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// Copyright 2014 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 "chrome/browser/extensions/updater/local_extension_cache.h"
#include "base/bind.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/run_loop.h"
#include "base/test/sequenced_worker_pool_owner.h"
#include "base/values.h"
#include "chrome/common/extensions/extension_constants.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "content/public/test/test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
const char kTestExtensionId1[] = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
const char kTestExtensionId2[] = "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb";
const char kTestExtensionId3[] = "cccccccccccccccccccccccccccccccc";
} // namespace
namespace extensions {
class LocalExtensionCacheTest : public testing::Test {
public:
LocalExtensionCacheTest() {}
virtual ~LocalExtensionCacheTest() {}
scoped_refptr<base::SequencedTaskRunner> background_task_runner() {
return background_task_runner_;
}
// testing::Test overrides:
virtual void SetUp() override {
pool_owner_.reset(
new base::SequencedWorkerPoolOwner(3, "Background Pool"));
background_task_runner_ = pool_owner_->pool()->GetSequencedTaskRunner(
pool_owner_->pool()->GetNamedSequenceToken("background"));
}
virtual void TearDown() override {
pool_owner_->pool()->Shutdown();
base::RunLoop().RunUntilIdle();
}
base::FilePath CreateCacheDir(bool initialized) {
EXPECT_TRUE(cache_dir_.CreateUniqueTempDir());
if (initialized)
CreateFlagFile(cache_dir_.path());
return cache_dir_.path();
}
base::FilePath CreateTempDir() {
EXPECT_TRUE(temp_dir_.CreateUniqueTempDir());
return temp_dir_.path();
}
void CreateFlagFile(const base::FilePath& dir) {
CreateFile(dir.Append(
extensions::LocalExtensionCache::kCacheReadyFlagFileName),
0, base::Time::Now());
}
void CreateExtensionFile(const base::FilePath& dir,
const std::string& id,
const std::string& version,
size_t size,
const base::Time& timestamp) {
CreateFile(GetExtensionFileName(dir, id, version), size, timestamp);
}
void CreateFile(const base::FilePath& file,
size_t size,
const base::Time& timestamp) {
std::string data(size, 0);
EXPECT_EQ(base::WriteFile(file, data.data(), data.size()), int(size));
EXPECT_TRUE(base::TouchFile(file, timestamp, timestamp));
}
base::FilePath GetExtensionFileName(const base::FilePath& dir,
const std::string& id,
const std::string& version) {
return dir.Append(id + "-" + version + ".crx");
}
void WaitForCompletion() {
// In the worst case you need to repeat this up to 3 times to make sure that
// all pending tasks we sent from UI thread to task runner and back to UI.
for (int i = 0; i < 3; i++) {
// Wait for background task completion that sends replay to UI thread.
pool_owner_->pool()->FlushForTesting();
// Wait for UI thread task completion.
base::RunLoop().RunUntilIdle();
}
}
private:
content::TestBrowserThreadBundle thread_bundle_;
scoped_ptr<base::SequencedWorkerPoolOwner> pool_owner_;
scoped_refptr<base::SequencedTaskRunner> background_task_runner_;
base::ScopedTempDir cache_dir_;
base::ScopedTempDir temp_dir_;
DISALLOW_COPY_AND_ASSIGN(LocalExtensionCacheTest);
};
static void SimpleCallback(bool* ptr) {
*ptr = true;
}
TEST_F(LocalExtensionCacheTest, Basic) {
base::FilePath cache_dir(CreateCacheDir(false));
LocalExtensionCache cache(cache_dir,
1000,
base::TimeDelta::FromDays(30),
background_task_runner());
cache.SetCacheStatusPollingDelayForTests(base::TimeDelta());
bool initialized = false;
cache.Init(true, base::Bind(&SimpleCallback, &initialized));
WaitForCompletion();
EXPECT_FALSE(initialized);
CreateExtensionFile(cache_dir, kTestExtensionId1, "1.0", 100,
base::Time::Now() - base::TimeDelta::FromDays(1));
CreateExtensionFile(cache_dir, kTestExtensionId1, "0.1", 100,
base::Time::Now() - base::TimeDelta::FromDays(10));
CreateExtensionFile(cache_dir, kTestExtensionId2, "2.0", 100,
base::Time::Now() - base::TimeDelta::FromDays(40));
CreateExtensionFile(cache_dir, kTestExtensionId3, "3.0", 900,
base::Time::Now() - base::TimeDelta::FromDays(41));
CreateFlagFile(cache_dir);
WaitForCompletion();
ASSERT_TRUE(initialized);
// Older version should be removed on cache initialization.
EXPECT_FALSE(base::PathExists(
GetExtensionFileName(cache_dir, kTestExtensionId1, "0.1")));
// All extensions should be there because cleanup happens on shutdown to
// support use case when device was not used to more than 30 days and cache
// shouldn't be cleaned before someone will have a chance to use it.
EXPECT_TRUE(cache.GetExtension(kTestExtensionId1, NULL, NULL));
EXPECT_TRUE(cache.GetExtension(kTestExtensionId2, NULL, NULL));
EXPECT_TRUE(cache.GetExtension(kTestExtensionId3, NULL, NULL));
bool did_shutdown = false;
cache.Shutdown(base::Bind(&SimpleCallback, &did_shutdown));
WaitForCompletion();
ASSERT_TRUE(did_shutdown);
EXPECT_TRUE(base::PathExists(
GetExtensionFileName(cache_dir, kTestExtensionId1, "1.0")));
EXPECT_FALSE(base::PathExists(
GetExtensionFileName(cache_dir, kTestExtensionId2, "2.0")));
EXPECT_FALSE(base::PathExists(
GetExtensionFileName(cache_dir, kTestExtensionId3, "3.0")));
}
} // namespace extensions
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