Refactor net tests to use GMock matchers for checking net::Error results

net/url_request/url_request_file_dir_job_unittest.cc

 // Copyright 2016 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 "net/url_request/url_request_file_dir_job.h"
 
 #include <memory>
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
 #include "net/base/filename_util.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
+#include "net/test/gtest_util.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_test_util.h"
+#include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using net::test::IsError;
+using net::test::IsOk;
+
 namespace net {
 
 namespace {
 
 const int kBufferSize = 4096;
 
 class TestJobFactory : public URLRequestJobFactory {
  public:
   explicit TestJobFactory(const base::FilePath& path) : path_(path) {}
   ~TestJobFactory() override {}
@@ skipping 86 matching lines @@
   // URLRequestFileDirJob.
   base::RunLoop().RunUntilIdle();
   ASSERT_TRUE(delegate_.got_response_started());
 
   int bytes_read = 0;
   EXPECT_FALSE(request->Read(buffer_.get(), kBufferSize, &bytes_read));
 
   // The URLRequestFileDirJobShould return the cached read error synchronously.
   // If it's not returned synchronously, the code path this is intended to test
   // was not executed.
-  EXPECT_EQ(ERR_FILE_NOT_FOUND, request->status().ToNetError());
+  EXPECT_THAT(request->status().ToNetError(), IsError(ERR_FILE_NOT_FOUND));
 }
 
 // Test the case where reading the response completes synchronously.
 TEST_F(URLRequestFileDirTest, DirectoryWithASingleFileSync) {
   base::ScopedTempDir directory;
   ASSERT_TRUE(directory.CreateUniqueTempDir());
   base::FilePath path;
   base::CreateTemporaryFileInDir(directory.path(), &path);
 
   TestJobFactory factory(directory.path());
@@ skipping 103 matching lines @@
   ASSERT_GT(delegate.bytes_received(), 0);
   ASSERT_LE(delegate.bytes_received(), kBufferSize);
   EXPECT_TRUE(delegate.data_received().find(
                   directory.path().BaseName().MaybeAsASCII()) !=
               std::string::npos);
 }
 
 }  // namespace
 
 }  // namespace net