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// 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/metrics/stability_metrics_helper.h"
#include "base/macros.h"
#include "base/test/histogram_tester.h"
#include "components/metrics/proto/system_profile.pb.h"
#include "components/prefs/pref_service.h"
#include "components/prefs/scoped_user_pref_update.h"
#include "components/prefs/testing_pref_service.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace metrics {
namespace {
enum RendererType {
RENDERER_TYPE_RENDERER = 1,
RENDERER_TYPE_EXTENSION,
// NOTE: Add new action types only immediately above this line. Also,
// make sure the enum list in tools/metrics/histograms/histograms.xml is
// updated with any change in here.
RENDERER_TYPE_COUNT
};
class StabilityMetricsHelperTest : public testing::Test {
protected:
StabilityMetricsHelperTest() : prefs_(new TestingPrefServiceSimple) {
StabilityMetricsHelper::RegisterPrefs(prefs()->registry());
}
TestingPrefServiceSimple* prefs() { return prefs_.get(); }
private:
std::unique_ptr<TestingPrefServiceSimple> prefs_;
DISALLOW_COPY_AND_ASSIGN(StabilityMetricsHelperTest);
};
} // namespace
TEST_F(StabilityMetricsHelperTest, BrowserChildProcessCrashed) {
StabilityMetricsHelper helper(prefs());
helper.BrowserChildProcessCrashed();
helper.BrowserChildProcessCrashed();
// Call ProvideStabilityMetrics to check that it will force pending tasks to
// be executed immediately.
metrics::SystemProfileProto system_profile;
helper.ProvideStabilityMetrics(&system_profile);
// Check current number of instances created.
const metrics::SystemProfileProto_Stability& stability =
system_profile.stability();
EXPECT_EQ(2, stability.child_process_crash_count());
}
TEST_F(StabilityMetricsHelperTest, LogRendererCrash) {
StabilityMetricsHelper helper(prefs());
base::HistogramTester histogram_tester;
// Crash and abnormal termination should increment renderer crash count.
helper.LogRendererCrash(false, base::TERMINATION_STATUS_PROCESS_CRASHED, 1);
helper.LogRendererCrash(false, base::TERMINATION_STATUS_ABNORMAL_TERMINATION,
1);
// OOM should increment renderer crash count.
helper.LogRendererCrash(false, base::TERMINATION_STATUS_OOM, 1);
// Kill does not increment renderer crash count.
helper.LogRendererCrash(false, base::TERMINATION_STATUS_PROCESS_WAS_KILLED,
1);
// Failed launch increments failed launch count.
helper.LogRendererCrash(false, base::TERMINATION_STATUS_LAUNCH_FAILED, 1);
metrics::SystemProfileProto system_profile;
// Call ProvideStabilityMetrics to check that it will force pending tasks to
// be executed immediately.
helper.ProvideStabilityMetrics(&system_profile);
EXPECT_EQ(3, system_profile.stability().renderer_crash_count());
EXPECT_EQ(1, system_profile.stability().renderer_failed_launch_count());
EXPECT_EQ(0, system_profile.stability().extension_renderer_crash_count());
helper.ClearSavedStabilityMetrics();
// Crash and abnormal termination should increment extension crash count.
helper.LogRendererCrash(true, base::TERMINATION_STATUS_PROCESS_CRASHED, 1);
// OOM should increment extension renderer crash count.
helper.LogRendererCrash(true, base::TERMINATION_STATUS_OOM, 1);
// Failed launch increments extension failed launch count.
helper.LogRendererCrash(true, base::TERMINATION_STATUS_LAUNCH_FAILED, 1);
system_profile.Clear();
helper.ProvideStabilityMetrics(&system_profile);
EXPECT_EQ(0, system_profile.stability().renderer_crash_count());
EXPECT_EQ(2, system_profile.stability().extension_renderer_crash_count());
EXPECT_EQ(
1, system_profile.stability().extension_renderer_failed_launch_count());
// TERMINATION_STATUS_PROCESS_CRASHED, TERMINATION_STATUS_ABNORMAL_TERMINATION
// and TERMINATION_STATUS_OOM = 3.
histogram_tester.ExpectUniqueSample("CrashExitCodes.Renderer", 1, 3);
histogram_tester.ExpectBucketCount("BrowserRenderProcessHost.ChildCrashes",
RENDERER_TYPE_RENDERER, 3);
// TERMINATION_STATUS_PROCESS_CRASHED and TERMINATION_STATUS_OOM = 2.
histogram_tester.ExpectUniqueSample("CrashExitCodes.Extension", 1, 2);
histogram_tester.ExpectBucketCount("BrowserRenderProcessHost.ChildCrashes",
RENDERER_TYPE_EXTENSION, 2);
// One launch failure each.
histogram_tester.ExpectBucketCount(
"BrowserRenderProcessHost.ChildLaunchFailures", RENDERER_TYPE_RENDERER,
1);
histogram_tester.ExpectBucketCount(
"BrowserRenderProcessHost.ChildLaunchFailures", RENDERER_TYPE_EXTENSION,
1);
histogram_tester.ExpectBucketCount(
"BrowserRenderProcessHost.ChildLaunchFailureCodes", 1, 2);
// TERMINATION_STATUS_PROCESS_WAS_KILLED for a renderer.
histogram_tester.ExpectBucketCount("BrowserRenderProcessHost.ChildKills",
RENDERER_TYPE_RENDERER, 1);
histogram_tester.ExpectBucketCount("BrowserRenderProcessHost.ChildKills",
RENDERER_TYPE_EXTENSION, 0);
}
} // namespace metrics
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