Update tests/Unit/Value/CSSStringTest.php

Co-authored-by: JakeQZ <jake@qzdesign.co.uk>

Author: oliverklee

tests/Unit/Value/CSSStringTest.php

@@ -136,13 +136,12 @@ public function doesNotEscapeCharactersThatDoNotNeedToBeEscaped(): void
      */
     public function doesNotEscapeDoubleQuotesThatDoNotNeedToBeEscaped(): void
     {
+        $input = '"Hello World"';
+        
         $outputFormat = OutputFormat::createPretty();
 
-        $input = "'Hello World'";
-
-        self::assertSame("\"{$input}\"", (new CSSString($input))->render($outputFormat));
+        self::assertSame('"\\"Hello World\\""', (new CSSString($input))->render($outputFormat));
 
-        $input = '"Hello World"';
 
         $outputFormat->setStringQuotingType("'");