Coverage Option Disables Expanding Classes, Icons about mcover

[misprintt]

I've seen this happen occasionally before - it's actually due to the munit 'run' command shutting down the temporary nekotools server before the images are loaded by the browser.

I also replicated it (occassionally) by adding a test that just threw an exception to example/coverage/03_MassiveUnitCoverage/text/ExampleTest.hx. Couldn't replicate it consistently though.

This is only an issue for AS3 because the swf runner relies on ExternalInterface to update the javascript result client in the browser, and synchronous calls via ExternalInteface are inconsistently slow.

On some of our larger projects the AS3 target can take about 3-4 times longer than the JavaScript to finish running because of this bottleneck. The more data being printed to the browser client (lots of failures, exceptions and coverage info), the bigger this lag can be.

For some reason this occasionally results in a race conditions issue and by the time the browser DOM updates and goes to load the icons the server has already shut down and the urls dont exist anymore.

If you open up the chrome/dev tools in the browser you will see the missing image urls.

The good news is that the data is all there, just the icons are missing - so you should be able to click to open the results on a test.

The other good news is that the next major release of munit removes the need for ExternalInterface entirely.

In the meantime I'll raise the issue in munit with a simple workaround that can be applied to the current version branch - moving all the icons into a single spritesheet that is loaded up front so they are already cached by the browser.

[misprintt]

Moved to munit massive-oss/MassiveUnit#32