test: 💍 Credential library deletion error test

ui/admin/tests/acceptance/credential-library/credential-library-test.js

@@ -1,5 +1,5 @@
 import { module, test } from 'qunit';
-import { visit, click } from '@ember/test-helpers';
+import { visit, click, find } from '@ember/test-helpers';
 import { setupApplicationTest } from 'ember-qunit';
 import setupMirage from 'ember-cli-mirage/test-support/setup-mirage';
 import { authenticateSession } from 'ember-simple-auth/test-support';
@@ -93,4 +93,22 @@ module('Acceptance | credential-library', function (hooks) {
     assert.equal(getCredentialLibraryCount(), count);
     assert.ok(confirmService.confirm.calledOnce);
   });
+
+  test('deleting a credential library which errors displays error messages', async function (assert) {
+    assert.expect(1);
+    this.server.del('/credential-libraries/:id', () => {
+      return new Response(
+        490,
+        {},
+        {
+          status: 490,
+          code: 'error',
+          message: 'Oops.',
+        }
+      );
+    });
+    await visit(urls.credentialLibrary);
+    await click('.rose-layout-page-actions .rose-dropdown-button-danger');
+    assert.ok(find('[role="alert"]').textContent.trim(), 'Oops.');
+  });
 });