Writing tests for chartDashboard.js

tests/javascripts/support/jest.setup.js

@@ -0,0 +1,11 @@
+const fs = require('fs');
+const path = require('path');
+
+// Polyfill holes in JSDOM
+require('./polyfills.js');
+
+// Set up jQuery
+global.$ = global.jQuery = require('jquery');
+
+// Load module code
+require('govuk_frontend_toolkit/javascripts/govuk/modules.js');