GMock matchers for net::Error

net/test/gtest_util.h

 // Copyright 2014 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.
 //
 // Testing utilities that extend gtest.
 
 #ifndef NET_TEST_GTEST_UTIL_H_
 #define NET_TEST_GTEST_UTIL_H_
 
 #include "base/test/mock_log.h"
+#include "net/base/net_errors.h"
 #include "net/test/scoped_disable_exit_on_dfatal.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 namespace test {
 
+// A GMock matcher that checks whether the argument is the expected net::Error.
+// On failure, the expected and actual net::Error names will be printed.
+// Usage: EXPECT_THAT(foo(), IsError(net::ERR_INVALID_ARGUMENT));
+MATCHER_P(IsError,
+          expected,
+          std::string(negation ? "not " : "") + net::ErrorToString(expected)) {
+  if (arg <= 0)
+    *result_listener << net::ErrorToString(arg);
+  return arg == expected;
+}
+
+// Shorthand for IsError(net::OK).
+// Usage: EXPECT_THAT(foo(), IsOk());
+MATCHER(IsOk,
+        std::string(negation ? "not " : "") + net::ErrorToString(net::OK)) {
+  if (arg <= 0)
+    *result_listener << net::ErrorToString(arg);
+  return arg == net::OK;
+}
+
 // Internal implementation for the EXPECT_DFATAL and ASSERT_DFATAL
 // macros.  Do not use this directly.
 #define GTEST_DFATAL_(statement, matcher, fail)                        \
   GTEST_AMBIGUOUS_ELSE_BLOCKER_                                        \
   if (true) {                                                          \
     ::base::test::MockLog gtest_log;                                   \
     ::net::test::ScopedDisableExitOnDFatal gtest_disable_exit;         \
     using ::testing::_;                                                \
     EXPECT_CALL(gtest_log, Log(_, _, _, _, _))                         \
         .WillRepeatedly(::testing::Return(false));                     \
@@ skipping 61 matching lines @@
     statement;                                \
   } else                                      \
     GTEST_NONFATAL_FAILURE_("")
 
 #endif  // NDEBUG
 
 }  // namespace test
 }  // namespace net
 
 #endif  // NET_TEST_GTEST_UTIL_H_