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#include "components/metrics/cloned_install_detector.h"
6
7#include "base/prefs/testing_pref_service.h"
8#include "components/metrics/machine_id_provider.h"
9#include "components/metrics/metrics_pref_names.h"
10#include "components/metrics/metrics_state_manager.h"
11#include "testing/gtest/include/gtest/gtest.h"
12
13namespace metrics {
14
15namespace {
16
17const std::string kTestRawId = "test";
18// Hashed machine id for |kTestRawId|.
19const int kTestHashedId = 2216819;
20
21}  // namespace
22
23// TODO(jwd): Change these test to test the full flow and histogram outputs. It
24// should also remove the need to make the test a friend of
25// ClonedInstallDetector.
26TEST(ClonedInstallDetectorTest, SaveId) {
27  TestingPrefServiceSimple prefs;
28  ClonedInstallDetector::RegisterPrefs(prefs.registry());
29
30  scoped_ptr<ClonedInstallDetector> detector(
31      new ClonedInstallDetector(MachineIdProvider::CreateInstance()));
32
33  detector->SaveMachineId(&prefs, kTestRawId);
34
35  EXPECT_EQ(kTestHashedId, prefs.GetInteger(prefs::kMetricsMachineId));
36}
37
38TEST(ClonedInstallDetectorTest, DetectClone) {
39  TestingPrefServiceSimple prefs;
40  MetricsStateManager::RegisterPrefs(prefs.registry());
41
42  // Save a machine id that will cause a clone to be detected.
43  prefs.SetInteger(prefs::kMetricsMachineId, kTestHashedId + 1);
44
45  scoped_ptr<ClonedInstallDetector> detector(
46      new ClonedInstallDetector(MachineIdProvider::CreateInstance()));
47
48  detector->SaveMachineId(&prefs, kTestRawId);
49
50  EXPECT_TRUE(prefs.GetBoolean(prefs::kMetricsResetIds));
51}
52
53}  // namespace metrics
54