public async void Get_ShouldReturnNullBecauseRecordNotFound()
{
var mock = new ServiceMockFacade <ICallService, ICallRepository>();
mock.RepositoryMock.Setup(x => x.Get(It.IsAny <int>())).Returns(Task.FromResult <Call>(null));
var service = new CallService(mock.LoggerMock.Object,
mock.MediatorMock.Object,
mock.RepositoryMock.Object,
mock.ModelValidatorMockFactory.CallModelValidatorMock.Object,
mock.DALMapperMockFactory.DALCallMapperMock,
mock.DALMapperMockFactory.DALCallAssignmentMapperMock,
mock.DALMapperMockFactory.DALNoteMapperMock);
ApiCallServerResponseModel response = await service.Get(default(int));
response.Should().BeNull();
mock.RepositoryMock.Verify(x => x.Get(It.IsAny <int>()));
}