add simple test for parsing default config

Related: #2143264

tests/defconfig/runtest.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+# Test if synce4l can parse default configuration
+
+set -ex
+
+# Find a nonexistent network device
+i=1
+while ip link show eth$i &> /dev/null; do
+	i=$((i + 1))
+done
+eth=eth$i
+
+tmpconf=$(mktemp)
+
+sed "s/^\[eth0\]/\[eth$i\]/" < /etc/synce4l.conf > "$tmpconf"
+
+out=$(synce4l -m -q -l 7 -f "$tmpconf" 2>&1 || :)
+
+echo "$out" | grep -q "config item synce1"
+echo "$out" | grep -q "ioctl SIOCGIFHWADDR failed: No such device"
+
+echo "unknownoption 1" >> "$tmpconf"
+
+out=$(synce4l -m -q -l 7 -f "$tmpconf" 2>&1 || :)
+
+echo "$out" | grep -q "failed to parse configuration file"
+
+rm "$tmpconf"
+
+exit 0

tests/tests.yml

@@ -0,0 +1,9 @@
+- hosts: localhost
+  roles:
+  - role: standard-test-basic
+    tags:
+    - classic
+    tests:
+    - defconfig
+    required_packages:
+    - iproute