fix: Setup chai-as-promised for mocha tests

Author: jvsena42

example/shim.js

@@ -34,3 +34,8 @@ if (typeof localStorage !== 'undefined') {
 // If using the crypto shim, uncomment the following line to ensure
 // crypto is loaded first, so it can populate global.crypto
 require('crypto');
+
+// Setup chai-as-promised for mocha tests
+const chai = require('chai');
+const chaiAsPromised = require('chai-as-promised');
+chai.use(chaiAsPromised);