public async Task ExampleUsage1()
{
// Create an analytics system and fill it with feature usage events:
var analytics = CreateLocalAnalyticsSystem();
var t = new MockDateTimeV2();
IoC.inject.SetSingleton <DateTimeV2>(t);
string featureId = "feature1";
{
var startDate = DateTimeV2.ParseUtc("01.01.2011");
var endDate = DateTimeV2.ParseUtc("19.01.2011");
SimulateUsage(featureId, 100, t, startDate, endDate);
await AssertFeatureUsageDetected(analytics, featureId, 100);
}
t.mockUtcNow = DateTimeV2.ParseUtc("01.02.2011");
await TestAllRules1(analytics, featureId);
{ // Simulate more usage in the next 5 days:
var startDate = DateTimeV2.ParseUtc("20.01.2011");
var endDate = DateTimeV2.ParseUtc("25.01.2011");
SimulateUsage(featureId, 100, t, startDate, endDate);
await AssertFeatureUsageDetected(analytics, featureId, 200);
}
// Simulate a month without any usage:
t.mockUtcNow = DateTimeV2.ParseUtc("01.03.2011");
await TestAllRules2(analytics, featureId);
{ // Simulate that a usage notification is shown and test the related rule:
var notificationId = "notification1";
var daysAgo = 20;
t.mockUtcNow = DateTimeV2.ParseUtc("01.03.2011");
// Simulate that notification1 is shown to the user (e.g. by the usageRule system):
AppFlow.TrackEvent(EventConsts.catUsage, EventConsts.SHOW + "_" + notificationId);
t.mockUtcNow = DateTimeV2.ParseUtc("02.03.2011"); // Simulate a day passing by
UsageRule notificationMinXDaysOld = analytics.NewNotificationMinXDaysOldRule(notificationId, daysAgo);
Assert.False(await notificationMinXDaysOld.isTrue());
Assert.False(await notificationMinXDaysOld.IsNotificationMinXDaysOld(analytics));
t.mockUtcNow = DateTimeV2.ParseUtc("25.03.2011"); // Simulate more time passing by
Assert.True(await notificationMinXDaysOld.IsNotificationMinXDaysOld(analytics));
Assert.True(await notificationMinXDaysOld.isTrue());
// Simulate a second show of the notification:
AppFlow.TrackEvent(EventConsts.catUsage, EventConsts.SHOW + "_" + notificationId);
Assert.True(await notificationMinXDaysOld.IsNotificationMinXDaysOld(analytics));
Assert.True(await notificationMinXDaysOld.isTrue());
}
}
void SimulateUsage(string featureId, int evCount, MockDateTimeV2 t, DateTime start, DateTime end)
{
double s = start.ToUnixTimestampUtc();
double durationInMs = (end - start).TotalMilliseconds;
Assert.NotEqual(0, durationInMs);
for (int i = 0; i < evCount; i++)
{
double percent = i / (double)evCount;
Assert.InRange(percent, 0, 1);
t.mockUtcNow = DateTimeV2.NewDateTimeFromUnixTimestamp((long)(s + percent * durationInMs));
AppFlow.TrackEvent(featureId, EventConsts.START);
}
}