[joss][tests] Add test cases for listed functionality

[sneakers-the-rat]

Part of: https://github.com/openjournals/joss-reviews/issues/6336

Ensure tests cover functionalities listed in /doc.html

• [x] Load and navigate data
• [x] Adjust threshold value - i'm not seeing adjusting the threshold per se, but I do see changing threshold settings like changing threshold direction. would be good to add that & compare to known output.
• [x] Select direction of thresholding
• [x] Move control point
• [x] Add control points
• [x] Select a control point
  • [x] Adjust threshold slider
• [x] Adjust mask opacity - not sure how you test the actual appearance of opacity, but should test get/set value
• [x] Adjust MRI contrast and brightness - same as ^
• [x] 3D render - the test for opening the page works for me :)
• [x] View threshold value
• [x] Saving
  • [x] Control points
  • [x] Mask
• [x] Loading Control points

I think most of this could be done by having a known-good mask for the demo input data at 2 or 3 configurations of points/thresholds. I think you may want to refactor into a tests directory to be able to group input/output data separately from the img directory, which seems to be the public img directory used on the site.

Authors lmk which of these are impossible/etc. i'm just recreating the list from /doc.html :)

[katjaq]

Thank you for your suggestions @sneakers-the-rat ! All the tests have now been implemented and merged in the PR mentioned above #29 . Thank you @ntraut !

We will let you check it out and look forward to your reply or approval :)

[sneakers-the-rat]

best test description of all time. shouldn't all code? <3 https://github.com/neuroanatomy/thresholdmann/blob/9861286089b7b0ec9b89b77a5b50971820613440/test.mjs#L38

[sneakers-the-rat]

Looks great! thanks for working on this. hopefully that helps with contribs and gives you one less thing to lose sleep over in the future of this tool :)