# shellcheck shell=bash disable=SC2034  # sourced by run-maint-scenarios.sh
# Scenario: a failed unit's state is reset.
#
# A transient oneshot that exits 1 lands in systemctl --failed; the remedy
# resets it and the failed list returns to its pre-break size. The unit name
# rides the remedy's item argument, exercising the priv verb's unit-name
# validation. The base image carries its own failed unit (grub-btrfsd — no
# snapshot dirs in the VM), so the assert scopes to this scenario's unit and
# the count delta, never the absolute failed list.
SCENARIO_DESC="failed unit reset clears the failed list"
SCENARIO_GROUP="systemd"
SCENARIO_PROFILES="any"

scenario_break() {
    PRE_FAILED_COUNT=$(mexec "systemctl --failed --no-legend | wc -l") \
        && mexec "systemd-run --unit=maint-scenario-fail --service-type=oneshot --no-block /bin/false; sleep 2; systemctl is-failed maint-scenario-fail.service"
}

scenario_fix() {
    mfix unit_reset maint-scenario-fail.service
}

scenario_assert() {
    local pre="$PRE_FAILED_COUNT"
    unset PRE_FAILED_COUNT  # don't leak scenario state past this scenario
    mexec "! systemctl is-failed maint-scenario-fail.service >/dev/null 2>&1" \
        && [ "$(mexec "systemctl --failed --no-legend | wc -l")" = "$pre" ]
}