public void ShouldAddHostname(string hostname,
                                      [Frozen] Mock <IApplicationConfiguration> applicationConfiguration,
                                      [Frozen] Mock <IAppHarborClient> client,
                                      AddHostnameCommand command, string applicationId)
        {
            applicationConfiguration.Setup(x => x.GetApplicationId()).Returns(applicationId);

            command.Execute(new string[] { hostname });

            client.Verify(x => x.CreateHostname(applicationId, hostname));
        }
 public void ShouldThrowIfNoArguments(AddHostnameCommand command)
 {
     Assert.Throws <CommandException>(() => command.Execute(new string[0]));
 }