feat: add MCP server for the website chatbot over a mirrored TYPO3 content feed

tests/Chatbot/Search/ContentSearchQueryTest.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Chatbot\Search;
+
+use App\Chatbot\Search\ContentSearchQuery;
+use App\Chatbot\Search\Excerpt;
+use PHPUnit\Framework\TestCase;
+
+class ContentSearchQueryTest extends TestCase
+{
+    public function testDropsGermanStopwordsShortTokensAndOperators(): void
+    {
+        self::assertSame(
+            'skipass* val* thorens* inklusive*',
+            ContentSearchQuery::booleanQuery('Ist im Skipass bei "Val Thorens" alles +inklusive? Ja!'),
+        );
+    }
+
+    public function testTermsAreUniqueAndLowerCased(): void
+    {
+        self::assertSame(['gepäck', 'snowboard'], ContentSearchQuery::terms('Gepäck GEPÄCK Snowboard'));
+    }
+
+    public function testNothingSearchableLeftIsNull(): void
+    {
+        self::assertNull(ContentSearchQuery::booleanQuery('Was ist das?'));
+        self::assertNull(ContentSearchQuery::booleanQuery('***'));
+    }
+
+    public function testExcerptIsTheWholeTextWhenShort(): void
+    {
+        self::assertSame('Kurzer Text', Excerpt::around("Kurzer\n\nText", ['text']));
+    }
+
+    public function testExcerptCentresOnTheFirstMatch(): void
+    {
+        $text = str_repeat('Füllwort ', 200).'Der Skipass ist inklusive. '.str_repeat('Nachwort ', 200);
+        $excerpt = Excerpt::around($text, ['skipass']);
+
+        self::assertStringContainsString('Der Skipass ist inklusive.', $excerpt);
+        self::assertStringStartsWith('…', $excerpt);
+        self::assertStringEndsWith('…', $excerpt);
+        self::assertLessThanOrEqual(Excerpt::LENGTH + 2, mb_strlen($excerpt));
+    }
+}