public void GetSpecificationSummaryById_WhenGivenANullSpecificationId_ShouldThrowAnException()
{
// Arrange
ISpecificationsApiClientProxy mockApiClient = Substitute.For <ISpecificationsApiClientProxy>();
// Act
SpecificationsRepository specificationRepo = new SpecificationsRepository(mockApiClient);
Action getSpecificationBySummaryIdCall = () => { specificationRepo.GetSpecificationSummaryById(null); };
// Assert
getSpecificationBySummaryIdCall.Should().ThrowExactly <ArgumentNullException>();
}
public void GetSpecificationSummaryById_WhenGivenAValidSpecificationId_ShouldCallApiClient()
{
// Arrange
ISpecificationsApiClientProxy mockApiClient = Substitute.For <ISpecificationsApiClientProxy>();
const string specificationId = "validSpecId";
// Act
SpecificationsRepository specificationRepo = new SpecificationsRepository(mockApiClient);
specificationRepo.GetSpecificationSummaryById(specificationId).Wait();
// Assert
mockApiClient.Received(1).GetAsync <SpecificationSummary>(Arg.Any <string>());
}