public async Task TryGetItemAsync_UsesCache()
{
var repository = GetMockRepository();
var cachingRepository = new CachingWithRetriesRepository <TesTask>(repository.Object);
TesTask tesTask = null;
var success = await cachingRepository.TryGetItemAsync("tesTaskId1", item => tesTask = item);
var success2 = await cachingRepository.TryGetItemAsync("tesTaskId1", item => tesTask = item);
repository.Verify(mock => mock.TryGetItemAsync("tesTaskId1", It.IsAny <Action <TesTask> >()), Times.Once());
Assert.IsTrue(success);
Assert.IsTrue(success2);
}
public async Task TryGetItemAsync_IfItemNotFound_DoesNotSetCache()
{
var repository = GetMockRepository();
var cachingRepository = new CachingWithRetriesRepository <TesTask>(repository.Object);
TesTask tesTask = null;
var success = await cachingRepository.TryGetItemAsync("notFound", item => tesTask = item);
var success2 = await cachingRepository.TryGetItemAsync("notFound", item => tesTask = item);
repository.Verify(mock => mock.TryGetItemAsync("notFound", It.IsAny <Action <TesTask> >()), Times.Exactly(2));
Assert.IsFalse(success);
Assert.IsFalse(success2);
}
public async Task DeleteItemAsync_RemovesItemFromCache()
{
var repository = GetMockRepository();
var cachingRepository = new CachingWithRetriesRepository <TesTask>(repository.Object);
RepositoryItem <TesTask> repositoryItem = null;
Action <RepositoryItem <TesTask> > action = item => repositoryItem = item;
var success = await cachingRepository.TryGetItemAsync("tesTask1", action);
await cachingRepository.DeleteItemAsync("tesTask1");
var success2 = await cachingRepository.TryGetItemAsync("tesTask1", action);
repository.Verify(mock => mock.TryGetItemAsync("tesTask1", It.IsAny <Action <RepositoryItem <TesTask> > >()), Times.Exactly(2));
repository.Verify(mock => mock.DeleteItemAsync("tesTask1"), Times.Once());
Assert.AreEqual(success, success2);
}
public async Task TryGetItemAsync_ThrowsException_DoesNotSetCache()
{
SystemClock.SleepAsync = (_, __) => Task.FromResult(true);
SystemClock.Sleep = (_, __) => { };
var repository = GetMockRepository();
var cachingRepository = new CachingWithRetriesRepository <TesTask>(repository.Object);
TesTask tesTask = null;
await Assert.ThrowsExceptionAsync <Exception>(async() => await cachingRepository.TryGetItemAsync("throws", item => tesTask = item));
repository.Verify(mock => mock.TryGetItemAsync("throws", It.IsAny <Action <TesTask> >()), Times.Exactly(4));
}