feat: travel data API endpoint for travelinfo pages in TYPO3

tests/BusProNet/Utility/TravelCodeUtilityTest.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace BusProNet\Utility;
+
+use App\BusProNet\Utility\TravelCodeUtility;
+use PHPUnit\Framework\TestCase;
+
+class TravelCodeUtilityTest extends TestCase
+{
+    public function testSanitizeCode(): void
+    {
+        $utility = new TravelCodeUtility();
+
+        $travelCode = 'ABCDEF/010125';
+        $sanitized = $utility->sanitize($travelCode);
+        $this->assertEquals('ABCDEF010125', $sanitized);
+
+        $travelCode = 'ABCDEF-010125';
+        $sanitized = $utility->sanitize($travelCode);
+        $this->assertEquals('ABCDEF010125', $sanitized);
+
+        $travelCode = 'abcdef/010125';
+        $sanitized = $utility->sanitize($travelCode);
+        $this->assertEquals('ABCDEF010125', $sanitized);
+    }
+
+    public function testGetBaseCode(): void
+    {
+        $utility = new TravelCodeUtility();
+
+        $travelCode = 'ABCDEF010125';
+        $baseCode = $utility->getBaseCode($travelCode);
+        $this->assertEquals('ABCDEF', $baseCode);
+
+        $travelCode = 'abcdef010125';
+        $baseCode = $utility->getBaseCode($travelCode);
+        $this->assertEquals('ABCDEF', $baseCode);
+    }
+
+    public function testGetDate(): void
+    {
+        $utility = new TravelCodeUtility();
+
+        $travelCode = 'ABCDEF010125';
+        $date = $utility->getDate($travelCode);
+        $this->assertEquals('2025-01-01', $date->format('Y-m-d'));
+    }
+}