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1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "components/browser_watcher/watcher_metrics_provider_win.h" | 5 #include "components/browser_watcher/watcher_metrics_provider_win.h" |
6 | 6 |
7 #include <cstdlib> | 7 #include <cstdlib> |
8 | 8 |
9 #include "base/process/process_handle.h" | 9 #include "base/process/process_handle.h" |
10 #include "base/strings/string16.h" | 10 #include "base/strings/string16.h" |
11 #include "base/strings/stringprintf.h" | 11 #include "base/strings/stringprintf.h" |
12 #include "base/test/histogram_tester.h" | 12 #include "base/test/histogram_tester.h" |
13 #include "base/test/test_reg_util_win.h" | 13 #include "base/test/test_reg_util_win.h" |
14 #include "base/win/registry.h" | 14 #include "base/win/registry.h" |
| 15 #include "components/browser_watcher/exit_funnel_win.h" |
15 #include "testing/gtest/include/gtest/gtest.h" | 16 #include "testing/gtest/include/gtest/gtest.h" |
16 | 17 |
17 namespace browser_watcher { | 18 namespace browser_watcher { |
18 | 19 |
19 namespace { | 20 namespace { |
20 | 21 |
21 const wchar_t kRegistryPath[] = L"Software\\WatcherMetricsProviderWinTest"; | 22 const wchar_t kRegistryPath[] = L"Software\\WatcherMetricsProviderWinTest"; |
22 | 23 |
23 class WatcherMetricsProviderWinTest : public testing::Test { | 24 class WatcherMetricsProviderWinTest : public testing::Test { |
24 public: | 25 public: |
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49 // Write the exit code to registry. | 50 // Write the exit code to registry. |
50 ULONG result = key.WriteValue(key_name.c_str(), exit_code); | 51 ULONG result = key.WriteValue(key_name.c_str(), exit_code); |
51 ASSERT_EQ(result, ERROR_SUCCESS); | 52 ASSERT_EQ(result, ERROR_SUCCESS); |
52 } | 53 } |
53 | 54 |
54 size_t ExitCodeRegistryPathValueCount() { | 55 size_t ExitCodeRegistryPathValueCount() { |
55 base::win::RegKey key(HKEY_CURRENT_USER, kRegistryPath, KEY_READ); | 56 base::win::RegKey key(HKEY_CURRENT_USER, kRegistryPath, KEY_READ); |
56 return key.GetValueCount(); | 57 return key.GetValueCount(); |
57 } | 58 } |
58 | 59 |
| 60 void AddExitFunnelEvent(int pid, const base::char16* name, int64 value) { |
| 61 base::string16 key_name = |
| 62 base::StringPrintf(L"%ls\\%d-%d", kRegistryPath, pid, pid); |
| 63 |
| 64 base::win::RegKey key(HKEY_CURRENT_USER, key_name.c_str(), KEY_WRITE); |
| 65 ASSERT_EQ(key.WriteValue(name, &value, sizeof(value), REG_QWORD), |
| 66 ERROR_SUCCESS); |
| 67 } |
| 68 |
59 protected: | 69 protected: |
60 registry_util::RegistryOverrideManager override_manager_; | 70 registry_util::RegistryOverrideManager override_manager_; |
61 base::HistogramTester histogram_tester_; | 71 base::HistogramTester histogram_tester_; |
62 }; | 72 }; |
63 | 73 |
64 } // namespace | 74 } // namespace |
65 | 75 |
66 TEST_F(WatcherMetricsProviderWinTest, RecordsStabilityHistogram) { | 76 TEST_F(WatcherMetricsProviderWinTest, RecordsStabilityHistogram) { |
67 // Record multiple success exits. | 77 // Record multiple success exits. |
68 for (size_t i = 0; i < 11; ++i) | 78 for (size_t i = 0; i < 11; ++i) |
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96 WatcherMetricsProviderWin provider(kRegistryPath); | 106 WatcherMetricsProviderWin provider(kRegistryPath); |
97 | 107 |
98 provider.ProvideStabilityMetrics(NULL); | 108 provider.ProvideStabilityMetrics(NULL); |
99 histogram_tester_.ExpectUniqueSample( | 109 histogram_tester_.ExpectUniqueSample( |
100 WatcherMetricsProviderWin::kBrowserExitCodeHistogramName, 0, 11); | 110 WatcherMetricsProviderWin::kBrowserExitCodeHistogramName, 0, 11); |
101 | 111 |
102 // Verify that the reported values are gone. | 112 // Verify that the reported values are gone. |
103 EXPECT_EQ(ExitCodeRegistryPathValueCount(), 1); | 113 EXPECT_EQ(ExitCodeRegistryPathValueCount(), 1); |
104 } | 114 } |
105 | 115 |
| 116 TEST_F(WatcherMetricsProviderWinTest, RecordsOrderedExitFunnelEvents) { |
| 117 // Record an exit funnel with a given set of timings and check that the |
| 118 // ordering is correct on the reported histograms. |
| 119 // Note the recorded times are in microseconds, but the reporting is in |
| 120 // milliseconds, hence the times 1000. |
| 121 AddExitFunnelEvent(100, L"One", 1000 * 1000); |
| 122 AddExitFunnelEvent(100, L"Two", 1010 * 1000); |
| 123 AddExitFunnelEvent(100, L"Three", 990 * 1000); |
| 124 |
| 125 WatcherMetricsProviderWin provider(kRegistryPath); |
| 126 |
| 127 provider.ProvideStabilityMetrics(NULL); |
| 128 histogram_tester_.ExpectUniqueSample("Stability.ExitFunnel.Three", 0, 1); |
| 129 histogram_tester_.ExpectUniqueSample("Stability.ExitFunnel.One", 10, 1); |
| 130 histogram_tester_.ExpectUniqueSample("Stability.ExitFunnel.Two", 20, 1); |
| 131 |
| 132 // Make sure the subkey is deleted on reporting. |
| 133 base::win::RegistryKeyIterator it(HKEY_CURRENT_USER, kRegistryPath); |
| 134 ASSERT_EQ(it.SubkeyCount(), 0); |
| 135 } |
| 136 |
| 137 TEST_F(WatcherMetricsProviderWinTest, ReadsExitFunnelWrites) { |
| 138 // Test that the metrics provider picks up the writes from |
| 139 ExitFunnel funnel; |
| 140 |
| 141 ASSERT_TRUE(funnel.Init(kRegistryPath, base::GetCurrentProcessHandle())); |
| 142 |
| 143 // Each named event can only exist in a single copy. |
| 144 ASSERT_TRUE(funnel.RecordEvent(L"One")); |
| 145 ASSERT_TRUE(funnel.RecordEvent(L"One")); |
| 146 ASSERT_TRUE(funnel.RecordEvent(L"One")); |
| 147 ASSERT_TRUE(funnel.RecordEvent(L"Two")); |
| 148 ASSERT_TRUE(funnel.RecordEvent(L"Three")); |
| 149 |
| 150 WatcherMetricsProviderWin provider(kRegistryPath); |
| 151 |
| 152 provider.ProvideStabilityMetrics(NULL); |
| 153 histogram_tester_.ExpectTotalCount("Stability.ExitFunnel.One", 1); |
| 154 histogram_tester_.ExpectTotalCount("Stability.ExitFunnel.Two", 1); |
| 155 histogram_tester_.ExpectTotalCount("Stability.ExitFunnel.Three", 1); |
| 156 |
| 157 // Make sure the subkey has been deleted on reporting. |
| 158 base::win::RegistryKeyIterator it(HKEY_CURRENT_USER, kRegistryPath); |
| 159 ASSERT_EQ(it.SubkeyCount(), 0); |
| 160 } |
| 161 |
106 } // namespace browser_watcher | 162 } // namespace browser_watcher |
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