public async Task When_GettingAllStandardVersions_OfAGivenStandardId_Then_ReturnsAListOfThatStandardsVersions(int standardId, IEnumerable <Standard> standards) { _mockStandardRepository.Setup(s => s.GetStandardVersionsByLarsCode(standardId)).ReturnsAsync(standards); var result = await _standardService.GetStandardVersionsByLarsCode(standardId); Assert.IsInstanceOf <IEnumerable <Standard> >(result); Assert.AreEqual(result.Count(), standards.Count()); }