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

net/http/http_auth_handler_basic_unittest.cc

 // 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 "net/http/http_auth_handler_basic.h"
 
 #include <memory>
 #include <string>
 
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "net/base/net_errors.h"
 #include "net/base/test_completion_callback.h"
 #include "net/http/http_auth_challenge_tokenizer.h"
 #include "net/http/http_request_info.h"
 #include "net/ssl/ssl_info.h"
+#include "net/test/gtest_util.h"
+#include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using net::test::IsOk;
+
 namespace net {
 
 TEST(HttpAuthHandlerBasicTest, GenerateAuthToken) {
   static const struct {
     const char* username;
     const char* password;
     const char* expected_credentials;
   } tests[] = {
     { "foo", "bar", "Basic Zm9vOmJhcg==" },
     // Empty username
@@ skipping 12 matching lines @@
     EXPECT_EQ(OK, factory.CreateAuthHandlerFromString(
                       challenge, HttpAuth::AUTH_SERVER, null_ssl_info, origin,
                       BoundNetLog(), &basic));
     AuthCredentials credentials(base::ASCIIToUTF16(tests[i].username),
                                 base::ASCIIToUTF16(tests[i].password));
     HttpRequestInfo request_info;
     std::string auth_token;
     TestCompletionCallback callback;
     int rv = basic->GenerateAuthToken(&credentials, &request_info,
                                       callback.callback(), &auth_token);
-    EXPECT_EQ(OK, rv);
+    EXPECT_THAT(rv, IsOk());
     EXPECT_STREQ(tests[i].expected_credentials, auth_token.c_str());
   }
 }
 
 TEST(HttpAuthHandlerBasicTest, HandleAnotherChallenge) {
   static const struct {
     const char* challenge;
     HttpAuth::AuthorizationResult expected_rv;
   } tests[] = {
     // The handler is initialized using this challenge.  The first
@@ skipping 134 matching lines @@
     int rv = factory.CreateAuthHandlerFromString(
         challenge, HttpAuth::AUTH_SERVER, null_ssl_info, origin, BoundNetLog(),
         &basic);
     EXPECT_EQ(tests[i].expected_rv, rv);
     if (rv == OK)
       EXPECT_EQ(tests[i].expected_realm, basic->realm());
   }
 }
 
 }  // namespace net