Fix linting

ember-cli-build.js

@@ -7,10 +7,8 @@ module.exports = function (defaults) {
     // Add options here
     'ember-cli-lazysizes': {
       lazyClass: 'lazy',
-      plugins: [
-        'bgset'
-      ]
-    }
+      plugins: ['bgset'],
+    },
   });
 
   /*

index.js

@@ -31,15 +31,23 @@ module.exports = {
       trees.push(tree);
     }
 
-    let lazyNodeTree = this.treeGenerator(path.dirname(require.resolve('lazysizes')));
+    let lazyNodeTree = this.treeGenerator(
+      path.dirname(require.resolve('lazysizes'))
+    );
     if (this.plugins.length > 0) {
-      let include = this.plugins.map((plugin) => `plugins/${plugin}/ls.${plugin}.js`);
+      let include = this.plugins.map(
+        (plugin) => `plugins/${plugin}/ls.${plugin}.js`
+      );
       trees.push(transform(find(lazyNodeTree, { include })));
     }
-    trees.push(transform(map(find(lazyNodeTree, 'lazysizes.js'), (content) => {
-      return `window.lazySizesConfig = ${JSON.stringify(this.addonOptions)};
+    trees.push(
+      transform(
+        map(find(lazyNodeTree, 'lazysizes.js'), (content) => {
+          return `window.lazySizesConfig = ${JSON.stringify(this.addonOptions)};
           ${content}`;
-    })));
+        })
+      )
+    );
     return mergeTrees(trees, { overwrite: true });
-  }
+  },
 };

tests/acceptance/lazysizes-test.js

@@ -1,14 +1,14 @@
-import { test } from 'qunit';
-import moduleForAcceptance from '../../tests/helpers/module-for-acceptance';
+import { module, test } from 'qunit';
+import { visit } from '@ember/test-helpers';
+import { setupApplicationTest } from 'ember-qunit';
 
-moduleForAcceptance('Acceptance | lazysizes');
+module('Acceptance | lazysizes', function (hooks) {
+  setupApplicationTest(hooks);
 
-test('it creates the `lazySizes` global and overwrittes the `lazyClass`', function(assert) {
-  visit('/');
+  test('visiting /lazysizes', async function (assert) {
+    await visit('/');
 
-  andThen(function() {
     assert.ok(window.lazySizes);
     assert.equal(window.lazySizesConfig.lazyClass, 'lazy');
   });
 });
-