refactor: notification handlers

Signed-off-by: Adam Setch <[email protected]>

Author: setchy

src/renderer/__helpers__/jest.setup.ts

@@ -9,7 +9,6 @@ import axios from 'axios';
  */
 axios.defaults.adapter = 'http';
 
-
 /**
  * Prevent the following errors with jest:
  * - ReferenceError: TextEncoder is not defined

src/renderer/utils/notifications/handlers/index.test.ts

@@ -0,0 +1,51 @@
+import { partialMockNotification } from '../../../__mocks__/partial-mocks';
+import type { SubjectType } from '../../../typesGitHub';
+import { checkSuiteHandler } from './checkSuite';
+import { commitHandler } from './commit';
+import { defaultHandler } from './default';
+import { discussionHandler } from './discussion';
+import { createNotificationHandler } from './index';
+import { issueHandler } from './issue';
+import { pullRequestHandler } from './pullRequest';
+import { releaseHandler } from './release';
+import { repositoryDependabotAlertsThreadHandler } from './repositoryDependabotAlertsThread';
+import { repositoryInvitationHandler } from './repositoryInvitation';
+import { repositoryVulnerabilityAlertHandler } from './repositoryVulnerabilityAlert';
+import { workflowRunHandler } from './workflowRun';
+
+describe('renderer/utils/notifications/handlers/index.ts', () => {
+  describe('createNotificationHandler', () => {
+    const cases: Array<[SubjectType, object]> = [
+      ['CheckSuite', checkSuiteHandler],
+      ['Commit', commitHandler],
+      ['Discussion', discussionHandler],
+      ['Issue', issueHandler],
+      ['PullRequest', pullRequestHandler],
+      ['Release', releaseHandler],
+      [
+        'RepositoryDependabotAlertsThread',
+        repositoryDependabotAlertsThreadHandler,
+      ],
+      ['RepositoryInvitation', repositoryInvitationHandler],
+      ['RepositoryVulnerabilityAlert', repositoryVulnerabilityAlertHandler],
+      ['WorkflowRun', workflowRunHandler],
+    ];
+
+    it.each(cases)(
+      'returns expected handler instance for %s',
+      (type, expected) => {
+        const notification = partialMockNotification({ type });
+        const handler = createNotificationHandler(notification);
+        expect(handler).toBe(expected);
+      },
+    );
+
+    it('falls back to default handler for unknown type', () => {
+      const notification = partialMockNotification({
+        type: 'SomeFutureType' as SubjectType,
+      });
+      const handler = createNotificationHandler(notification);
+      expect(handler).toBe(defaultHandler);
+    });
+  });
+});