Restore commented out tests

package.json

@@ -40,6 +40,7 @@
     "ember-cli-uglify": "^2.0.0",
     "ember-disable-prototype-extensions": "^1.1.2",
     "ember-export-application-global": "^2.0.0",
+    "ember-font-awesome": "^4.0.0-rc.4",
     "ember-load-initializers": "^1.1.0",
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-named-arguments-polyfill": "^1.0.0",

tests/integration/components/angle-bracket-invocation-test.js

@@ -22,16 +22,11 @@ module('Integration | Component | angle-bracket-invocation', function(hooks) {
       assert.dom().hasText('my-helper');
     });
 
-    // The following test is commented out because the ember-font-awesome is not compatible with
-    // modern Embers. This test should be uncommented and refactored to use a custom AST transform
-    // that emulates the behavior of the `fa-icon` transform in ember-font-awesome but is compatible
-    // with all tested versions of Ember.
-    //
-    // test('does not error when using with synthetic elements (GH#31)', async function(assert) {
-    //   await render(hbs`{{fa-icon "camera"}}`);
+    test('does not error when using with synthetic elements (GH#31)', async function(assert) {
+      await render(hbs`{{fa-icon "camera"}}`);
 
-    //   assert.dom('i').hasClass('fa-camera');
-    // });
+      assert.dom('i').hasClass('fa-camera');
+    });
 
     test('single word components', async function(assert) {
       this.owner.register('template:components/foo', hbs`hi martin!`);
@@ -273,33 +268,29 @@ module('Integration | Component | angle-bracket-invocation', function(hooks) {
       assert.dom().hasText('hi rwjblue!');
     });
 
-    // The following test is commented out because the template does not even compile in modern Embers
-    // with the error "You used elsewhere.curriedThing as a tag name, but elsewhere is not in scope".
-    // This test can be uncommented once it can be conditionally run only in older Embers.
-    //
-    // test('invoke dynamic - path no implicit this', async function(assert) {
-    //   this.owner.register('service:elsewhere', Service.extend());
-    //   this.owner.register(
-    //     'component:x-invoker',
-    //     Component.extend({
-    //       elsewhere: injectService(),
-
-    //       init() {
-    //         this._super(...arguments);
-
-    //         let elsewhere = this.get('elsewhere');
-    //         elsewhere.set('curriedThing', this.curriedThing);
-    //       },
-    //     })
-    //   );
-    //   this.owner.register('template:components/x-invoker', hbs`<elsewhere.curriedThing />`);
-    //   this.owner.register('template:components/foo-bar', hbs`hi rwjblue!`);
-
-    //   await render(hbs`{{x-invoker curriedThing=(component 'foo-bar')}}`);
-
-    //   // should not have rendered anything (no implicit `this`)
-    //   assert.dom().hasText('');
-    // });
+    test('invoke dynamic - path no implicit this', async function(assert) {
+      this.owner.register('service:elsewhere', Service.extend());
+      this.owner.register(
+        'component:x-invoker',
+        Component.extend({
+          elsewhere: injectService(),
+
+          init() {
+            this._super(...arguments);
+
+            let elsewhere = this.get('elsewhere');
+            elsewhere.set('curriedThing', this.curriedThing);
+          },
+        })
+      );
+      this.owner.register('template:components/x-invoker', hbs`<elsewhere.curriedThing />`);
+      this.owner.register('template:components/foo-bar', hbs`hi rwjblue!`);
+
+      await render(hbs`{{x-invoker curriedThing=(component 'foo-bar')}}`);
+
+      // should not have rendered anything (no implicit `this`)
+      assert.dom().hasText('');
+    });
   });
 
   module('has-block', function(hooks) {