[Smart Lock] Measure clicks on the lock icon during Easy Unlock's trial run.

chrome/browser/signin/easy_unlock_screenlock_state_handler_unittest.cc

Index: chrome/browser/signin/easy_unlock_screenlock_state_handler_unittest.cc
diff --git a/chrome/browser/signin/easy_unlock_screenlock_state_handler_unittest.cc b/chrome/browser/signin/easy_unlock_screenlock_state_handler_unittest.cc
index 1a72f764671401be55025c3d69765cbeb920722b..75aa1b298b488bdcbe4554b236d1a3ea3a3f99f7 100644
--- a/chrome/browser/signin/easy_unlock_screenlock_state_handler_unittest.cc
+++ b/chrome/browser/signin/easy_unlock_screenlock_state_handler_unittest.cc
@@ -2,13 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "chrome/browser/signin/easy_unlock_screenlock_state_handler.h"
+
 #include <string>
 #include <vector>
 
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
-#include "chrome/browser/signin/easy_unlock_screenlock_state_handler.h"
+#include "base/test/histogram_tester.h"
+#include "chrome/browser/signin/easy_unlock_metrics.h"
 #include "chrome/browser/signin/easy_unlock_service.h"
 #include "chrome/browser/signin/screenlock_bridge.h"
 #include "chrome/grit/generated_resources.h"
@@ -751,4 +754,26 @@ TEST_F(EasyUnlockScreenlockStateHandlerTest, NoOverrideOnlineSignin) {
   }
 }
 
+TEST_F(EasyUnlockScreenlockStateHandlerTest, TrialRunMetrics) {
+  base::HistogramTester histogram_tester;
+
+  // Simulate the user clicking on the lock icon twice outside of a trial run.
+  // No trial run metrics should be recorded.
+  state_handler_->RecordClickOnLockIcon();
+  state_handler_->RecordClickOnLockIcon();
+  histogram_tester.ExpectTotalCount("EasyUnlock.TrialRun.Events", 0);
+
+  // Simulate the user clicking on the lock icon three times during a trial run.
+  state_handler_->SetTrialRun();
+  state_handler_->RecordClickOnLockIcon();
+  state_handler_->RecordClickOnLockIcon();
+  state_handler_->RecordClickOnLockIcon();
+  histogram_tester.ExpectTotalCount("EasyUnlock.TrialRun.Events", 4);
+  histogram_tester.ExpectBucketCount("EasyUnlock.TrialRun.Events",
+                                     EASY_UNLOCK_TRIAL_RUN_EVENT_LAUNCHED, 1);
+  histogram_tester.ExpectBucketCount(
+      "EasyUnlock.TrialRun.Events",
+      EASY_UNLOCK_TRIAL_RUN_EVENT_CLICKED_LOCK_ICON, 3);
+}
+
 }  // namespace