[7.x] [jest] use circus runner for the integration tests (#102782)

jest.config.integration.js

@@ -13,7 +13,6 @@ module.exports = {
   rootDir: '.',
   roots: ['<rootDir>/src', '<rootDir>/packages'],
   testMatch: ['**/integration_tests**/*.test.{js,mjs,ts,tsx}'],
-  testRunner: 'jasmine2',
   testPathIgnorePatterns: preset.testPathIgnorePatterns.filter(
     (pattern) => !pattern.includes('integration_tests')
   ),

src/core/server/http/integration_tests/request.test.ts

@@ -163,24 +163,24 @@ describe('KibanaRequest', () => {
 
   describe('events', () => {
     describe('aborted$', () => {
-      it('emits once and completes when request aborted', async (done) => {
+      it('emits once and completes when request aborted', async () => {
         expect.assertions(1);
         const { server: innerServer, createRouter } = await server.setup(setupDeps);
         const router = createRouter('/');
 
         const nextSpy = jest.fn();
-        router.get({ path: '/', validate: false }, async (context, request, res) => {
-          request.events.aborted$.subscribe({
-            next: nextSpy,
-            complete: () => {
-              expect(nextSpy).toHaveBeenCalledTimes(1);
-              done();
-            },
-          });
 
-          // prevents the server to respond
-          await delay(30000);
-          return res.ok({ body: 'ok' });
+        const done = new Promise<void>((resolve) => {
+          router.get({ path: '/', validate: false }, async (context, request, res) => {
+            request.events.aborted$.subscribe({
+              next: nextSpy,
+              complete: resolve,
+            });
+
+            // prevents the server to respond
+            await delay(30000);
+            return res.ok({ body: 'ok' });
+          });
         });
 
         await server.start();
@@ -191,6 +191,8 @@ describe('KibanaRequest', () => {
           .end();
 
         setTimeout(() => incomingRequest.abort(), 50);
+        await done;
+        expect(nextSpy).toHaveBeenCalledTimes(1);
       });
 
       it('completes & does not emit when request handled', async () => {
@@ -299,25 +301,24 @@ describe('KibanaRequest', () => {
         expect(completeSpy).toHaveBeenCalledTimes(1);
       });
 
-      it('emits once and completes when response is aborted', async (done) => {
+      it('emits once and completes when response is aborted', async () => {
         expect.assertions(2);
         const { server: innerServer, createRouter } = await server.setup(setupDeps);
         const router = createRouter('/');
 
         const nextSpy = jest.fn();
 
-        router.get({ path: '/', validate: false }, async (context, req, res) => {
-          req.events.completed$.subscribe({
-            next: nextSpy,
-            complete: () => {
-              expect(nextSpy).toHaveBeenCalledTimes(1);
-              done();
-            },
-          });
+        const done = new Promise<void>((resolve) => {
+          router.get({ path: '/', validate: false }, async (context, req, res) => {
+            req.events.completed$.subscribe({
+              next: nextSpy,
+              complete: resolve,
+            });
 
-          expect(nextSpy).not.toHaveBeenCalled();
-          await delay(30000);
-          return res.ok({ body: 'ok' });
+            expect(nextSpy).not.toHaveBeenCalled();
+            await delay(30000);
+            return res.ok({ body: 'ok' });
+          });
         });
 
         await server.start();
@@ -327,6 +328,8 @@ describe('KibanaRequest', () => {
           // end required to send request
           .end();
         setTimeout(() => incomingRequest.abort(), 50);
+        await done;
+        expect(nextSpy).toHaveBeenCalledTimes(1);
       });
     });
   });

src/core/server/saved_objects/migrationsv2/integration_tests/migration.test.ts

@@ -71,6 +71,12 @@ describe('migration v2', () => {
             },
           ],
         },
+        // reporting loads headless browser, that prevents nodejs process from exiting.
+        xpack: {
+          reporting: {
+            enabled: false,
+          },
+        },
       },
       {
         oss,

src/core/server/saved_objects/migrationsv2/integration_tests/migration_7.7.2_xpack_100k.test.ts

@@ -70,6 +70,12 @@ describe('migration from 7.7.2-xpack with 100k objects', () => {
             },
           ],
         },
+        // reporting loads headless browser, that prevents nodejs process from exiting.
+        xpack: {
+          reporting: {
+            enabled: false,
+          },
+        },
       },
       {
         oss,

src/core/server/ui_settings/integration_tests/index.test.ts

@@ -17,7 +17,7 @@ const kibanaVersion = Env.createDefault(REPO_ROOT, getEnvOptions()).packageInfo.
 const savedObjectIndex = `.kibana_${kibanaVersion}_001`;
 
 describe('uiSettings/routes', function () {
-  jest.setTimeout(10000);
+  jest.setTimeout(120_000);
 
   beforeAll(startServers);
   /* eslint-disable jest/valid-describe */

src/core/server/ui_settings/integration_tests/lib/servers.ts

@@ -75,8 +75,10 @@ export function getServices() {
 
 export async function stopServers() {
   services = null!;
-  if (servers) {
+  if (esServer) {
     await esServer.stop();
+  }
+  if (kbn) {
     await kbn.stop();
   }
 }