fix install_endpoint test to use bundled package

x-pack/test/fleet_api_integration/apis/epm/install_endpoint.ts

@@ -9,14 +9,14 @@ import expect from '@kbn/expect';
 import { FtrProviderContext } from '../../../api_integration/ftr_provider_context';
 import { skipIfNoDockerRegistry } from '../../helpers';
 import { setupFleetAndAgents } from '../agents/services';
+import { bundlePackage, removeBundledPackages } from './install_bundled';
 
 export default function (providerContext: FtrProviderContext) {
   /**
    * There are a few features that are only currently supported for the Endpoint
    * package due to security concerns.
    */
-  // Failing: See https://github.com/elastic/kibana/issues/156941
-  describe.skip('Install endpoint package', () => {
+  describe('Install endpoint package', () => {
     const { getService } = providerContext;
     skipIfNoDockerRegistry(providerContext);
     setupFleetAndAgents(providerContext);
@@ -25,8 +25,9 @@ export default function (providerContext: FtrProviderContext) {
     const dockerServers = getService('dockerServers');
     const server = dockerServers.get('registry');
     const es = getService('es');
+    const log = getService('log');
     const pkgName = 'endpoint';
-    let pkgVersion: string;
+    const pkgVersion = '8.6.1';
 
     const transforms = [
       {
@@ -39,12 +40,21 @@ export default function (providerContext: FtrProviderContext) {
       },
     ];
 
+    const installPackage = async (name: string, version: string) => {
+      await supertest
+        .post(`/api/fleet/epm/packages/${name}/${version}`)
+        .set('kbn-xsrf', 'xxxx')
+        .send({ force: true });
+    };
+
     before(async () => {
       if (!server.enabled) return;
-      // The latest endpoint package is already installed by default in our FTR config,
-      // just get the most recent version number.
-      const getResp = await supertest.get(`/api/fleet/epm/packages/${pkgName}`).expect(200);
-      pkgVersion = getResp.body.response.version;
+      await bundlePackage('endpoint-8.6.1');
+      await installPackage('endpoint', '8.6.1');
+    });
+    after(async () => {
+      await uninstallPackage('endpoint', '8.6.1');
+      await removeBundledPackages(log);
     });
 
     describe('install', () => {