Enable embroider-safe ember-try scenario

.github/workflows/ci-build.yml

@@ -58,6 +58,7 @@ jobs:
           - ember-canary
           - ember-classic
           - ember-default-with-jquery
+          - embroider-safe
 
     steps:
       - uses: actions/checkout@v2

config/ember-try.js

@@ -2,6 +2,45 @@
 
 const getChannelURL = require('ember-source-channel-url');
 
+const EMBROIDER_VERSION = '^0.43.4';
+const embroider = {
+  safe: {
+    name: 'embroider-safe',
+    npm: {
+      devDependencies: {
+        '@embroider/core': EMBROIDER_VERSION,
+        '@embroider/webpack': EMBROIDER_VERSION,
+        '@embroider/compat': EMBROIDER_VERSION,
+        '@embroider/test-setup': EMBROIDER_VERSION,
+
+        // Webpack is a peer dependency of `@embroider/webpack`
+        webpack: '^5.0.0',
+      },
+    },
+    env: {
+      EMBROIDER_TEST_SETUP_OPTIONS: 'safe',
+    },
+  },
+
+  optimized: {
+    name: 'embroider-optimized',
+    npm: {
+      devDependencies: {
+        '@embroider/core': EMBROIDER_VERSION,
+        '@embroider/webpack': EMBROIDER_VERSION,
+        '@embroider/compat': EMBROIDER_VERSION,
+        '@embroider/test-setup': EMBROIDER_VERSION,
+
+        // Webpack is a peer dependency of `@embroider/webpack`
+        webpack: '^5.0.0',
+      },
+    },
+    env: {
+      EMBROIDER_TEST_SETUP_OPTIONS: 'optimized',
+    },
+  },
+};
+
 module.exports = async function () {
   return {
     useYarn: true,
@@ -103,6 +142,20 @@ module.exports = async function () {
           devDependencies: {},
         },
       },
+      embroider.safe,
+      // disable embroider optimized test scenarios, as the dynamism these
+      // tests use is not compatible with embroider we are still exploring
+      // appropriate paths forward.
+      //
+      // Steps to re-enable:
+      //
+      // 1. have a strategy to make this work
+      // 2. uncomment the next line
+      // embroider.optimized,
+      //
+      // 3. add "embroider-optimized" to .github/workflows/ci-build.yml's
+      //    ember-try-scenario list.
+      //
     ],
   };
 };

ember-cli-build.js

@@ -3,21 +3,22 @@
 const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');
 
 module.exports = function (defaults) {
-  let app = new EmberAddon(defaults, {
-    autoImport: {
-      exclude: ['qunit'],
-    },
-  });
-
-  app.import('node_modules/qunit/qunit/qunit.js', {
-    type: 'test',
-  });
+  let app = new EmberAddon(defaults);
 
   app.import('node_modules/qunit/qunit/qunit.css', {
     type: 'test',
   });
 
-  app.import('vendor/shims/qunit.js', { type: 'test' });
-
-  return app.toTree();
+  try {
+    const { maybeEmbroider } = require('@embroider/test-setup'); // eslint-disable-line node/no-missing-require
+    return maybeEmbroider(app);
+  } catch (e) {
+    // This exists, so that we can continue to support node 10 for some of our
+    // test scenarios. Specifically those not scenario testing embroider. As
+    // @embroider/test-setup and @embroider in no longer supports node 10
+    if (e !== null && typeof e === 'object' && e.code === 'MODULE_NOT_FOUND') {
+      return app.toTree();
+    }
+    throw e;
+  }
 };

tests/dummy/vendor/ember-cli/test-support-suffix.js

@@ -0,0 +1,17 @@
+// eslint-disable-next-line no-unused-vars
+/* global runningTests: true */
+
+/*
+  used to determine if the application should be booted immediately when `app-name.js` is evaluated
+  when `runningTests` the `app-name.js` file will **not** import the applications `app/app.js` and
+  call `Application.create(...)` on it. Additionally, applications can opt-out of this behavior by
+  setting `autoRun` to `false` in their `ember-cli-build.js`
+*/
+runningTests = true;
+
+/*
+  This file overrides a file built into ember-cli's build pipeline and prevents
+  this built-in `Testem.hookIntoTestFramework` invocation:
+
+  https://github.com/ember-cli/ember-cli/blob/v3.20.0/lib/broccoli/test-support-suffix.js#L3-L5
+*/

tests/index.html

@@ -22,13 +22,13 @@
     {{content-for "test-body"}}
 
     <div id="qunit"></div>
-    <div id="qunit-fixture"></div>
-
-    <div id="ember-testing-container">
-      <div id="ember-testing"></div>
+    <div id="qunit-fixture">
+      <div id="ember-testing-container">
+        <div id="ember-testing"></div>
+      </div>
     </div>
 
-    <script src="/testem.js" integrity=""></script>
+    <script src="/testem.js" integrity="" data-embroider-ignore></script>
     <script src="{{rootURL}}assets/vendor.js"></script>
     <script src="{{rootURL}}assets/test-support.js"></script>
     <script src="{{rootURL}}assets/dummy.js"></script>

tests/test-helper.js

@@ -1,3 +1,5 @@
+/* globals Testem */
+
 import QUnit from 'qunit';
 import AbstractTestLoader from 'ember-cli-test-loader/test-support/index';
 import { polyfill } from 'es6-promise';
@@ -34,3 +36,8 @@ QUnit.testDone(function () {
   let testElementReset = testElementContainer.outerHTML;
   testElementContainer.innerHTML = testElementReset;
 });
+
+QUnit.start();
+if (typeof Testem !== 'undefined') {
+  Testem.hookIntoTestFramework();
+}