components/safe_json/testing_json_parser.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_SAFE_JSON_TESTING_JSON_PARSER_H_
   6 #define COMPONENTS_SAFE_JSON_TESTING_JSON_PARSER_H_
   7
   8 #include "components/safe_json/safe_json_parser.h"
   9
  10 namespace safe_json {
  11
  12 // An implementation of SafeJsonParser that parses JSON in process. This can be
  13 // used in unit tests to avoid having to set up the multiprocess infrastructure
  14 // necessary for the out-of-process SafeJsonParser.
  15 class TestingJsonParser : public SafeJsonParser {
  16  public:
  17   // A helper class that will temporarily override the SafeJsonParser factory to
  18   // create instances of this class.
  19   class ScopedFactoryOverride {
  20    public:
  21     ScopedFactoryOverride();
  22     ~ScopedFactoryOverride();
  23
  24    private:
  25     DISALLOW_COPY_AND_ASSIGN(ScopedFactoryOverride);
  26   };
  27
  28   // If instantiating this class manually, it must be allocated with |new| (i.e.
  29   // not on the stack). It will delete itself after calling one of the
  30   // callbacks.
  31   TestingJsonParser(const std::string& unsafe_json,
  32                     const SuccessCallback& success_callback,
  33                     const ErrorCallback& error_callback);
  34   ~TestingJsonParser() override;
  35
  36  private:
  37   void Start() override;
  38
  39   const std::string unsafe_json_;
  40   SuccessCallback success_callback_;
  41   ErrorCallback error_callback_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(TestingJsonParser);
  44 };
  45
  46 }  // namespace
  47
  48 #endif  // COMPONENTS_SAFE_JSON_TESTING_JSON_PARSER_H_