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// Copyright 2015 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "cobalt/loader/file_fetcher.h"
#include <memory>
#include <string>
#include "base/files/file_util.h"
#include "base/memory/ptr_util.h"
#include "base/message_loop/message_loop.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "cobalt/loader/fetcher_test.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using ::testing::AtLeast;
using ::testing::InSequence;
using ::testing::StrictMock;
using ::testing::_;
namespace cobalt {
namespace loader {
class FileFetcherTest : public ::testing::Test {
protected:
FileFetcherTest();
~FileFetcherTest() override {}
base::FilePath data_dir_;
base::FilePath dir_test_data_;
base::MessageLoop message_loop_;
std::unique_ptr<FileFetcher> file_fetcher_;
};
FileFetcherTest::FileFetcherTest()
: message_loop_(base::MessageLoop::TYPE_DEFAULT) {
data_dir_ = data_dir_.Append(FILE_PATH_LITERAL("cobalt"))
.Append(FILE_PATH_LITERAL("loader"))
.Append(FILE_PATH_LITERAL("testdata"));
CHECK(base::PathService::Get(base::DIR_TEST_DATA, &dir_test_data_));
}
TEST_F(FileFetcherTest, NonExistingPath) {
base::RunLoop run_loop;
StrictMock<MockFetcherHandler> fetcher_handler_mock(&run_loop);
EXPECT_CALL(fetcher_handler_mock, OnError(_, _));
const base::FilePath file_path =
data_dir_.Append(FILE_PATH_LITERAL("nonexistent"));
FileFetcher::Options options;
file_fetcher_ = base::WrapUnique(
new FileFetcher(file_path, &fetcher_handler_mock, options));
run_loop.Run();
EXPECT_EQ(file_fetcher_.get(), fetcher_handler_mock.fetcher());
}
TEST_F(FileFetcherTest, EmptyFile) {
InSequence dummy;
base::RunLoop run_loop;
StrictMock<MockFetcherHandler> fetcher_handler_mock(&run_loop);
EXPECT_CALL(fetcher_handler_mock, OnDone(_));
const base::FilePath file_path =
data_dir_.Append(FILE_PATH_LITERAL("empty.txt"));
FileFetcher::Options options;
file_fetcher_ = base::WrapUnique(
new FileFetcher(file_path, &fetcher_handler_mock, options));
run_loop.Run();
std::string loaded_text = fetcher_handler_mock.data();
EXPECT_EQ("", loaded_text);
EXPECT_EQ(file_fetcher_.get(), fetcher_handler_mock.fetcher());
}
// Typical usage of FileFetcher.
TEST_F(FileFetcherTest, ValidFile) {
InSequence dummy;
// Create a RunLoop that controls the current message loop.
base::RunLoop run_loop;
StrictMock<MockFetcherHandler> fetcher_handler_mock(&run_loop);
EXPECT_CALL(fetcher_handler_mock, OnReceived(_, _, _)).Times(AtLeast(1));
EXPECT_CALL(fetcher_handler_mock, OnDone(_));
// Create a File Fetcher.
const base::FilePath file_path =
data_dir_.Append(FILE_PATH_LITERAL("performance-spike.html"));
FileFetcher::Options options;
options.buffer_size = 128;
file_fetcher_ = base::WrapUnique(
new FileFetcher(file_path, &fetcher_handler_mock, options));
// Start the message loop, hence the fetching.
run_loop.Run();
// Get result.
std::string loaded_text = fetcher_handler_mock.data();
std::string expected_text;
EXPECT_TRUE(
base::ReadFileToString(dir_test_data_.Append(file_path), &expected_text));
EXPECT_EQ(expected_text, loaded_text);
EXPECT_EQ(file_fetcher_.get(), fetcher_handler_mock.fetcher());
}
// Use FileFetcher with an offset.
TEST_F(FileFetcherTest, ReadWithOffset) {
const uint32 kStartOffset = 15;
InSequence dummy;
// Create a RunLoop that controls the current message loop.
base::RunLoop run_loop;
StrictMock<MockFetcherHandler> fetcher_handler_mock(&run_loop);
EXPECT_CALL(fetcher_handler_mock, OnReceived(_, _, _)).Times(AtLeast(1));
EXPECT_CALL(fetcher_handler_mock, OnDone(_));
// Create a File Fetcher.
const base::FilePath file_path =
data_dir_.Append(FILE_PATH_LITERAL("performance-spike.html"));
FileFetcher::Options options;
options.buffer_size = 128;
options.start_offset = kStartOffset;
file_fetcher_ = base::WrapUnique(
new FileFetcher(file_path, &fetcher_handler_mock, options));
// Start the message loop, hence the fetching.
run_loop.Run();
// Get result.
std::string loaded_text = fetcher_handler_mock.data();
std::string expected_text;
EXPECT_TRUE(
base::ReadFileToString(dir_test_data_.Append(file_path), &expected_text));
expected_text = expected_text.substr(kStartOffset);
EXPECT_EQ(expected_text, loaded_text);
EXPECT_EQ(file_fetcher_.get(), fetcher_handler_mock.fetcher());
}
// Use FileFetcher with an offset and explicit bytes to read.
TEST_F(FileFetcherTest, ReadWithOffsetAndSize) {
const uint32 kStartOffset = 15;
const uint32 kBytesToRead = 147;
InSequence dummy;
// Create a RunLoop that controls the current message loop.
base::RunLoop run_loop;
StrictMock<MockFetcherHandler> fetcher_handler_mock(&run_loop);
EXPECT_CALL(fetcher_handler_mock, OnReceived(_, _, _)).Times(2);
EXPECT_CALL(fetcher_handler_mock, OnDone(_));
// Create a File Fetcher.
const base::FilePath file_path =
data_dir_.Append(FILE_PATH_LITERAL("performance-spike.html"));
FileFetcher::Options options;
options.buffer_size = 128;
options.start_offset = kStartOffset;
options.bytes_to_read = kBytesToRead;
file_fetcher_ = base::WrapUnique(
new FileFetcher(file_path, &fetcher_handler_mock, options));
// Start the message loop, hence the fetching.
run_loop.Run();
// Get result.
std::string loaded_text = fetcher_handler_mock.data();
std::string expected_text;
EXPECT_TRUE(
base::ReadFileToString(dir_test_data_.Append(file_path), &expected_text));
expected_text = expected_text.substr(kStartOffset, kBytesToRead);
EXPECT_EQ(expected_text, loaded_text);
EXPECT_EQ(file_fetcher_.get(), fetcher_handler_mock.fetcher());
}
} // namespace loader
} // namespace cobalt