chore(adoption-insights): migrate to Jest 30 (#3005)

Install Jest 30 peer dependencies as required by @backstage/cli 0.36.0
and fix test incompatibilities for Jest 30 and JSDOM 27.

Signed-off-by: Jon Koops <jonkoops@gmail.com>

Author: jonkoops

workspaces/adoption-insights/package.json

@@ -49,7 +49,12 @@
     "@backstage/e2e-test-utils": "^0.1.2",
     "@backstage/repo-tools": "^0.17.0",
     "@changesets/cli": "^2.27.1",
+    "@jest/environment-jsdom-abstract": "^30.3.0",
     "@playwright/test": "1.58.2",
+    "@types/jest": "^30.0.0",
+    "@types/jsdom": "^27.0.0",
+    "jest": "^30.3.0",
+    "jsdom": "^27.1.0",
     "knip": "^5.27.4",
     "node-gyp": "^9.0.0",
     "prettier": "^2.3.2",

workspaces/adoption-insights/plugins/adoption-insights-backend/src/controllers/EventApiController.test.ts

@@ -23,6 +23,7 @@ import {
   AnalyticsEvent,
 } from '@backstage/core-plugin-api';
 import { QUERY_TYPES, QueryParams } from '../types/event-request';
+import type { AuditorServiceEvent } from '@backstage/backend-plugin-api';
 import { toEndOfDayUTC, toStartOfDayUTC } from '../utils/date';
 import { TechDocsCount, TopTechDocsCount } from '../types/event';
 
@@ -70,8 +71,10 @@ const mockEvent: AnalyticsEvent = {
 };
 
 describe('trackEvents', () => {
-  let mockProcessIncomingEvents: jest.SpyInstance;
-  let mockProcessorAddEvent: jest.SpyInstance;
+  let mockProcessIncomingEvents: jest.Spied<
+    (events: AnalyticsEvent[], auditEvent: AuditorServiceEvent) => void
+  >;
+  let mockProcessorAddEvent: jest.Spied<EventBatchProcessor['addEvent']>;
 
   beforeEach(() => {
     controller = new EventApiController(
@@ -82,13 +85,10 @@ describe('trackEvents', () => {
     );
 
     mockProcessIncomingEvents = jest.spyOn(
-      controller,
-      'processIncomingEvents' as keyof EventApiController,
-    );
-    mockProcessorAddEvent = jest.spyOn(
-      mockProcessor,
-      'addEvent' as keyof EventBatchProcessor,
-    );
+      controller as any,
+      'processIncomingEvents',
+    ) as typeof mockProcessIncomingEvents;
+    mockProcessorAddEvent = jest.spyOn(mockProcessor, 'addEvent');
 
     req = {
       body: [{ action: 'click' }] as AnalyticsEvent[],

workspaces/adoption-insights/plugins/adoption-insights-backend/src/database/adapters/BaseAdapter.test.ts

@@ -21,8 +21,8 @@ import { Event } from '../../models/Event';
 import { mockServices } from '@backstage/backend-test-utils';
 
 describe('BaseAdapter', () => {
-  let infoLog: jest.SpyInstance;
-  let errorLog: jest.SpyInstance;
+  let infoLog: jest.Spied<typeof logger.info>;
+  let errorLog: jest.Spied<typeof logger.error>;
   const logger = mockServices.logger.mock();
   const mockKnex = {
     returning: jest.fn().mockReturnThis(),

workspaces/adoption-insights/plugins/adoption-insights-backend/src/domain/EventBatchProcessor.test.ts

@@ -21,7 +21,9 @@ import { EventDatabase } from '../database/event-database';
 import { Event } from '../models/Event';
 
 describe('EventBatchProcessor', () => {
-  let mockRetryOrStoreFailedEvent: jest.SpyInstance;
+  let mockRetryOrStoreFailedEvent: jest.Spied<
+    EventBatchProcessor['retryOrStoreFailedEvent']
+  >;
 
   const mockInsertEvents = jest.fn();
   const mockInsertFailedEvent = jest.fn();

workspaces/adoption-insights/plugins/adoption-insights/src/components/CatalogEntities/__tests__/CatalogEntities.test.tsx

@@ -222,6 +222,6 @@ describe('CatalogEntities', () => {
   it('should apply correct styling to table rows', () => {
     renderComponent();
     const rows = screen.getAllByRole('row').slice(1);
-    expect(rows[0]).toHaveStyle({ backgroundColor: 'inherit' });
+    expect(rows[0].style.backgroundColor).toBe('');
   });
 });

workspaces/adoption-insights/plugins/adoption-insights/src/components/Techdocs/__tests__/Techdocs.test.tsx

@@ -174,6 +174,6 @@ describe('Techdocs', () => {
 
   it('should apply correct styling to table rows', () => {
     const rows = screen.getAllByRole('row').slice(1);
-    expect(rows[0]).toHaveStyle({ backgroundColor: 'inherit' });
+    expect(rows[0].style.backgroundColor).toBe('');
   });
 });

workspaces/adoption-insights/plugins/adoption-insights/src/components/Templates/__tests__/Templates.test.tsx

@@ -176,6 +176,6 @@ describe('Templates', () => {
   it('should apply correct styling to table rows', () => {
     renderComponent();
     const rows = screen.getAllByRole('row').slice(1);
-    expect(rows[0]).toHaveStyle({ backgroundColor: 'inherit' });
+    expect(rows[0].style.backgroundColor).toBe('');
   });
 });