Remove hasEmberVersion

Author: NullVoxPopuli

addon-test-support/adapter.js

@@ -1,6 +1,5 @@
 import Ember from 'ember';
 import * as QUnit from 'qunit';
-import hasEmberVersion from '@ember/test-helpers/has-ember-version';
 
 function unhandledRejectionAssertion(current, error) {
   let message, source;
@@ -59,22 +58,6 @@ let Adapter = Ember.Test.Adapter.extend({
       done();
     }
   },
-
-  // clobber default implementation of `exception` will be added back for Ember
-  // < 2.17 just below...
-  exception: null,
 });
 
-// Ember 2.17 and higher do not require the test adapter to have an `exception`
-// method When `exception` is not present, the unhandled rejection is
-// automatically re-thrown and will therefore hit QUnit's own global error
-// handler (therefore appropriately causing test failure)
-if (!hasEmberVersion(2, 17)) {
-  Adapter = Adapter.extend({
-    exception(error) {
-      unhandledRejectionAssertion(QUnit.config.current, error);
-    },
-  });
-}
-
 export default Adapter;

tests/acceptance/basic-test.js

@@ -10,13 +10,8 @@ import {
   click,
 } from '@ember/test-helpers';
 import { setResolverRegistry } from '../helpers/resolver';
-import hasEmberVersion from '@ember/test-helpers/has-ember-version';
 
 module('setupApplicationTest tests', function (hooks) {
-  if (!hasEmberVersion(2, 4)) {
-    return;
-  }
-
   const Router = EmberRouter.extend({ location: 'none' });
   Router.map(function () {
     this.route('widgets');

tests/integration/setup-rendering-test-test.js

@@ -5,13 +5,8 @@ import { hbs } from 'ember-cli-htmlbars';
 import { setupRenderingTest } from 'ember-qunit';
 import { render } from '@ember/test-helpers';
 import { setResolverRegistry } from '../helpers/resolver';
-import hasEmberVersion from '@ember/test-helpers/has-ember-version';
 
 module('setupRenderingTest tests', function (hooks) {
-  if (!hasEmberVersion(2, 4)) {
-    return;
-  }
-
   hooks.beforeEach(function () {
     setResolverRegistry({});
   });

tests/integration/setup-test-test.js

@@ -2,14 +2,9 @@ import { module, test } from 'qunit';
 import Service, { inject as injectService } from '@ember/service';
 import Component from '@ember/component';
 import { setupTest } from 'ember-qunit';
-import hasEmberVersion from '@ember/test-helpers/has-ember-version';
 import { setResolverRegistry } from '../helpers/resolver';
 
 module('setupTest tests', function (hooks) {
-  if (!hasEmberVersion(2, 4)) {
-    return;
-  }
-
   hooks.beforeEach(function () {
     setResolverRegistry({});
   });
@@ -63,12 +58,7 @@ module('setupTest tests', function (hooks) {
       })
     );
 
-    let subject;
-    if (hasEmberVersion(2, 12)) {
-      subject = this.owner.lookup('component:foo-bar');
-    } else {
-      subject = this.owner._lookupFactory('component:foo-bar').create();
-    }
+    let subject = this.owner.lookup('component:foo-bar');
 
     assert.equal(subject.someMethod(), 'hello thar!');
   });