public async void GetListAsync_ReturnsAllResources() { //Arrange var options = InMemoryUtils.ProduceFreshDbContextOptions(); using (var context = new ApplicationDbContext(options)) { context.Resources.Add(ResourceUtils.TestSet.First()); context.SaveChanges(); } //Act using (var context = new ApplicationDbContext(options)) { IBasicRepositoryAsync <Resource, int> repo = new ResourcesRepository(context); var result = await repo.GetListAsync(); //Assert Assert.NotEmpty(result); Assert.IsAssignableFrom <IEnumerable <Resource> >(result); } }