Uses ember generator for tests and fix ember-cli

Ember-cli was previously broken (invalid JSON because extra `,`).
Fixed the cli, then recreated the adapter, serializer, and service
using ember generator, because they didn't have tests.

.ember-cli

@@ -6,5 +6,5 @@
     Setting `disableAnalytics` to true will prevent any data from being sent.
   */
   "disableAnalytics": true,
-  "port": 7165,  // +('GA'.split('').reduce((p, c)=> p + c.charCodeAt(), ''));
+  "port": 7165  // +('GA'.split('').reduce((p, c)=> p + c.charCodeAt(), ''));
 }

app/services/auth.js

@@ -0,0 +1,4 @@
+import Ember from 'ember';
+
+export default Ember.Service.extend({
+});

tests/unit/adapters/application-test.js

@@ -0,0 +1,12 @@
+import { moduleFor, test } from 'ember-qunit';
+
+moduleFor('adapter:application', 'Unit | Adapter | application', {
+  // Specify the other units that are required for this test.
+  // needs: ['serializer:foo']
+});
+
+// Replace this with your real tests.
+test('it exists', function(assert) {
+  let adapter = this.subject();
+  assert.ok(adapter);
+});

tests/unit/serializers/application-test.js

@@ -0,0 +1,15 @@
+import { moduleForModel, test } from 'ember-qunit';
+
+moduleForModel('application', 'Unit | Serializer | application', {
+  // Specify the other units that are required for this test.
+  needs: ['serializer:application']
+});
+
+// Replace this with your real tests.
+test('it serializes records', function(assert) {
+  let record = this.subject();
+
+  let serializedRecord = record.serialize();
+
+  assert.ok(serializedRecord);
+});

tests/unit/services/auth-test.js

@@ -0,0 +1,12 @@
+import { moduleFor, test } from 'ember-qunit';
+
+moduleFor('service:auth', 'Unit | Service | auth', {
+  // Specify the other units that are required for this test.
+  // needs: ['service:foo']
+});
+
+// Replace this with your real tests.
+test('it exists', function(assert) {
+  let service = this.subject();
+  assert.ok(service);
+});