added 260907 version of worker toolkit

worker-toolkit-flaredown/repo/frontend/tests/helpers/destroy-app.js

@@ -0,0 +1,5 @@
+import { run } from '@ember/runloop';
+
+export default function destroyApp(application) {
+  run(application, 'destroy');
+}

worker-toolkit-flaredown/repo/frontend/tests/helpers/module-for-acceptance.js

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+import { module } from 'qunit';
+import startApp from '../helpers/start-app';
+import destroyApp from '../helpers/destroy-app';
+import Ember from 'ember';
+
+const { RSVP: { Promise } } = Ember;
+
+export default function(name, options = {}) {
+  module(name, {
+    beforeEach() {
+      this.application = startApp();
+
+      if (options.beforeEach) {
+        return options.beforeEach.apply(this, arguments);
+      }
+    },
+
+    afterEach() {
+      let afterEach = options.afterEach && options.afterEach.apply(this, arguments);
+      return Promise.resolve(afterEach).then(() => destroyApp(this.application));
+    }
+  });
+}

worker-toolkit-flaredown/repo/frontend/tests/helpers/resolver.js

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+import Resolver from '../../resolver';
+import config from '../../config/environment';
+
+const resolver = Resolver.create();
+
+resolver.namespace = {
+  modulePrefix: config.modulePrefix,
+  podModulePrefix: config.podModulePrefix
+};
+
+export default resolver;

worker-toolkit-flaredown/repo/frontend/tests/helpers/start-app.js

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+import Application from '../../app';
+import config from '../../config/environment';
+import { merge } from '@ember/polyfills';
+import { run } from '@ember/runloop';
+
+export default function startApp(attrs) {
+  let attributes = merge({}, config.APP);
+  attributes.autoboot = true;
+  attributes = merge(attributes, attrs); // use defaults, but you can override;
+
+  return run(() => {
+    let application = Application.create(attributes);
+    application.setupForTesting();
+    application.injectTestHelpers();
+  });
+}