mirror of
https://github.com/kuhyx/testsAndMisc.git
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Krzysztof kuhy Rudnicki
deaf3ba80a
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
57 lines
2.0 KiB
Bash
Executable File
57 lines
2.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Tests for dns_units.sh -- the dnsmasq config and its systemd drop-in.
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#
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# Both regressions this guards were invisible to a presence check. With
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# bind-interfaces, dnsmasq died at every boot ("unknown interface enp6s0")
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# because it started before the NIC existed. The drop-in's
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# After=network-online.target formed an ordering cycle with the stock unit's
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# Before=network-online.target, and systemd broke it by deleting a job.
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#
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# Rendering writes only where it is told, so this suite needs no jail.
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set -euo pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck source=./features_harness.sh
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. "$SCRIPT_DIR/features_harness.sh"
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_t_setup_env
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trap _t_teardown EXIT
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ensure_dir() { mkdir -p "$1"; }
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log_info() { :; }
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# shellcheck source=../dns_units.sh
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. "$SCRIPT_DIR/../dns_units.sh"
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DNSMASQ_CONF="$TEST_TMPDIR/dnsmasq.d/lan-blocker.conf"
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DNSMASQ_DROPIN_DIR="$TEST_TMPDIR/dnsmasq.service.d"
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DNSMASQ_DROPIN="$DNSMASQ_DROPIN_DIR/blocker.conf"
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LAN_IFACE="enp6s0"
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LAN_IP="192.168.1.43"
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UPSTREAM="1.1.1.1"
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FEED="$TEST_TMPDIR/blocklist.hosts"
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LOG_FILE="$TEST_TMPDIR/dnsmasq.log"
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write_dnsmasq_conf
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install_restart_dropin
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printf '\n-- dnsmasq survives starting before the NIC exists --\n'
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_t_file_has "$DNSMASQ_CONF" '^interface=enp6s0$' "listens only on the LAN interface"
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_t_file_has "$DNSMASQ_CONF" '^bind-dynamic$' "binds the address whenever the interface appears"
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if grep -q '^bind-interfaces' "$DNSMASQ_CONF"; then
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_t_fail "bind-interfaces exits with 'unknown interface' when started before the NIC"
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else
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_t_pass "no bind-interfaces"
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fi
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printf '\n-- the drop-in keeps it up without an ordering cycle --\n'
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_t_file_has "$DNSMASQ_DROPIN" '^Restart=always$' "restarts on any exit"
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if grep -qE '^(After|Wants|Requires)=.*network-online' "$DNSMASQ_DROPIN"; then
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_t_fail "network-online ordering cycles with the stock Before=network-online.target"
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else
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_t_pass "no network-online ordering"
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fi
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printf '\n%d passed, %d failed\n' "$PASS" "$FAIL"
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[[ $FAIL -eq 0 ]]
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