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NickSdot
5d58876192
Prevents unavailable optional test services from slowing the suite through repeated connection timeouts. PDO and SNMP availability probes cache the first failure for the duration of one test run, so later SKIPIF checks return immediately. Only failures are cached; successful probes and test connections are unchanged. PDOs one second timeout applies only to the default availability probe. The caches are private, run-scoped and removed afterwards. A service becoming available mid run is detected on the next test-suite run.