Working state

tests/Shared/ClientIpResolverCoverageTest.php

@@ -0,0 +1,35 @@
+<?php
+declare(strict_types=1);
+
+namespace Tests\Shared;
+
+use App\Shared\Http\ClientIpResolver;
+use PHPUnit\Framework\TestCase;
+use Slim\Psr7\Factory\ServerRequestFactory;
+
+#[\PHPUnit\Framework\Attributes\AllowMockObjectsWithoutExpectations]
+final class ClientIpResolverCoverageTest extends TestCase
+{
+    public function testResolveReturnsRemoteAddrWhenTrustedProxyHasNoForwardedHeader(): void
+    {
+        $request = (new ServerRequestFactory())->createServerRequest('GET', '/', [
+            'REMOTE_ADDR' => '127.0.0.1',
+        ]);
+
+        $resolver = new ClientIpResolver(['127.0.0.1']);
+
+        self::assertSame('127.0.0.1', $resolver->resolve($request));
+    }
+
+    public function testResolveTrimsForwardedIpWhenProxyWildcardIsTrusted(): void
+    {
+        $request = (new ServerRequestFactory())->createServerRequest('GET', '/', [
+            'REMOTE_ADDR' => '10.0.0.1',
+            'HTTP_X_FORWARDED_FOR' => ' 203.0.113.77  , 198.51.100.12',
+        ]);
+
+        $resolver = new ClientIpResolver(['*']);
+
+        self::assertSame('203.0.113.77', $resolver->resolve($request));
+    }
+}