public void Test_UserUnfollowUserRequest_Validate_Throws_Exceptions()
{
// username is null
var request = new UserUnfollowUserRequest();
Action act = () => request.Validate();
act.Should().Throw <ArgumentNullException>();
// empty username
request = new UserUnfollowUserRequest {
Username = string.Empty
};
act = () => request.Validate();
act.Should().Throw <ArgumentException>();
// username with spaces
request = new UserUnfollowUserRequest {
Username = "******"
};
act = () => request.Validate();
act.Should().Throw <ArgumentException>();
}