backend-defaults,test-utils: use, export, and test health service

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/backend-test-utils/src/next/wiring/TestBackend.test.ts

@@ -242,6 +242,15 @@ describe('TestBackend', () => {
     expect(res.body).toEqual({ message: 'pong' });
   });
 
+  it('should expose health check endpoints', async () => {
+    const { server } = await startTestBackend({ features: [] });
+
+    const res = await request(server).get('/.backstage/health/v1/liveness');
+
+    expect(res.status).toEqual(200);
+    expect(res.body).toEqual({ status: 'ok' });
+  });
+
   it('should provide extension point implementations', async () => {
     expect.assertions(3);
 

packages/backend-test-utils/src/next/wiring/TestBackend.ts

@@ -37,6 +37,7 @@ import express from 'express';
 // Direct internal import to avoid duplication
 // eslint-disable-next-line @backstage/no-forbidden-package-imports
 import { InternalBackendFeature } from '@backstage/backend-plugin-api/src/wiring/types';
+import { createHealthRouter } from '@backstage/backend-defaults/rootHttpRouter';
 
 /** @public */
 export interface TestBackendOptions<TExtensionPoints extends any[]> {
@@ -73,6 +74,7 @@ export const defaultServiceFactories = [
   mockServices.lifecycle.factory(),
   mockServices.logger.factory(),
   mockServices.permissions.factory(),
+  mockServices.rootHealth.factory(),
   mockServices.rootLifecycle.factory(),
   mockServices.rootLogger.factory(),
   mockServices.scheduler.factory(),
@@ -251,15 +253,18 @@ export async function startTestBackend<TExtensionPoints extends any[]>(
       config: coreServices.rootConfig,
       lifecycle: coreServices.rootLifecycle,
       rootLogger: coreServices.rootLogger,
+      health: coreServices.rootHealth,
     },
-    async factory({ config, lifecycle, rootLogger }) {
+    async factory({ config, lifecycle, rootLogger, health }) {
       const router = DefaultRootHttpRouter.create();
       const logger = rootLogger.child({ service: 'rootHttpRouter' });
 
       const app = express();
 
       const middleware = MiddlewareFactory.create({ config, logger });
+      const healthRouter = createHealthRouter({ health });
 
+      app.use(healthRouter);
       app.use(router.handler());
       app.use(middleware.notFound());
       app.use(middleware.error());