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https://github.com/kuhyx/utils.git
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Krzysztof kuhy Rudnicki
36234e980a
shutdown_verdict_demo.sh exercises every branch of the verdict table against a
real guest -- clean poweroff, reboot-instead-of-poweroff, kernel panic, and a
command that leaves the machine running. The failure branches matter as much
as the success one: a verifier that has only ever returned "pass" is untested.
destructive_demo.sh is the acceptance test for the tool as a whole: destroy
/etc and /usr in the guest, assert the guest really is broken, reset with one
command, assert it is pristine again, then assert the HOST is untouched
(/etc/hosts attributes unchanged, base image hash unchanged, /etc and /usr
still present).
Measured on the first real run, which confirms the design's central claim:
QMP reported SHUTDOWN {"guest": true, "reason": "guest-shutdown"} and the
serial log reached "reboot: Power down", so the verdict was "clean poweroff"
with exit 0 -- while ssh saw only "Connection closed by remote host", which
would have been indistinguishable from a crash or a dropped link.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VdyMBGCrGVGDWtJ9xe48f3
64 lines
2.1 KiB
Bash
Executable File
64 lines
2.1 KiB
Bash
Executable File
#!/bin/bash
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# ============================================================================
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# vmbox: the headline test -- "does shutdown.sh really shut the machine down?"
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#
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# Exercises every branch of the verdict table against a REAL guest, including
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# the failure modes. A verifier that has only ever returned "pass" is untested,
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# so the reboot / panic cases matter as much as the clean one.
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# ============================================================================
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set -uo pipefail
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VMBOX_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
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readonly VMBOX_ROOT
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readonly VM="${VM:-verdict}"
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readonly VM_CLI="$VMBOX_ROOT/bin/vm"
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pass=0
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fail=0
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step() { printf '\n\033[0;34m=== %s\033[0m\n' "$*"; }
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expect() {
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local label="$1" want="$2" got="$3"
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if [[ "$got" == *"$want"* ]]; then
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printf '\033[0;32m PASS\033[0m %s\n' "$label"
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pass=$(( pass + 1 ))
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else
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printf '\033[0;31m FAIL\033[0m %s\n wanted verdict: %s\n got: %s\n' \
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"$label" "$want" "$got"
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fail=$(( fail + 1 ))
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fi
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}
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reset_vm() { "$VM_CLI" reset "$VM" >/dev/null 2>&1 || "$VM_CLI" new "$VM" >/dev/null 2>&1; }
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"$VM_CLI" rm "$VM" >/dev/null 2>&1
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"$VM_CLI" new "$VM" --rtc 2026-08-22T20:55:00
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step "1. A genuine, clean poweroff"
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out="$("$VM_CLI" run "$VM" 'sudo systemctl poweroff' 2>&1)"
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printf '%s\n' "$out" | tail -4
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expect "clean poweroff is recognised" "clean poweroff" "$out"
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step "2. A script that REBOOTS instead of powering off"
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reset_vm
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out="$("$VM_CLI" run "$VM" 'sudo systemctl reboot' 2>&1)"
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printf '%s\n' "$out" | tail -4
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expect "reboot is not mistaken for a shutdown" "REBOOTED" "$out"
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step "3. A hard kernel panic"
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reset_vm
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out="$("$VM_CLI" run "$VM" 'echo c | sudo tee /proc/sysrq-trigger' 2>&1)"
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printf '%s\n' "$out" | tail -4
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expect "panic is distinguished from a clean stop" "PANIC" "$out"
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step "4. A command that does NOT stop the machine"
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reset_vm
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out="$("$VM_CLI" run "$VM" 'echo still-here' 2>&1)"
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printf '%s\n' "$out" | tail -4
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expect "a live guest is reported as still running" "still running" "$out"
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printf '\n\033[0;34m=== RESULT: %d passed, %d failed\033[0m\n' "$pass" "$fail"
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exit $(( fail > 0 ? 1 : 0 ))
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