components/metrics/daily_event_unittest.cc

   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/daily_event.h"
   6
   7 #include "base/prefs/testing_pref_service.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace metrics {
  11
  12 namespace {
  13
  14 const char kTestPrefName[] = "TestPref";
  15 const char kTestMetricName[] = "TestMetric";
  16
  17 class TestDailyObserver : public DailyEvent::Observer {
  18  public:
  19   TestDailyObserver() : fired_(false) {}
  20
  21   bool fired() const { return fired_; }
  22
  23   void OnDailyEvent() override { fired_ = true; }
  24
  25   void Reset() {
  26     fired_ = false;
  27   }
  28
  29  private:
  30   // True if this event has been observed.
  31   bool fired_;
  32
  33   DISALLOW_COPY_AND_ASSIGN(TestDailyObserver);
  34 };
  35
  36 class DailyEventTest : public testing::Test {
  37  public:
  38   DailyEventTest() : event_(&prefs_, kTestPrefName, kTestMetricName) {
  39     DailyEvent::RegisterPref(prefs_.registry(), kTestPrefName);
  40     observer_ = new TestDailyObserver();
  41     event_.AddObserver(make_scoped_ptr(observer_));
  42   }
  43
  44  protected:
  45   TestingPrefServiceSimple prefs_;
  46   TestDailyObserver* observer_;
  47   DailyEvent event_;
  48
  49  private:
  50   DISALLOW_COPY_AND_ASSIGN(DailyEventTest);
  51 };
  52
  53 }  // namespace
  54
  55 // The event should fire if the preference is not available.
  56 TEST_F(DailyEventTest, TestNewFires) {
  57   event_.CheckInterval();
  58   EXPECT_TRUE(observer_->fired());
  59 }
  60
  61 // The event should fire if the preference is more than a day old.
  62 TEST_F(DailyEventTest, TestOldFires) {
  63   base::Time last_time = base::Time::Now() - base::TimeDelta::FromHours(25);
  64   prefs_.SetInt64(kTestPrefName, last_time.ToInternalValue());
  65   event_.CheckInterval();
  66   EXPECT_TRUE(observer_->fired());
  67 }
  68
  69 // The event should fire if the preference is more than a day in the future.
  70 TEST_F(DailyEventTest, TestFutureFires) {
  71   base::Time last_time = base::Time::Now() + base::TimeDelta::FromHours(25);
  72   prefs_.SetInt64(kTestPrefName, last_time.ToInternalValue());
  73   event_.CheckInterval();
  74   EXPECT_TRUE(observer_->fired());
  75 }
  76
  77 // The event should not fire if the preference is more recent than a day.
  78 TEST_F(DailyEventTest, TestRecentNotFired) {
  79   base::Time last_time = base::Time::Now() - base::TimeDelta::FromMinutes(2);
  80   prefs_.SetInt64(kTestPrefName, last_time.ToInternalValue());
  81   event_.CheckInterval();
  82   EXPECT_FALSE(observer_->fired());
  83 }
  84
  85 // The event should not fire if the preference is less than a day in the future.
  86 TEST_F(DailyEventTest, TestSoonNotFired) {
  87   base::Time last_time = base::Time::Now() + base::TimeDelta::FromMinutes(2);
  88   prefs_.SetInt64(kTestPrefName, last_time.ToInternalValue());
  89   event_.CheckInterval();
  90   EXPECT_FALSE(observer_->fired());
  91 }
  92
  93 }  // namespace metrics