Add shell plugin model tests

test/shell.d/polkit-test.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
+
+run_node_test <<'JS'
+const polkit = requireFromRoot('shell/plugins/polkit/PolkitModel.js')
+
+assert(polkit.promptLooksFingerprint('Swipe your finger'), 'polkit detects fingerprint prompts')
+assert(polkit.promptLooksFingerprint('fprintd verification'), 'polkit detects fprint prompts')
+assert(!polkit.promptLooksFingerprint('Password:'), 'polkit ignores password prompts')
+
+assert(
+  polkit.fingerprintFirstFromPamConfig(`
+# comment
+auth sufficient pam_fprintd.so
+auth include system-auth
+`),
+  'polkit detects fingerprint-first PAM config'
+)
+assert(
+  !polkit.fingerprintFirstFromPamConfig(`
+account include system-auth
+auth include system-auth
+auth sufficient pam_fprintd.so
+`),
+  'polkit detects password-first PAM config'
+)
+JS