doc: clarify concurrency model of test runner#47642
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nodejs-github-bot merged 1 commit intonodejs:mainfrom Apr 24, 2023
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doc: clarify concurrency model of test runner#47642nodejs-github-bot merged 1 commit intonodejs:mainfrom
nodejs-github-bot merged 1 commit intonodejs:mainfrom
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| properties are supported: | ||
| * `concurrency` {number|boolean} If a number is provided, | ||
| then that many tests would run in parallel. | ||
| then that many tests would run in parallel within the application thread. |
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Maybe this adds clarity?
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| then that many tests would run in parallel within the application thread. | |
| then that many tests would run in parallel within the current thread, similar to a set of promises awaited by `Promise.allSettled`. |
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I don't think using current vs application does a great job at clarifying things. Why do you think it's important to call out Promise.allSettled vs anything else? I don't think it's helpful, it might even be a bit confusing given that the code doesn't use Promise.allSettled.
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I’m trying to get across that it’s “in parallel” only in the sense that there are several async resources running within the current thread and process, as opposed to “true” parallelism from using multiple threads/processes.
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I think #47642 (review) is a better suggestion, I agree that "parallel" is simply not a great word to describe what happens here, but let's take that discussion to another PR/issue.
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The documentation appears to still be wrong w.r.t. the meaning of the concurrency option of the test() function. The implementation appears to default to Infinity when the option is set to true. Is that intended or a good idea? I don't know. It certainly makes more sense than what the documentation says (which is basing the number of concurrent tasks within a single thread on the number of CPU cores). This changes the documentation to hopefully match the implementation and adds a test that rules out the (rather arbitrary) behavior described in the documentation. Refs: nodejs#47365 Refs: nodejs#47642
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Refs: nodejs#47365 PR-URL: nodejs#47642 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
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Refs: nodejs#47365 PR-URL: nodejs#47642 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
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The documentation appears to still be wrong w.r.t. the meaning of the concurrency option of the test() function. The implementation appears to default to Infinity when the option is set to true. Is that intended or a good idea? I don't know. It certainly makes more sense than what the documentation says (which is basing the number of concurrent tasks within a single thread on the number of CPU cores). This changes the documentation to hopefully match the implementation and adds a test that rules out the (rather arbitrary) behavior described in the documentation. Refs: #47365 Refs: #47642 PR-URL: #47734 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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Apr 29, 2023
Refs: nodejs#47365 PR-URL: nodejs#47642 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
yjl9903
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Apr 29, 2023
The documentation appears to still be wrong w.r.t. the meaning of the concurrency option of the test() function. The implementation appears to default to Infinity when the option is set to true. Is that intended or a good idea? I don't know. It certainly makes more sense than what the documentation says (which is basing the number of concurrent tasks within a single thread on the number of CPU cores). This changes the documentation to hopefully match the implementation and adds a test that rules out the (rather arbitrary) behavior described in the documentation. Refs: nodejs#47365 Refs: nodejs#47642 PR-URL: nodejs#47734 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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The documentation appears to still be wrong w.r.t. the meaning of the concurrency option of the test() function. The implementation appears to default to Infinity when the option is set to true. Is that intended or a good idea? I don't know. It certainly makes more sense than what the documentation says (which is basing the number of concurrent tasks within a single thread on the number of CPU cores). This changes the documentation to hopefully match the implementation and adds a test that rules out the (rather arbitrary) behavior described in the documentation. Refs: #47365 Refs: #47642 PR-URL: #47734 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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The documentation appears to still be wrong w.r.t. the meaning of the concurrency option of the test() function. The implementation appears to default to Infinity when the option is set to true. Is that intended or a good idea? I don't know. It certainly makes more sense than what the documentation says (which is basing the number of concurrent tasks within a single thread on the number of CPU cores). This changes the documentation to hopefully match the implementation and adds a test that rules out the (rather arbitrary) behavior described in the documentation. Refs: #47365 Refs: #47642 PR-URL: #47734 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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The documentation appears to still be wrong w.r.t. the meaning of the concurrency option of the test() function. The implementation appears to default to Infinity when the option is set to true. Is that intended or a good idea? I don't know. It certainly makes more sense than what the documentation says (which is basing the number of concurrent tasks within a single thread on the number of CPU cores). This changes the documentation to hopefully match the implementation and adds a test that rules out the (rather arbitrary) behavior described in the documentation. Refs: #47365 Refs: #47642 PR-URL: #47734 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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Refs: nodejs#47365 PR-URL: nodejs#47642 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
MoLow
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Jul 6, 2023
The documentation appears to still be wrong w.r.t. the meaning of the concurrency option of the test() function. The implementation appears to default to Infinity when the option is set to true. Is that intended or a good idea? I don't know. It certainly makes more sense than what the documentation says (which is basing the number of concurrent tasks within a single thread on the number of CPU cores). This changes the documentation to hopefully match the implementation and adds a test that rules out the (rather arbitrary) behavior described in the documentation. Refs: nodejs#47365 Refs: nodejs#47642 PR-URL: nodejs#47734 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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This is based on my understanding of how it works, but I didn't actually test this or compare it with the implementation, so please review carefully @nodejs/test_runner.
Refs: #47365