public async Task WhenTheSubscriptionExists_ItShouldDeleteTheSubscription()
{
await this.DatabaseTestAsync(async testDatabase =>
{
this.target = new UnsubscribeFromChannelDbStatement(testDatabase, this.requestSnapshot);
await this.CreateDataAsync(testDatabase);
await testDatabase.TakeSnapshotAsync();
await this.target.ExecuteAsync(UserId, Subscriptions[0].ChannelId);
var deletion = new ChannelSubscription(
Subscriptions[0].ChannelId.Value,
null,
UserId.Value,
null,
Subscriptions[0].AcceptedPrice.Value,
PriceLastAcceptedDate,
SubscriptionStartDate);
return(new ExpectedSideEffects {
Delete = deletion
});
});
}
public async Task ItShouldRequestSnapshotAfterUpdate()
{
await this.DatabaseTestAsync(async testDatabase =>
{
var trackingDatabase = new TrackingConnectionFactory(testDatabase);
this.target = new UnsubscribeFromChannelDbStatement(trackingDatabase, this.requestSnapshot);
await this.CreateDataAsync(testDatabase);
await testDatabase.TakeSnapshotAsync();
this.requestSnapshot.VerifyConnectionDisposed(trackingDatabase);
await this.target.ExecuteAsync(UserId, Subscriptions[0].ChannelId);
this.requestSnapshot.VerifyCalledWith(UserId, SnapshotType.SubscriberChannels);
var deletion = new ChannelSubscription(
Subscriptions[0].ChannelId.Value,
null,
UserId.Value,
null,
Subscriptions[0].AcceptedPrice.Value,
PriceLastAcceptedDate,
SubscriptionStartDate);
return(new ExpectedSideEffects {
Delete = deletion
});
});
}
public async Task WhenTheUserDoesNotExist_ItShouldDoNothing()
{
await this.DatabaseTestAsync(async testDatabase =>
{
this.target = new UnsubscribeFromChannelDbStatement(testDatabase, this.requestSnapshot);
await this.CreateDataAsync(testDatabase);
await testDatabase.TakeSnapshotAsync();
await this.target.ExecuteAsync(new UserId(Guid.NewGuid()), Subscriptions[0].ChannelId);
return(ExpectedSideEffects.None);
});
}
public async Task ItShouldBeIdempotent()
{
await this.DatabaseTestAsync(async testDatabase =>
{
this.target = new UnsubscribeFromChannelDbStatement(testDatabase, this.requestSnapshot);
await this.CreateDataAsync(testDatabase);
await this.target.ExecuteAsync(UserId, Subscriptions[0].ChannelId);
await testDatabase.TakeSnapshotAsync();
await this.target.ExecuteAsync(UserId, Subscriptions[0].ChannelId);
return(ExpectedSideEffects.None);
});
}
public async Task ItShouldNotUpdateIfSnapshotFails()
{
await this.DatabaseTestAsync(async testDatabase =>
{
this.target = new UnsubscribeFromChannelDbStatement(testDatabase, this.requestSnapshot);
await this.CreateDataAsync(testDatabase);
await testDatabase.TakeSnapshotAsync();
this.requestSnapshot.ThrowException();
await ExpectedException.AssertExceptionAsync <SnapshotException>(
() => this.target.ExecuteAsync(UserId, Subscriptions[0].ChannelId));
return(ExpectedSideEffects.TransactionAborted);
});
}
public void TestInitialize()
{
this.requestSnapshot = new MockRequestSnapshotService();
this.target = new UnsubscribeFromChannelDbStatement(new Mock <IFifthweekDbConnectionFactory>(MockBehavior.Strict).Object, this.requestSnapshot);
}