initial update

node_modules/zen-observable/test/setup.js

@@ -0,0 +1,9 @@
+import { Observable } from '../src/Observable.js';
+
+beforeEach(() => {
+  global.Observable = Observable;
+  global.hostError = null;
+  let $extensions = Object.getOwnPropertySymbols(Observable)[1];
+  let { hostReportError } = Observable[$extensions];
+  hostReportError.log = (e => global.hostError = e);
+});