Fix looking up abilities

ember-can/package.json

@@ -91,6 +91,7 @@
     "@typescript-eslint/parser": "^7.8.0",
     "babel-plugin-ember-template-compilation": "^2.2.5",
     "concurrently": "^8.2.2",
+    "ember-resolver": "^12.0.1",
     "ember-source": "^5.8.0",
     "ember-template-lint": "^6.0.0",
     "eslint": "^8.56.0",
@@ -120,11 +121,13 @@
     "app-js": {
       "./helpers/can.js": "./dist/_app_/helpers/can.js",
       "./helpers/cannot.js": "./dist/_app_/helpers/cannot.js",
+      "./initializers/setup-ember-can.js": "./dist/_app_/initializers/setup-ember-can.js",
       "./services/abilities.js": "./dist/_app_/services/abilities.js"
     }
   },
   "peerDependencies": {
     "@ember/string": "^3.1.1",
-    "ember-source": "^3.28.0 || ^4.0.0 || >=5.0.0"
+    "ember-source": "^3.28.0 || ^4.0.0 || >=5.0.0",
+    "ember-resolver": ">= 8.0.0"
   }
 }

ember-can/rollup.config.mjs

@@ -21,6 +21,7 @@ export default {
     // is aligned to the config here.
     // See https://github.com/embroider-build/embroider/blob/main/docs/v2-faq.md#how-can-i-define-the-public-exports-of-my-addon
     addon.publicEntrypoints([
+      'initializers/**/*.js',
       'index.js',
       'ability.ts',
       'helpers/**/*.js',
@@ -30,7 +31,11 @@ export default {
     // These are the modules that should get reexported into the traditional
     // "app" tree. Things in here should also be in publicEntrypoints above, but
     // not everything in publicEntrypoints necessarily needs to go here.
-    addon.appReexports(['helpers/**/*.js', 'services/**/*.js']),
+    addon.appReexports([
+      'helpers/**/*.js',
+      'initializers/**/*.js',
+      'services/**/*.js',
+    ]),
 
     // Follow the V2 Addon rules about dependencies. Your code can import from
     // `dependencies` and `peerDependencies` as well as standard Ember-provided

ember-can/src/initializers/setup-ember-can.js

@@ -0,0 +1,14 @@
+import Resolver from 'ember-resolver';
+
+Resolver.reopen({
+  init() {
+    this._super();
+    this.pluralizedTypes = {
+      ...this.pluralizedTypes,
+      ability: 'abilities',
+    };
+  },
+});
+
+export function initialize() {}
+export default { initialize };

test-app/app/abilities/post.ts

@@ -0,0 +1,7 @@
+import { Ability } from 'ember-can';
+
+export default class extends Ability {
+  get canCreate() {
+    return true;
+  }
+}

test-app/app/templates/application.hbs

@@ -0,0 +1,7 @@
+<h1>ember-can tests</h1>
+
+{{#if (can "create post")}}
+  <p id="post-ability">
+    This only shows up if the ability was loaded.
+  </p>
+{{/if}}

test-app/config/ember-try.js

@@ -32,6 +32,7 @@ module.exports = async function () {
         name: 'ember-lts-4.8',
         npm: {
           devDependencies: {
+            'ember-resolver': '^11.0.0',
             'ember-source': '~4.8.0',
           },
         },

test-app/package.json

@@ -78,7 +78,7 @@
     "ember-modifier": "^4.1.0",
     "ember-page-title": "^8.2.3",
     "ember-qunit": "^8.0.2",
-    "ember-resolver": "^11.0.1",
+    "ember-resolver": "^12.0.1",
     "ember-source": "~5.8.0",
     "ember-source-channel-url": "^3.0.0",
     "ember-template-lint": "^6.0.0",

test-app/tests/acceptance/application-test.ts

@@ -0,0 +1,14 @@
+import { module, test } from 'qunit';
+import { visit, currentURL } from '@ember/test-helpers';
+import { setupApplicationTest } from 'test-app/tests/helpers';
+
+module('Acceptance | application', function (hooks) {
+  setupApplicationTest(hooks);
+
+  test('visiting /', async function (assert) {
+    await visit('/');
+
+    assert.strictEqual(currentURL(), '/');
+    assert.dom('#post-ability').exists();
+  });
+});

test-app/tests/unit/abilities/post-test.ts

@@ -0,0 +1,11 @@
+import { module, test } from 'qunit';
+import { setupTest } from 'ember-qunit';
+
+module('Unit | Ability | post', function (hooks) {
+  setupTest(hooks);
+
+  test('it exists', function (assert) {
+    const ability = this.owner.lookup('ability:post');
+    assert.ok(ability);
+  });
+});