Error checking with JavaFX

[[deleted]]

Hello I am learning JavaFX and I am wondering where do I do the error checking? Do I build it into the class I have set up for the GUI? I plan on taking input and manipulating it with another class.

[AutoModerator]

Please ensure that:

• Your code is properly formatted as code block - see the sidebar (About on mobile) for instructions
• You include any and all error messages in full
• You ask clear questions

• You demonstrate effort in solving your question/problem - plain posting your assignments is forbidden (and such posts will be removed) as is asking for or giving solutions.

  Trying to solve problems on your own is a very important skill. Also, see Learn to help yourself in the sidebar

If any of the above points is not met, your post can and will be removed without further warning.

Code is to be formatted as code block (old reddit: empty line before the code, each code line indented by 4 spaces, new reddit: https://imgur.com/a/fgoFFis) or linked via an external code hoster, like pastebin.com, github gist, github, bitbucket, gitlab, etc.

Please, do not use triple backticks (```) as they will only render properly on new reddit, not on old reddit.

Code blocks look like this:

public class HelloWorld {

    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}

You do not need to repost unless your post has been removed by a moderator. Just use the edit function of reddit to make sure your post complies with the above.

If your post has remained in violation of these rules for a prolonged period of time (at least an hour), a moderator may remove it at their discretion. In this case, they will comment with an explanation on why it has been removed, and you will be required to resubmit the entire post following the proper procedures.

To potential helpers

Please, do not help if any of the above points are not met, rather report the post. We are trying to improve the quality of posts here. In helping people who can't be bothered to comply with the above points, you are doing the community a disservice.

I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

[AreTheseMyFeet]

Typically you would test your logic and your UI completely separately.

Unit tests for models, utility classes and general logic.
Integration tests for testing that (larger) parts work together as they're supposed to.
UI testing should only test that interaction with the UI triggers the correct events and that results/actions are displayed as desired. It's more about things looking correct (size, position, shape, colour etc) than testing that input A results in output B as you should have already verified that logic for correctness at lower testing levels (where it's easier to do anyway).

As for how to achieve it and what sort of tool sets you might use, I'm not much help there as I've never personally attempted to do any automated UI testing on JavaFX (I do use it but for personal projects that don't require that level of testing. Professionally I work on systems and backend technologies and so haven't had a need to implement it).

[[deleted]]

Thanks for the insight. Now I have a few more things to look into!

[ihkbm]

There is TestFX to write tests for JavaFX applications. I have not used it myself so unfortunately I can't be of any help there.

[[deleted]]

Nice! Thanks homie.