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// Copyright (c) 2011 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 "extensions/browser/file_reader.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "base/test/task_environment.h"
#include "components/crx_file/id_util.h"
#include "extensions/common/extension_paths.h"
#include "extensions/common/extension_resource.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
class FileReaderTest : public testing::Test {
public:
FileReaderTest() {}
private:
base::test::TaskEnvironment task_environment_;
DISALLOW_COPY_AND_ASSIGN(FileReaderTest);
};
class Receiver {
public:
Receiver(const ExtensionResource& resource)
: succeeded_(false),
file_reader_(new FileReader(
resource,
FileReader::OptionalFileSequenceTask(),
base::BindOnce(&Receiver::DidReadFile, base::Unretained(this)))) {}
void Run() {
file_reader_->Start();
run_loop_.Run();
}
bool succeeded() const { return succeeded_; }
const std::string& data() const { return *data_; }
private:
void DidReadFile(bool success, std::unique_ptr<std::string> data) {
succeeded_ = success;
data_ = std::move(data);
run_loop_.QuitWhenIdle();
}
bool succeeded_;
std::unique_ptr<std::string> data_;
scoped_refptr<FileReader> file_reader_;
base::RunLoop run_loop_;
DISALLOW_COPY_AND_ASSIGN(Receiver);
};
void RunBasicTest(const char* filename) {
base::FilePath path;
base::PathService::Get(DIR_TEST_DATA, &path);
std::string extension_id = crx_file::id_util::GenerateId("test");
ExtensionResource resource(
extension_id, path, base::FilePath().AppendASCII(filename));
path = path.AppendASCII(filename);
std::string file_contents;
ASSERT_TRUE(base::ReadFileToString(path, &file_contents));
Receiver receiver(resource);
receiver.Run();
EXPECT_TRUE(receiver.succeeded());
EXPECT_EQ(file_contents, receiver.data());
}
TEST_F(FileReaderTest, SmallFile) {
RunBasicTest("smallfile");
}
TEST_F(FileReaderTest, BiggerFile) {
RunBasicTest("bigfile");
}
TEST_F(FileReaderTest, NonExistantFile) {
base::FilePath path;
base::PathService::Get(DIR_TEST_DATA, &path);
std::string extension_id = crx_file::id_util::GenerateId("test");
ExtensionResource resource(extension_id, path, base::FilePath(
FILE_PATH_LITERAL("file_that_does_not_exist")));
path = path.AppendASCII("file_that_does_not_exist");
Receiver receiver(resource);
receiver.Run();
EXPECT_FALSE(receiver.succeeded());
}
} // namespace extensions
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