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// Copyright (c) 2010 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/file_util.h"
#include "base/message_loop.h"
#include "base/scoped_temp_dir.h"
#include "chrome/browser/browser_thread.h"
#include "chrome/browser/download/base_file.h"
#include "net/base/file_stream.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
const char kTestData1[] = "Let's write some data to the file!\n";
const char kTestData2[] = "Writing more data.\n";
const char kTestData3[] = "Final line.";
class BaseFileTest : public testing::Test {
public:
BaseFileTest() : file_thread_(BrowserThread::FILE, &message_loop_) {
}
virtual void SetUp() {
ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
base_file_.reset(new BaseFile(FilePath(), GURL(), GURL(), 0, file_stream_));
}
virtual void TearDown() {
EXPECT_FALSE(base_file_->in_progress());
EXPECT_EQ(static_cast<int64>(expected_data_.size()),
base_file_->bytes_so_far());
if (!expected_data_.empty()) {
// Make sure the data has been properly written to disk.
std::string disk_data;
EXPECT_TRUE(file_util::ReadFileToString(base_file_->full_path(),
&disk_data));
EXPECT_EQ(expected_data_, disk_data);
}
// Make sure the mock BrowserThread outlives the BaseFile to satisfy
// thread checks inside it.
base_file_.reset();
}
void AppendDataToFile(const std::string& data) {
ASSERT_TRUE(base_file_->in_progress());
base_file_->AppendDataToFile(data.data(), data.size());
expected_data_ += data;
EXPECT_EQ(static_cast<int64>(expected_data_.size()),
base_file_->bytes_so_far());
}
protected:
linked_ptr<net::FileStream> file_stream_;
// BaseClass instance we are testing.
scoped_ptr<BaseFile> base_file_;
// Temporary directory for renamed downloads.
ScopedTempDir temp_dir_;
private:
// Keep track of what data should be saved to the disk file.
std::string expected_data_;
// Mock file thread to satisfy debug checks in BaseFile.
MessageLoop message_loop_;
BrowserThread file_thread_;
};
// Test the most basic scenario: just create the object and do a sanity check
// on all its accessors. This is actually a case that rarely happens
// in production, where we would at least Initialize it.
TEST_F(BaseFileTest, CreateDestroy) {
EXPECT_EQ(FilePath().value(), base_file_->full_path().value());
EXPECT_FALSE(base_file_->path_renamed());
}
// Cancel the download explicitly.
TEST_F(BaseFileTest, Cancel) {
ASSERT_TRUE(base_file_->Initialize());
EXPECT_TRUE(file_util::PathExists(base_file_->full_path()));
base_file_->Cancel();
EXPECT_FALSE(file_util::PathExists(base_file_->full_path()));
EXPECT_NE(FilePath().value(), base_file_->full_path().value());
EXPECT_FALSE(base_file_->path_renamed());
}
// Write data to the file once.
TEST_F(BaseFileTest, SingleWrite) {
ASSERT_TRUE(base_file_->Initialize());
AppendDataToFile(kTestData1);
base_file_->Finish();
EXPECT_FALSE(base_file_->path_renamed());
}
// Write data to the file multiple times.
TEST_F(BaseFileTest, MultipleWrites) {
ASSERT_TRUE(base_file_->Initialize());
AppendDataToFile(kTestData1);
AppendDataToFile(kTestData2);
AppendDataToFile(kTestData3);
base_file_->Finish();
EXPECT_FALSE(base_file_->path_renamed());
}
// Rename the file after all writes to it.
TEST_F(BaseFileTest, WriteThenRename) {
ASSERT_TRUE(base_file_->Initialize());
FilePath initial_path(base_file_->full_path());
EXPECT_TRUE(file_util::PathExists(initial_path));
FilePath new_path(temp_dir_.path().AppendASCII("NewFile"));
EXPECT_FALSE(file_util::PathExists(new_path));
AppendDataToFile(kTestData1);
EXPECT_TRUE(base_file_->Rename(new_path, true));
EXPECT_FALSE(file_util::PathExists(initial_path));
EXPECT_TRUE(file_util::PathExists(new_path));
base_file_->Finish();
EXPECT_TRUE(base_file_->path_renamed());
}
// Rename the file while the download is still in progress.
TEST_F(BaseFileTest, RenameWhileInProgress) {
ASSERT_TRUE(base_file_->Initialize());
FilePath initial_path(base_file_->full_path());
EXPECT_TRUE(file_util::PathExists(initial_path));
FilePath new_path(temp_dir_.path().AppendASCII("NewFile"));
EXPECT_FALSE(file_util::PathExists(new_path));
AppendDataToFile(kTestData1);
EXPECT_TRUE(base_file_->in_progress());
EXPECT_TRUE(base_file_->Rename(new_path, true));
EXPECT_FALSE(file_util::PathExists(initial_path));
EXPECT_TRUE(file_util::PathExists(new_path));
AppendDataToFile(kTestData2);
base_file_->Finish();
EXPECT_TRUE(base_file_->path_renamed());
}
} // namespace
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