fix rebase part 2

Author: deer-wmde

tests/Services/MediaWikiHostResolverTest.php

@@ -4,6 +4,7 @@
 
 use App\Services\MediaWikiHostResolver;
 use App\Services\UnknownDBVersionException;
+use App\Services\UnknownWikiDomainException;
 use App\Wiki;
 use App\WikiDb;
 use Faker\Factory;
@@ -43,4 +44,13 @@ public function testResolverThrowsIfUnableToFindHostInMap(): void {
             UnknownDBVersionException::class
         );
     }
+
+    public function testResolverThrowsIfUnableToFindWiki(): void {
+        $domain = (new Factory)->create()->unique()->text(30);
+        $resolver = new MediaWikiHostResolver;
+        $this->assertThrows(
+            fn () => $resolver->getBackendHostForDomain($domain),
+            UnknownWikiDomainException::class
+        );
+    }
 }