public void AccountClientCreateAccountReturnsInt() { // Arrange var account = new Account() { AccountKey = 123, AccountCode = "TEST123", AccountName = "Test Account", AccountDesc = "Test Account Description", AccountDBA = "Test Account DBA" }; var mockAccountClient = new Mock <IAccountService>(); mockAccountClient.Setup(m => m.CreateAccount(It.IsAny <Account>())).Returns(123); // SUT var sut = new AccountClient(EndpointConfiguration.NetTcpBinding_IAccountService); // Act var ret_val = sut.CreateAccount(account); // Assert Assert.Equal(123, ret_val); }