[mmu probing] pr07.test: Add comprehensive unit tests for probe framework#22545

Merged

StormLiangMS merged 11 commits intosonic-net:masterfrom

XuChen-MSFT:xuchen3/mmu_probe/pr07-unit-tests

Mar 25, 2026

Commits on Mar 24, 2026

test: Add comprehensive unit tests for probe framework
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fix pre-commit errors
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test: add unit tests for bug fix coverage (10 new cases)

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test: add UTs for anti-oscillation backtrack and BadSpot executors

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test: add UTs for precision check max(1,...) guard

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test: add UTs for observer None guard in ingress drop executor

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refactor: remove redundant manual registry cleanup from executor registry tests

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test: add result analysis UTs for both executors (12 new tests)

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test: add UTs for intermittent executor return contract (4 new tests)

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test: add 7 UTs for buffer cleanup on PG failure in headroom pool probing

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fix: resolve flake8 E127/F811 and EOF errors in unit test files
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