Build/Test Tools: Trim the PHPUnit matrix to boundary PHP versions on the 7.0 branch - #12720
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Build/Test Tools: Trim the PHPUnit matrix to boundary PHP versions on the 7.0 branch#12720lancewillett wants to merge 1 commit into
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Reduce the PHPUnit matrix on the active branch to the highest and lowest supported version of each major PHP branch, matching the boundary testing already used on older branches. Version-specific failures cluster at the boundaries, so the intermediate minor versions add job count without adding coverage. This is especially useful when preparing backports across multiple branches, where the full matrix multiplies queued jobs and floods the shared runner pool during a release. Props lance.willett@automattic.com. See #65736.
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adimoldovan
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… the 7.0 branch. This reduces the number of jobs that get triggered for each push or PR to the branch while retaining testing on the highest and lowest supported versions of PHP. Developed in #12720 Props lancewillett, adrianmoldovanwp See #65736, #64083 git-svn-id: https://develop.svn.wordpress.org/branches/7.0@62856 602fd350-edb4-49c9-b593-d223f7449a82
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… the 7.0 branch. This reduces the number of jobs that get triggered for each push or PR to the branch while retaining testing on the highest and lowest supported versions of PHP. Developed in WordPress/wordpress-develop#12720 Props lancewillett, adrianmoldovanwp See #65736, #64083 Built from https://develop.svn.wordpress.org/branches/7.0@62856 git-svn-id: http://core.svn.wordpress.org/branches/7.0@62136 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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See also: #12726 6.8 runs were still peaking at ~198, this takes that version's runs down to ~99. |
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What
Trims the PHPUnit test matrix on the 7.0 branch to boundary PHP versions:
7.4,8.0, and8.5in place of the full seven-minor list, acrosstest-with-mysql,test-with-mariadb, andtest-innovation-releases.Why
This applies to the 7.0 branch the same boundary trim #64083 used on older branches (Trac #65736 tracks extending it to the current branches). The immediate benefit is at release time. When many 7.0.x backports land together, the full matrix floods the shared runner pool. Tests get cancelled, or the release ships before they finish.
Impact
Base PHPUnit combinations drop from ~168 to ~72 per run, roughly a 55% cut, before the unchanged
include:jobs.Scope
PHP axis only. The 7.0 branch does not run the weekly scheduled full matrix. Scheduled workflows fire only from the default branch. So this is a plain trim, not the conditional used on trunk. Database versions, multisite, and memcached are untouched.
Trac ticket: Core-65736
Use of AI Tools
AI assistance: Yes
Tool(s): Claude Code
Model(s): Opus 4.8
Used for: Applying the boundary-trim approach from the existing older-branch precedent. Verified manually.