public async Task TestThatStorageExceptionsAreRetried()
{
var fetchUpdateSessionStatusStub = StubsUtils.Sequence <Func <Task <UpdateSessionStatus> > >()
.Once(() => AsyncUtils.AsyncTaskThatThrows <UpdateSessionStatus>(new StorageException()))
.Once(() => Task.FromResult(new UpdateSessionStatus(Enumerable.Empty <UpdateDomainEntity>(), null, null)));
IUpdateSessionTable updateSessionTableStub = new StubIUpdateSessionTable()
.FetchUpdateSessionStatus((superClusterId) => fetchUpdateSessionStatusStub.Next())
.TryExecuteTransaction(transaction => Task.FromResult(true))
.DeleteInstanceEntity((superClusterId, instanceId) => Task.FromResult(true))
.GetActiveUpdateDomain((superClusterId) => Task.FromResult("1"));
ContainerBuilder builder = AzureStorageUpdateSessionDiModule.RegisterTypes("superClusterId", "superClusterId",
"instanceId", "1", EmulatorConnectionString, Ttl);
builder.RegisterInstance(updateSessionTableStub);
IUpdateSessionManager updateSessionManager = new AzureStorageUpdateSessionDiModule(builder.Build())
.UpdateSessionManager;
Assert.True(await updateSessionManager.TryStartUpdateSession());
await updateSessionManager.EndUpdateSession();
Assert.Equal(2, fetchUpdateSessionStatusStub.CallCount);
}