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[Python] Merge small PyROOT pythonization tests to cut process overhead - #22969
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guitargeek merged 1 commit intoJul 31, 2026
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Test Results 23 files 23 suites 3d 15h 52m 47s ⏱️ Results for commit f189142. ♻️ This comment has been updated with latest results. |
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Each test in bindings/pyroot/pythonizations/test runs in its own Python process, so every one pays ~2 s of interpreter startup + import ROOT before a single assertion runs. For the many tiny per-class tests that overhead is essentially the whole runtime. Merge the small, overhead-bound tests by class family into single modules (unittest discovery picks up all TestCase classes in a file). This takes the directory from 78 to 51 registered tests with no loss of coverage.
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Each test in bindings/pyroot/pythonizations/test runs in its own Python process, so every one pays ~2 s of interpreter startup + import ROOT before a single assertion runs. For the many tiny per-class tests that overhead is essentially the whole runtime.
Merge the small, overhead-bound tests by class family into single modules (unittest discovery picks up all TestCase classes in a file). This takes the directory from 78 to 51 registered tests with no loss of coverage.
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