[Feature] Expect exception

[AlexInCube]

I want to write tests, that must test explicit errors. For example, i am reading file and file that i read is malformed, so my parser throw error.

Because this library is inspired by Jest.js, i expect method like this: https://jestjs.io/docs/expect#tothrowerror

[DAndrewBox]

Just to be sure about this one, this should be based on the throw built-in functionality of GameMaker, or it is a custom exception?

I ask because I can make a .toThrow([error]) method using any of those, but want to be sure what is your specific use case.

[AlexInCube]

Base this on throw functionaly of Game Maker.

My case is:

if (maxListeners != -1 && array_length(_event) > maxListeners) __EventicaError($"Max listeners for event \"{_namespace}\" is exceed {maxListeners} listeners, propably you have memory leak?")      

function __EventicaError(){
    var _string = "eventica " + string(__EVENTICA_VERSION) + ":\n";
    var _i = 0;
    repeat(argument_count)
    {
        _string += string(argument[_i]);
        ++_i;
    }
    
    show_error(_string + "\n ", true);
}

P.S. You are used localhost link for throw, change your message.

[DAndrewBox]

Since show_error doesn't really change anything inside GM that could be called to check if an error was thrown, I think toThrow() might not be the best solution to implement, but, what I can do is to implement the toHaveBeenCalled(), toHaveBeenCalledWith(), toHaveBeenCalledTimes(), and more set of functions to check if __EventicaError was called on that function.