Allow @ember/test-helpers 3 (#518)

* Set the package manager used

* Allow @ember/test-helpers v3

* Launch tests on ember-test-helpers 3

* Add @ember/string as dependencies of the test-app

* Remove ember-export-application-global that use Ember.String

.github/workflows/ci.yml

@@ -92,6 +92,7 @@ jobs:
           - ember-beta
           - ember-canary
           - ember-modifier-4
+          - ember-test-helpers-3
           - embroider-safe
           - embroider-optimized
 

addon/package.json

@@ -36,7 +36,7 @@
   },
   "peerDependencies": {
     "ember-modifier": "^3.2.0 || ^4.0.0",
-    "@ember/test-helpers": "^2.6.0",
+    "@ember/test-helpers": "^2.6.0 || ^3.0.0",
     "@ember/test-waiters": "^3.0.1",
     "ember-source": "^3.28.0 || ^4.0.0"
   },

package.json

@@ -1,6 +1,7 @@
 {
   "version": "0.0.0",
   "private": true,
+  "packageManager": "pnpm@7.33.6",
   "repository": {
     "type": "git",
     "url": "https://github.com/adopted-ember-addons/ember-sortable"

test-app/config/ember-try.js

@@ -39,6 +39,17 @@ module.exports = async function () {
           },
         },
       },
+      {
+        name: 'ember-test-helpers-3',
+        npm: {
+          dependencies: {
+            '@ember/test-helpers': '^3.0.0',
+          },
+          devDependencies: {
+            'ember-qunit': '^7.0.0',
+          },
+        },
+      },
       {
         name: 'ember-release',
         npm: {

test-app/package.json

@@ -17,6 +17,7 @@
     "test:all": "ember try:each"
   },
   "dependencies": {
+    "@ember/string": "^3.1.1",
     "@ember/test-helpers": "^2.6.0",
     "@ember/test-waiters": "^3.0.1",
     "ember-modifier": "^3.2.0",
@@ -43,7 +44,6 @@
     "ember-cli-htmlbars": "^6.0.1",
     "ember-cli-inject-live-reload": "^2.0.0",
     "ember-disable-prototype-extensions": "^1.1.3",
-    "ember-export-application-global": "^2.0.0",
     "ember-load-initializers": "^2.1.2",
     "ember-qunit": "mydea/ember-qunit#fn/ember-auto-import-v2-node-12",
     "ember-resolver": "^8.0.3",