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- openEnoent: verifies ior captures enter_openat even when syscall fails (ENOENT)
- openRdonlyWrite: verifies tracing of open + failed write to read-only fd
- openPidFilter: verifies child process I/O is excluded by PID filtering
- AssertEventsAbsent helper with zero-value guard and 6 unit tests
Task: 348
Amp-Thread-ID: https://ampcode.com/threads/T-019c8185-55f4-72f0-8ddb-3be5e4002c0d
Co-authored-by: Amp <amp@ampcode.com>
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improve assertions
- Symlink ior.bpf.o into output dir so ior finds it when run from temp dir
- Increase iorShutdownGrace from 3s to 30s for BPF tracepoint unloading
- Skip records with empty comm in AssertNoUnexpectedComm (BPF race condition)
- Add diagnostic logging (up to 5 samples) in both AssertNoUnexpectedComm
and AssertNoUnexpectedPID for easier debugging of test failures
Amp-Thread-ID: https://ampcode.com/threads/T-019c814e-d6b6-72fb-aaf0-c49f5b3fd04e
Co-authored-by: Amp <amp@ampcode.com>
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- INTEGRATIONTESTS-PLAN.md: full design for e2e integration tests
- integrationtests/cmd/ioworkload: standalone binary with 13 I/O scenarios
- integrationtests/expectations.go: ExpectedEvent type and assertion helpers
- integrationtests/parse.go: .ior.zst parser producing TestResult
- Export IterRecord and LoadFromFile in flamegraph package
- Fix TraceId -> TraceID, StringByName returns error instead of panic
Amp-Thread-ID: https://ampcode.com/threads/T-019c8031-c106-757a-95a0-7a5457163ce7
Co-authored-by: Amp <amp@ampcode.com>
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