Covered with API tests getting invalid short URLs by short code and domain

module/Rest/test-api/Utils/NotFoundUrlHelpersTrait.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ShlinkioApiTest\Shlink\Rest\Utils;
+
+use Laminas\Diactoros\Uri;
+
+use function GuzzleHttp\Psr7\build_query;
+use function sprintf;
+
+trait NotFoundUrlHelpersTrait
+{
+    public function provideInvalidUrls(): iterable
+    {
+        yield 'invalid shortcode' => ['invalid', null, 'No URL found with short code "invalid"'];
+        yield 'invalid shortcode + domain' => [
+            'abc123',
+            'example.com',
+            'No URL found with short code "abc123" for domain "example.com"',
+        ];
+    }
+
+    public function buildShortUrlPath(string $shortCode, ?string $domain, string $suffix = ''): string
+    {
+        $url = new Uri(sprintf('/short-urls/%s%s', $shortCode, $suffix));
+        if ($domain !== null) {
+            $url = $url->withQuery(build_query(['domain' => $domain]));
+        }
+
+        return (string) $url;
+    }
+}