public void Should_get_policies_by_user_name() { // Arrange Client client = new Client { Id = "2", Email = "*****@*****.**", Name = "Mike" }; _clientService.Expect(e => e.GetClientByName(Arg <string> .Is.Anything)).Return(client); _mockyService.Expect(e => e.GetPolicies()).Return(GetFakePolicies()); // Act.- IEnumerable <Policy> val = _target.GetByUserName("Mike"); // Assert.- Assert.IsTrue(val.Count() == 2); }