Make test-worker-message-port-infinite-message-loop.js fail when the port1.on('message' callback isn't called#59885
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nodejs-github-bot merged 1 commit intonodejs:mainfrom Oct 1, 2025
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Add assertion to verify that the MessagePort's message event is actually emitted in test-worker-message-port-infinite-message-loop.js. Previously, the test could pass even if the event was not fired.
port1.on('message' callback isn't calledtest-worker-message-port-infinite-message-loop.js fail when the port1.on('message' callback isn't called
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## main #59885 +/- ##
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Branches 39806 39802 -4
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- Misses 16218 16267 +49
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anonrig
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Sep 14, 2025
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jasnell
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Sep 15, 2025
| common.mustCall(() => { | ||
| assert(count > 0, 'count should be greater than 0'); | ||
| }) | ||
| ); |
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I think the more correct way to do this would be to wrap the callback to the port1.on in a common.mustCallAtLeast(...)?
addaleax
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Oct 1, 2025
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Just going to go ahead with this since it's strictly an improvement
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Add assertion to verify that the MessagePort's message event is actually emitted in test-worker-message-port-infinite-message-loop.js. Previously, the test could pass even if the event was not fired. PR-URL: #59885 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>
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The test
test-worker-message-port-infinite-message-loop.jscurrently passes if the MessagePort does not emit any messages.If the message port does not emit a
"message"event then the infinite message loop would never occur, therefore it's probably not the intent of the test.Context: this test was incorrectly passing in Bun when we currently do not start the MessagePort until the
startmethod is called. This test continues to pass in Node and now correctly fails in Bun (we will fix this later).