));
blob_data->AppendData(data_);
blob_handle_ = blob_storage_context_->AddFinishedBlob(blob_data.get());
}
void InitCache() {
int rv = CreateCacheBackend(
net::MEMORY_CACHE, net::CACHE_BACKEND_DEFAULT, base::FilePath(),
(CacheStorageBlobToDiskCache::kBufferSize * 100) /* max bytes */,
false /* force */, base::ThreadTaskRunnerHandle::Get(),
nullptr /* net log */, &cache_backend_,
base::Bind(&DoNothingCompletion));
// The memory cache runs synchronously.
EXPECT_EQ(net::OK, rv);
EXPECT_TRUE(cache_backend_);
scoped_ptr<disk_cache::Entry*> entry(new disk_cache::Entry*());
disk_cache::Entry** entry_ptr = entry.get();
rv = cache_backend_->CreateEntry(kEntryKey, entry_ptr,
base::Bind(&DoNothingCompletion));
EXPECT_EQ(net::OK, rv);
disk_cache_entry_.reset(*entry);
}
std::string ReadCacheContent() {
int bytes_to_read = disk_cache_entry_->GetDataSize(kCacheEntryIndex);
scoped_refptr<net::IOBufferWithSize> buffer(
new net::IOBufferWithSize(bytes_to_read));
int rv = disk_cache_entry_->ReadData(kCacheEntryIndex, 0 /* offset */,
buffer.get(), buffer->size(),
base::Bind(&DoNothingCompletion));
EXPECT_EQ(bytes_to_read, rv);
return std::string(buffer->data(), bytes_to_read);
}
bool Stream() {
scoped_ptr<storage::BlobDataHandle> new_data_handle(
blob_storage_context_->GetBlobDataFromUUID(blob_handle_->uuid()));
cache_storage_blob_to_disk_cache_->StreamBlobToCache(
std::move(disk_cache_entry_), kCacheEntryIndex,
url_request_context_getter_, std::move(new_data_handle),
base::Bind(&CacheStorageBlobToDiskCacheTest::StreamCallback,
base::Unretained(this)));
base::RunLoop().RunUntilIdle();
return callback_called_ && callback_success_;
}
void StreamCallback(disk_cache::ScopedEntryPtr entry_ptr, bool success) {
disk_cache_entry_ = std::move(entry_ptr);
callback_success_ = success;
callback_called_ = true;
}
scoped_ptr<TestBrowserContext> browser_context_;
TestBrowserThreadBundle browser_thread_bundle_;
scoped_ptr<net::URLRequestJobFactoryImpl> url_request_job_factory_;
storage::BlobStorageContext* blob_storage_context_;
scoped_refptr<net::URLRequestContextGetter> url_request_context_getter_;
scoped_ptr<storage::BlobDataHandle> blob_handle_;
scoped_ptr<disk_cache::Backend> cache_backend_;
disk_cache::ScopedEntryPtr disk_cache_entry_;
scoped_ptr<TestCacheStorageBlobToDiskCache> cache_storage_blob_to_disk_cache_;
std::string data_;
bool callback_success_;
bool callback_called_;
};
TEST_F(CacheStorageBlobToDiskCacheTest, Stream) {
EXPECT_TRUE(Stream());
EXPECT_STREQ(data_.c_str(), ReadCacheContent().c_str());
}
TEST_F(CacheStorageBlobToDiskCacheTest, StreamLarge) {
blob_handle_.reset();
base::RunLoop().RunUntilIdle();
data_ = std::string(CacheStorageBlobToDiskCache::kBufferSize * 4, '.');
InitBlob();
EXPECT_TRUE(Stream());
EXPECT_STREQ(data_.c_str(), ReadCacheContent().c_str());
}
TEST_F(CacheStorageBlobToDiskCacheTest, TestDelayMidStream) {
cache_storage_blob_to_disk_cache_->set_delay_blob_reads(true);
// The operation should stall while reading from the blob.
EXPECT_FALSE(Stream());
EXPECT_FALSE(callback_called_);
// Verify that continuing results in a completed operation.
cache_storage_blob_to_disk_cache_->set_delay_blob_reads(false);
cache_storage_blob_to_disk_cache_->ContinueReadFromBlob();
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(callback_called_);
EXPECT_TRUE(callback_success_);
}
TEST_F(CacheStorageBlobToDiskCacheTest, DeleteMidStream) {
cache_storage_blob_to_disk_cache_->set_delay_blob_reads(true);
// The operation should stall while reading from the blob.
EXPECT_FALSE(Stream());
// Deleting the BlobToDiskCache mid-stream shouldn't cause a crash.
cache_storage_blob_to_disk_cache_.reset();
base::RunLoop().RunUntilIdle();
EXPECT_FALSE(callback_called_);
}
TEST_F(CacheStorageBlobToDiskCacheTest,
ShutdownGetterMidStreamDeletesURLRequest) {
cache_storage_blob_to_disk_cache_->set_delay_blob_reads(true);
// The operation should stall while reading from the blob.
EXPECT_FALSE(Stream());
// Shutting down the URLRequestContext mid-stream should result in a canceled
// operation.
cache_storage_blob_to_disk_cache_->OnContextShuttingDown();
url_request_context_getter_->GetURLRequestContext()->AssertNoURLRequests();
browser_context_.reset();
base::RunLoop().RunUntilIdle();
EXPECT_TRUE(callback_called_);
EXPECT_FALSE(callback_success_);
}
TEST_F(CacheStorageBlobToDiskCacheTest, StreamWithNullContextRequest) {
url_request_context_getter_ = new NullURLRequestContextGetter();
EXPECT_FALSE(Stream());
}
} // namespace
} // namespace content