Fix a leak in TestingJsonParser.

components/safe_json/testing_json_parser_unittest.cc

+// Copyright 2015 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 "components/safe_json/testing_json_parser.h"
+
+#include "base/bind.h"
+#include "base/callback.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "base/values.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace safe_json {
+namespace {
+
+const char kTestJson[] = "{\"key\":2}";
+
+class TestingJsonParserTest : public testing::Test {
+ public:
+  void Parse(const std::string& input) {
+    base::RunLoop run_loop;
+    SafeJsonParser::Parse(input,
+                          base::Bind(&SuccessCallback, base::Unretained(this),
+                                     run_loop.QuitClosure()),
+                          base::Bind(&ErrorCallback, base::Unretained(this),
+                                     run_loop.QuitClosure()));
+    run_loop.Run();
+  }
+
+  bool did_success() { return did_success_; }
+  bool did_error() { return did_error_; }
+
+ private:
+  static void SuccessCallback(TestingJsonParserTest* test,
+                              base::Closure quit_closure,
+                              scoped_ptr<base::Value> value) {
+    test->did_success_ = true;
+    quit_closure.Run();
+
+    ASSERT_TRUE(value->IsType(base::Value::TYPE_DICTIONARY));
+    base::DictionaryValue* dict;
+    ASSERT_TRUE(value->GetAsDictionary(&dict));
+    int key_value = 0;
+    EXPECT_TRUE(dict->GetInteger("key", &key_value));
+    EXPECT_EQ(2, key_value);
+  }
+
+  static void ErrorCallback(TestingJsonParserTest* test,
+                            base::Closure quit_closure,
+                            const std::string& error) {
+    test->did_error_ = true;
+    quit_closure.Run();
+
+    EXPECT_FALSE(error.empty());
+  }
+
+  base::MessageLoop message_loop;
+  TestingJsonParser::ScopedFactoryOverride factory_override_;
+  bool did_success_ = false;
+  bool did_error_ = false;
+};
+
+TEST_F(TestingJsonParserTest, QuitLoopInSuccessCallback) {
+  Parse(kTestJson);
+  EXPECT_TRUE(did_success());
+  EXPECT_FALSE(did_error());
+}
+
+TEST_F(TestingJsonParserTest, QuitLoopInErrorCallback) {
+  Parse(&kTestJson[1]);
+  EXPECT_FALSE(did_success());
+  EXPECT_TRUE(did_error());
+}
+
+}  // namespace
+}  // namespace safe_json