TS tests: fix query params

Author: jenschude

languages/typescript/src/main/kotlin/io/vrap/codegen/languages/typescript/test/TypescriptRequestTestRenderer.kt

@@ -91,7 +91,7 @@ class TypescriptRequestTestRenderer constructor(override val vrapTypeProvider: V
         var paramName: String = parameter.name
         var methodValue = parameter.template()
         var requiredParams = method.queryParameters.toMutableList().filter { p -> p.name != parameter.name && p.required  }
-        var requiredParamsStr: String = requiredParams.map { r -> "${r.name}:${queryParamValueString(r.name, r.type, Random(r.name.hashCode()))}" }.joinToString(", ")
+        var requiredParamsStr: String = requiredParams.map { r -> "\'${r.name}\':${queryParamValueString(r.name, r.type, Random(r.name.hashCode()))}" }.joinToString(", ")
         var requiredParamsStrUrl: String = requiredParams.map { r -> "${r.name}:${URLEncoder.encode(queryParamValueString(r.name, r.type, Random(r.name.hashCode())).toString().replace("\"",""), "UTF-8")}" }.joinToString("&")
 
         if (anno != null) {