components/rappor/test_rappor_service.h

   1 // Copyright 2014 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_RAPPOR_TEST_RAPPOR_SERVICE_H_
   6 #define COMPONENTS_RAPPOR_TEST_RAPPOR_SERVICE_H_
   7
   8 #include "base/prefs/testing_pref_service.h"
   9 #include "components/rappor/rappor_service.h"
  10
  11 namespace rappor {
  12
  13 // This class provides a simple instance that can be instantiated by tests
  14 // and examined to check that metrics were recorded.  It assumes the most
  15 // permissive settings so that any metric can be recorded.
  16 class TestRapporService : public RapporService {
  17  public:
  18   TestRapporService();
  19
  20   ~TestRapporService() override;
  21
  22   // Get the number of reports that would be uploaded by this service.
  23   // This also clears the internal map of metrics as a biproduct, so if
  24   // comparing numbers of reports, the comparison should be from the last time
  25   // GetReportsCount() was called (not from the beginning of the test).
  26   int GetReportsCount();
  27
  28  private:
  29   TestingPrefServiceSimple prefs_;
  30
  31   DISALLOW_COPY_AND_ASSIGN(TestRapporService);
  32 };
  33
  34 }  // namespace rappor
  35
  36 #endif  // COMPONENTS_RAPPOR_TEST_RAPPOR_SERVICE_H_