feat(app): use ember-exam to run tests

package.json

@@ -34,7 +34,7 @@
     "postinstall": "patch-package",
     "build": "ember build",
     "start": "ember serve",
-    "test": "ember test",
+    "test": "ember exam",
     "lint:js": "eslint .",
     "lint:hbs": "ember-template-lint .",
     "cz": "git-cz",
@@ -212,6 +212,7 @@
     "ember-data": "^3.7.0",
     "ember-decorators": "^5.1.2",
     "ember-electron": "^2.10.0",
+    "ember-exam": "^2.0.3",
     "ember-exex": "^0.2.0",
     "ember-export-application-global": "^2.0.0",
     "ember-fetch": "^6.4.0",

testem.js

@@ -1,5 +1,9 @@
 /* eslint-env node */
+const jobs = process.env.JOBS || -1;
+const parallel = process.env.EMBER_EXAM_SPLIT_COUNT || jobs;
+
 module.exports = {
+  parallel,
   test_page: 'tests/index.html?hidepassed',
   disable_watching: true,
   launch_in_ci: [

tests/test-helper.js

@@ -1,8 +1,12 @@
+import loadEmberExam from 'ember-exam/test-support/load';
 import { beforeEach, afterEach } from 'mocha';
 import { setResolver } from 'ember-mocha';
 import { enable, disable } from 'ember-concurrency-retryable';
+
 import resolver from './helpers/resolver';
 
+loadEmberExam();
+
 setResolver(resolver);
 
 beforeEach(() => enable());

yarn.lock

@@ -4785,7 +4785,7 @@ cli-table2@^0.2.0:
   optionalDependencies:
     colors "^1.1.2"
 
-cli-table3@^0.5.0:
+cli-table3@^0.5.0, cli-table3@^0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/cli-table3/-/cli-table3-0.5.1.tgz#0252372d94dfc40dbd8df06005f48f31f656f202"
   integrity sha512-7Qg2Jrep1S/+Q3EceiZtQcDPWxhAvBw+ERf1162v4sikJrvojMHFqXt8QIVha8UlH9rgU0BeWPytZ9/TzYqlUw==
@@ -8224,6 +8224,19 @@ ember-electron@^2.10.0:
     tree-sync "^1.2.2"
     yarn-or-npm "^2.0.4"
 
+ember-exam@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/ember-exam/-/ember-exam-2.0.3.tgz#74ebcdbbb5658c7420e8960bd04d1e291f728c9f"
+  integrity sha512-FLuDRkpUXQqjd7A3siPbPcMmUmUZlm1lumWatC/3mxph3kV+c2FIfft83CJKjkhK5i7j7jRPa49LimreC6UmbQ==
+  dependencies:
+    chalk "^2.1.0"
+    cli-table3 "^0.5.1"
+    debug "^4.1.0"
+    ember-cli-babel "^7.4.0"
+    execa "^1.0.0"
+    fs-extra "^7.0.1"
+    rimraf "^2.6.2"
+
 ember-exex@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/ember-exex/-/ember-exex-0.2.0.tgz#61b3ab45aec100688649ba114f35eb1482ed313f"
@@ -14733,7 +14746,7 @@ npmlog@^2.0.3:
     are-we-there-yet "~1.1.2"
     gauge "~1.2.5"
 
-"nprogress@github:alexlafroscia/nprogress#allow-alternate-scheduler":
+nprogress@alexlafroscia/nprogress#allow-alternate-scheduler:
   version "0.2.0"
   resolved "https://codeload.github.com/alexlafroscia/nprogress/tar.gz/af37323172b98441d02aa02447f795f5766419b0"