qa: adds tests for #378

Author: weierophinney

test/UploadedFileTest.php

@@ -13,6 +13,7 @@
 use PHPUnit\Framework\TestCase;
 use ReflectionProperty;
 use RuntimeException;
+use SplFileInfo;
 use Zend\Diactoros\Stream;
 use Zend\Diactoros\UploadedFile;
 
@@ -325,4 +326,13 @@ public function testMoveToRaisesExceptionWithAppropriateMessageWhenUploadErrorDe
         $this->expectExceptionMessage($message);
         $uploadedFile->moveTo('/tmp/foo');
     }
+
+    /**
+     * @see https://github.com/zendframework/zend-diactoros/pull/378
+     */
+    public function testExtendsSplFileInfo()
+    {
+        $uploaded = new UploadedFile(fopen('php://temp', 'wb+'), 0, UPLOAD_ERR_OK);
+        $this->assertInstanceOf(SplFileInfo::class, $uploaded);
+    }
 }