Normalizing source file names before calculating hash

chrome/browser/metrics/metrics_log_unittest.cc

 // Copyright (c) 2012 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 "chrome/browser/metrics/metrics_log.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/basictypes.h"
@@ skipping 10 matching lines @@
 #include "base/time/time.h"
 #include "base/tracked_objects.h"
 #include "chrome/browser/google/google_util.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/metrics/proto/profiler_event.pb.h"
 #include "chrome/common/metrics/proto/system_profile.pb.h"
 #include "chrome/common/metrics/variations/variations_util.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/installer/util/google_update_settings.h"
+#include "components/metrics/metrics_hashes.h"
 #include "components/variations/metrics_util.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/process_type.h"
 #include "content/public/common/webplugininfo.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/size.h"
 #include "url/gurl.h"
 
@@ skipping 419 matching lines @@
   EXPECT_FALSE(stability.plugin_stability(0).plugin().is_pepper());
   EXPECT_EQ(1, stability.plugin_stability(0).launch_count());
   EXPECT_EQ(2, stability.plugin_stability(0).crash_count());
   EXPECT_EQ(3, stability.plugin_stability(0).instance_count());
   EXPECT_EQ(4, stability.plugin_stability(0).loading_error_count());
 }
 #endif  // defined(ENABLE_PLUGINS)
 
 // Test that we properly write profiler data to the log.
 TEST_F(MetricsLogTest, RecordProfilerData) {
+  // WARNING: If you broke the below check, you've modified how
+  // metrics::HashMetricName works. Please also modify all server-side code that
+  // relies on the existing way of hashing.
+  EXPECT_EQ(GG_UINT64_C(1518842999910132863),
+            metrics::HashMetricName("birth_thread*"));
+
   TestMetricsLog log(kClientId, kSessionId);
   EXPECT_EQ(0, log.uma_proto().profiler_event_size());
 
   {
     ProcessDataSnapshot process_data;
     process_data.process_id = 177;
     process_data.tasks.push_back(TaskSnapshot());
-    process_data.tasks.back().birth.location.file_name = "file";
+    process_data.tasks.back().birth.location.file_name = "a/b/file.h";
     process_data.tasks.back().birth.location.function_name = "function";
     process_data.tasks.back().birth.location.line_number = 1337;
     process_data.tasks.back().birth.thread_name = "birth_thread";
     process_data.tasks.back().death_data.count = 37;
     process_data.tasks.back().death_data.run_duration_sum = 31;
     process_data.tasks.back().death_data.run_duration_max = 17;
     process_data.tasks.back().death_data.run_duration_sample = 13;
     process_data.tasks.back().death_data.queue_duration_sum = 8;
     process_data.tasks.back().death_data.queue_duration_max = 5;
     process_data.tasks.back().death_data.queue_duration_sample = 3;
     process_data.tasks.back().death_thread_name = "Still_Alive";
     process_data.tasks.push_back(TaskSnapshot());
-    process_data.tasks.back().birth.location.file_name = "file2";
+    process_data.tasks.back().birth.location.file_name = "c\\d\\file2";
     process_data.tasks.back().birth.location.function_name = "function2";
     process_data.tasks.back().birth.location.line_number = 1773;
     process_data.tasks.back().birth.thread_name = "birth_thread2";
     process_data.tasks.back().death_data.count = 19;
     process_data.tasks.back().death_data.run_duration_sum = 23;
     process_data.tasks.back().death_data.run_duration_max = 11;
     process_data.tasks.back().death_data.run_duration_sample = 7;
     process_data.tasks.back().death_data.queue_duration_sum = 0;
     process_data.tasks.back().death_data.queue_duration_max = 0;
     process_data.tasks.back().death_data.queue_duration_sample = 0;
     process_data.tasks.back().death_thread_name = "death_thread";
 
     log.RecordProfilerData(process_data, content::PROCESS_TYPE_BROWSER);
     ASSERT_EQ(1, log.uma_proto().profiler_event_size());
     EXPECT_EQ(ProfilerEventProto::STARTUP_PROFILE,
               log.uma_proto().profiler_event(0).profile_type());
     EXPECT_EQ(ProfilerEventProto::WALL_CLOCK_TIME,
               log.uma_proto().profiler_event(0).time_source());
 
     ASSERT_EQ(2, log.uma_proto().profiler_event(0).tracked_object_size());
 
     const ProfilerEventProto::TrackedObject* tracked_object =
         &log.uma_proto().profiler_event(0).tracked_object(0);
-    EXPECT_EQ(GG_UINT64_C(10123486280357988687),
+    EXPECT_EQ(metrics::HashMetricName("file.h"),
               tracked_object->source_file_name_hash());
-    EXPECT_EQ(GG_UINT64_C(13962325592283560029),
+    EXPECT_EQ(metrics::HashMetricName("function"),
               tracked_object->source_function_name_hash());
     EXPECT_EQ(1337, tracked_object->source_line_number());
-    EXPECT_EQ(GG_UINT64_C(3400908935414830400),
+    EXPECT_EQ(metrics::HashMetricName("birth_thread"),
               tracked_object->birth_thread_name_hash());
     EXPECT_EQ(37, tracked_object->exec_count());
     EXPECT_EQ(31, tracked_object->exec_time_total());
     EXPECT_EQ(13, tracked_object->exec_time_sampled());
     EXPECT_EQ(8, tracked_object->queue_time_total());
     EXPECT_EQ(3, tracked_object->queue_time_sampled());
-    EXPECT_EQ(GG_UINT64_C(10151977472163283085),
+    EXPECT_EQ(metrics::HashMetricName("Still_Alive"),
               tracked_object->exec_thread_name_hash());
     EXPECT_EQ(177U, tracked_object->process_id());
     EXPECT_EQ(ProfilerEventProto::TrackedObject::BROWSER,
               tracked_object->process_type());
 
     tracked_object = &log.uma_proto().profiler_event(0).tracked_object(1);
-    EXPECT_EQ(GG_UINT64_C(2025659946535236365),
+    EXPECT_EQ(metrics::HashMetricName("file2"),
               tracked_object->source_file_name_hash());
-    EXPECT_EQ(GG_UINT64_C(55232426147951219),
+    EXPECT_EQ(metrics::HashMetricName("function2"),
               tracked_object->source_function_name_hash());
     EXPECT_EQ(1773, tracked_object->source_line_number());
-    EXPECT_EQ(GG_UINT64_C(1518842999910132863),
+    EXPECT_EQ(metrics::HashMetricName("birth_thread*"),
               tracked_object->birth_thread_name_hash());
     EXPECT_EQ(19, tracked_object->exec_count());
     EXPECT_EQ(23, tracked_object->exec_time_total());
     EXPECT_EQ(7, tracked_object->exec_time_sampled());
     EXPECT_EQ(0, tracked_object->queue_time_total());
     EXPECT_EQ(0, tracked_object->queue_time_sampled());
-    EXPECT_EQ(GG_UINT64_C(14275151213201158253),
+    EXPECT_EQ(metrics::HashMetricName("death_thread"),
               tracked_object->exec_thread_name_hash());
     EXPECT_EQ(177U, tracked_object->process_id());
     EXPECT_EQ(ProfilerEventProto::TrackedObject::BROWSER,
               tracked_object->process_type());
   }
 
   {
     ProcessDataSnapshot process_data;
     process_data.process_id = 1177;
     process_data.tasks.push_back(TaskSnapshot());
     process_data.tasks.back().birth.location.file_name = "file3";
     process_data.tasks.back().birth.location.function_name = "function3";
     process_data.tasks.back().birth.location.line_number = 7331;
     process_data.tasks.back().birth.thread_name = "birth_thread3";
     process_data.tasks.back().death_data.count = 137;
     process_data.tasks.back().death_data.run_duration_sum = 131;
     process_data.tasks.back().death_data.run_duration_max = 117;
     process_data.tasks.back().death_data.run_duration_sample = 113;
     process_data.tasks.back().death_data.queue_duration_sum = 108;
     process_data.tasks.back().death_data.queue_duration_max = 105;
     process_data.tasks.back().death_data.queue_duration_sample = 103;
     process_data.tasks.back().death_thread_name = "death_thread3";
+    process_data.tasks.push_back(TaskSnapshot());
+    process_data.tasks.back().birth.location.file_name = "";
+    process_data.tasks.back().birth.location.function_name = "";
+    process_data.tasks.back().birth.location.line_number = 7332;
+    process_data.tasks.back().birth.thread_name = "";
+    process_data.tasks.back().death_data.count = 138;
+    process_data.tasks.back().death_data.run_duration_sum = 132;
+    process_data.tasks.back().death_data.run_duration_max = 118;
+    process_data.tasks.back().death_data.run_duration_sample = 114;
+    process_data.tasks.back().death_data.queue_duration_sum = 109;
+    process_data.tasks.back().death_data.queue_duration_max = 106;
+    process_data.tasks.back().death_data.queue_duration_sample = 104;
+    process_data.tasks.back().death_thread_name = "";
 
     log.RecordProfilerData(process_data, content::PROCESS_TYPE_RENDERER);
     ASSERT_EQ(1, log.uma_proto().profiler_event_size());
     EXPECT_EQ(ProfilerEventProto::STARTUP_PROFILE,
               log.uma_proto().profiler_event(0).profile_type());
     EXPECT_EQ(ProfilerEventProto::WALL_CLOCK_TIME,
               log.uma_proto().profiler_event(0).time_source());
-    ASSERT_EQ(3, log.uma_proto().profiler_event(0).tracked_object_size());
+    ASSERT_EQ(4, log.uma_proto().profiler_event(0).tracked_object_size());
 
     const ProfilerEventProto::TrackedObject* tracked_object =
         &log.uma_proto().profiler_event(0).tracked_object(2);
-    EXPECT_EQ(GG_UINT64_C(2686523203278102732),
+    EXPECT_EQ(metrics::HashMetricName("file3"),
               tracked_object->source_file_name_hash());
-    EXPECT_EQ(GG_UINT64_C(5081672290546182009),
+    EXPECT_EQ(metrics::HashMetricName("function3"),
               tracked_object->source_function_name_hash());
     EXPECT_EQ(7331, tracked_object->source_line_number());
-    EXPECT_EQ(GG_UINT64_C(1518842999910132863),
+    EXPECT_EQ(metrics::HashMetricName("birth_thread*"),
               tracked_object->birth_thread_name_hash());
     EXPECT_EQ(137, tracked_object->exec_count());
     EXPECT_EQ(131, tracked_object->exec_time_total());
     EXPECT_EQ(113, tracked_object->exec_time_sampled());
     EXPECT_EQ(108, tracked_object->queue_time_total());
     EXPECT_EQ(103, tracked_object->queue_time_sampled());
-    EXPECT_EQ(GG_UINT64_C(2203893603452504755),
+    EXPECT_EQ(metrics::HashMetricName("death_thread*"),
               tracked_object->exec_thread_name_hash());
     EXPECT_EQ(1177U, tracked_object->process_id());
     EXPECT_EQ(ProfilerEventProto::TrackedObject::RENDERER,
               tracked_object->process_type());
+
+    tracked_object = &log.uma_proto().profiler_event(0).tracked_object(3);
+    EXPECT_EQ(metrics::HashMetricName(""),
+              tracked_object->source_file_name_hash());
+    EXPECT_EQ(metrics::HashMetricName(""),
+              tracked_object->source_function_name_hash());
+    EXPECT_EQ(7332, tracked_object->source_line_number());
+    EXPECT_EQ(metrics::HashMetricName(""),
+              tracked_object->birth_thread_name_hash());
+    EXPECT_EQ(138, tracked_object->exec_count());
+    EXPECT_EQ(132, tracked_object->exec_time_total());
+    EXPECT_EQ(114, tracked_object->exec_time_sampled());
+    EXPECT_EQ(109, tracked_object->queue_time_total());
+    EXPECT_EQ(104, tracked_object->queue_time_sampled());
+    EXPECT_EQ(metrics::HashMetricName(""),
+              tracked_object->exec_thread_name_hash());
+    EXPECT_EQ(ProfilerEventProto::TrackedObject::RENDERER,
+              tracked_object->process_type());
   }
 }
 
 #if defined(OS_CHROMEOS)
 TEST_F(MetricsLogTest, MultiProfileUserCount) {
   std::string user1("user1@example.com");
   std::string user2("user2@example.com");
   std::string user3("user3@example.com");
 
   // |scoped_enabler| takes over the lifetime of |user_manager|.
@@ skipping 121 matching lines @@
   PairedDevice device2 =
       log.system_profile().hardware().bluetooth().paired_device(1);
 
   EXPECT_EQ(FakeBluetoothDeviceClient::kConfirmPasskeyClass,
             device2.bluetooth_class());
   EXPECT_EQ(PairedDevice::DEVICE_PHONE, device2.type());
   EXPECT_EQ(0x207D74U, device2.vendor_prefix());
   EXPECT_EQ(PairedDevice::VENDOR_ID_UNKNOWN, device2.vendor_id_source());
 }
 #endif  // OS_CHROMEOS