assert

Assert.cyan

package metaobjectTest


@doc{*
    Macro 'assert' has the following syntax:
         assert expr;
    'assert' is a macro keyword and 'expr' a Cyan expression. A ';'
    should end the macro call. 
    At runtime, if 'expr' is false, an error message is issued. 
    The program is NOT terminated.

*}
object Assert

    func run {
        assert "This message should be printed" == "";
        assert "Do not print this" size > 10;
        assert 0 == 0;
        assert " "*3 == "   ";
    }

end