public async Task TestThatNotAllExceptionsAreRetried()
{
string appId = "appId";
var sequence = StubsUtils.Sequence<StubIUpdateBlobFactory.TryLockUpdateBlob_String_Delegate>()
.Twice(id => AsyncUtils.AsyncTaskThatThrows<IUpdateBlob>(new Exception()));
var updateBlobFactoryStub = new StubIUpdateBlobFactory()
.TryLockUpdateBlob(id => sequence.Next(appId));
UpdateBlobFactoryRetryLockDecorator retryDecorator =
new UpdateBlobFactoryRetryLockDecorator(updateBlobFactoryStub, new FixedInterval(1, TimeSpan.Zero));
await
Assert.ThrowsAsync<Exception>(async () => await retryDecorator.TryLockUpdateBlob(appId));
}
public async Task TestSuccessfullRetry()
{
string appId = "appId";
IUpdateBlob updateBlob = new StubIUpdateBlob();
var sequence = StubsUtils.Sequence<StubIUpdateBlobFactory.TryLockUpdateBlob_String_Delegate>()
.Twice(id => AsyncUtils.AsyncTaskThatThrows<IUpdateBlob>(new UpdateBlobUnavailableException()))
.Once(id => AsyncUtils.AsyncTaskWithResult(updateBlob));
var updateBlobFactoryStub = new StubIUpdateBlobFactory()
.TryLockUpdateBlob(id => sequence.Next(appId));
UpdateBlobFactoryRetryLockDecorator retryDecorator =
new UpdateBlobFactoryRetryLockDecorator(updateBlobFactoryStub,
new FixedInterval(2, TimeSpan.Zero));
Assert.Equal(updateBlob, await retryDecorator.TryLockUpdateBlob(appId));
}
public async Task TestThatExceptionIsThrownIfMaxRetryCountIsReached()
{
string appId = "appId";
IUpdateBlob updateBlob = new StubIUpdateBlob();
var sequence = StubsUtils.Sequence<StubIUpdateBlobFactory.TryLockUpdateBlob_String_Delegate>()
.Twice(id => AsyncUtils.AsyncTaskThatThrows<IUpdateBlob>(new UpdateBlobUnavailableException()))
.Once(id => AsyncUtils.AsyncTaskWithResult(updateBlob));
var updateBlobFactoryStub = new StubIUpdateBlobFactory()
.TryLockUpdateBlob(id => sequence.Next(appId));
UpdateBlobFactoryRetryLockDecorator retryDecorator =
new UpdateBlobFactoryRetryLockDecorator(updateBlobFactoryStub, new FixedInterval(1, TimeSpan.Zero));
await
Assert.ThrowsAsync<UpdateBlobUnavailableException>(
async () => await retryDecorator.TryLockUpdateBlob(appId));
}
