public void ShouldThrowIfUserIsAlreadyLoggedIn([Frozen]Mock<IAccessTokenConfiguration> accessTokenConfigurationMock, LoginUserCommand loginCommand)
{
accessTokenConfigurationMock.Setup(x => x.GetAccessToken()).Returns("foo");
var exception = Assert.Throws<CommandException>(() => loginCommand.Execute(new string[] { }));
Assert.Equal("You're already logged in. You need to log out (\"logout\") before you can log in again.", exception.Message);
}
