public async Task FindOlderThanAsync_ReturnsEmptySetWhenNoOlders()
{
await FeedTestData(_context, 20);
var service = new UrlService(_context);
var actual = await service.FindOlderThanAsync(DateTimeOffset.UtcNow.AddMinutes(-5));
Assert.Empty(actual);
}
public async Task FindOlderThanAsync_ReturnsOlderThanGivenOffset()
{
const int expectedCount = 10;
await FeedTestData(_context, expectedCount);
var service = new UrlService(_context);
var actual = await service.FindOlderThanAsync(DateTimeOffset.UtcNow);
Assert.NotEmpty(actual);
Assert.Equal(expectedCount, actual.Count());
Assert.DoesNotContain(actual, url => url == null);
}