add: web enum test.

Author: ItzNotABug

tests/languages/web/index.html

@@ -92,6 +92,9 @@
             response = await general.enum(MockType.First);
             console.log(response.result);
 
+            response = await general.enum(MockType.Fourth);
+            console.log(response.result);
+
             try {
                 response = await general.empty();
             } catch (error) {