public async Task When_GettingAllStandardVersions_Then_ReturnsListOfStandards(IEnumerable <Standard> standards)
        {
            _mockStandardRepository.Setup(s => s.GetAllStandards()).ReturnsAsync(standards);

            var result = await _standardService.GetAllStandardVersions();

            Assert.IsInstanceOf <IEnumerable <Standard> >(result);
            Assert.AreEqual(result.Count(), standards.Count());
        }