replace jest with ava

node_modules/ws/lib/validation.js

@@ -1,30 +0,0 @@
-'use strict';
-
-try {
-  const isValidUTF8 = require('utf-8-validate');
-
-  exports.isValidUTF8 =
-    typeof isValidUTF8 === 'object'
-      ? isValidUTF8.Validation.isValidUTF8 // utf-8-validate@<3.0.0
-      : isValidUTF8;
-} catch (e) /* istanbul ignore next */ {
-  exports.isValidUTF8 = () => true;
-}
-
-/**
- * Checks if a status code is allowed in a close frame.
- *
- * @param {Number} code The status code
- * @return {Boolean} `true` if the status code is valid, else `false`
- * @public
- */
-exports.isValidStatusCode = (code) => {
-  return (
-    (code >= 1000 &&
-      code <= 1014 &&
-      code !== 1004 &&
-      code !== 1005 &&
-      code !== 1006) ||
-    (code >= 3000 && code <= 4999)
-  );
-};