Add test for OpenSearch endpoint

lang/en/common.php

@@ -107,4 +107,7 @@ return [
     // Not directly used but available for convenience to users.
     'privacy_policy' => 'Privacy Policy',
     'terms_of_service' => 'Terms of Service',
+
+    // OpenSearch
+    'opensearch_description' => 'Search :appName',
 ];

resources/views/misc/opensearch.blade.php

@@ -1,6 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
   <ShortName>{{ mb_strimwidth(setting('app-name'), 0, 16) }}</ShortName>
-  <Description>Search {{ setting('app-name') }}</Description>
+  <Description>{{ trans('common.opensearch_description', ['appName' => setting('app-name')]) }}</Description>
   <Image width="256" height="256" type="image/png">{{ setting('app-icon') ?: url('/icon.png') }}</Image>
   <Image width="180" height="180" type="image/png">{{ setting('app-icon-180') ?: url('/icon-180.png') }}</Image>
   <Image width="128" height="128" type="image/png">{{ setting('app-icon-128') ?: url('/icon-128.png') }}</Image>

tests/OpensearchTest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Tests;
+
+class OpensearchTest extends TestCase
+{
+    public function test_opensearch_endpoint()
+    {
+        $appName = setting('app-name');
+        $resultUrl = url('/search') . '?term={searchTerms}';
+        $selfUrl = url('/opensearch.xml');
+
+        $resp = $this->get('/opensearch.xml');
+        $resp->assertOk();
+
+        $html = $this->withHtml($resp);
+
+        $html->assertElementExists('OpenSearchDescription > ShortName');
+        $html->assertElementContains('OpenSearchDescription > ShortName', mb_strimwidth($appName, 0, 16));
+
+        $html->assertElementExists('OpenSearchDescription > Description');
+        $html->assertElementContains('OpenSearchDescription > Description', trans('common.opensearch_description', [
+            'appName' => $appName,
+        ]));
+
+        $html->assertElementExists('OpenSearchDescription > Image');
+
+        $html->assertElementExists('OpenSearchDescription > Url[rel="results"][template="' . htmlspecialchars($resultUrl) . '"]');
+        $html->assertElementExists('OpenSearchDescription > Url[rel="self"][template="' . htmlspecialchars($selfUrl) . '"]');
+    }
+
+    public function test_opensearch_linked_to_from_home()
+    {
+        $appName = setting('app-name');
+        $endpointUrl = url('/opensearch.xml');
+
+        $resp = $this->asViewer()->get('/');
+        $html = $this->withHtml($resp);
+
+        $html->assertElementExists('head > link[rel="search"][type="application/opensearchdescription+xml"][title="' . htmlspecialchars($appName) . '"][href="' . htmlspecialchars($endpointUrl) . '"]');
+    }
+}