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Prevent Karma from timing out when an assertion fails on a VTU wrapper #696

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@matthew-white matthew-white commented Jan 12, 2023

Sometimes, an assertion failure will cause Karma to time out and exit, which can add friction to testing. I thought it was maybe a bug with Should.js, but I think it's something more specific, that Should.js is doing something that Vue or Vue Test Utils doesn't like. These timeouts seem to happen when an assertion fails on a Vue Test Utils wrapper specifically (or an array of wrappers). I'm not quite sure why that is (maybe Should.js is traversing the wrapper, and the wrapper contains a recursive cycle?). And my solution here still needs more validation. But so far, it looks like this change prevents these timeouts.

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We're going to be replacing Should.js with Chai as part of #671. This issue doesn't seem to be a problem with Chai. If an assertion fails on a Vue Test Utils wrapper, the test doesn't time out, and the error message is what I'd expect.

@matthew-white matthew-white deleted the clean-fail branch May 24, 2024 21:45
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