added test

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

@@ -102,5 +102,15 @@ export default function (providerContext: FtrProviderContext) {
         .auth(testUsers.fleet_read_only.username, testUsers.fleet_read_only.password)
         .expect(200);
     });
+
+    it('returns package info in item field when calling without version', async function () {
+      // this will install through the registry by default
+      await installPackage(testPkgName, testPkgVersion);
+      const res = await supertest.get(`/api/fleet/epm/packages/${testPkgName}`).expect(200);
+      const packageInfo = res.body.item;
+      // the uploaded version will have this description
+      expect(packageInfo.name).to.equal('apache');
+      await uninstallPackage(testPkgName, testPkgVersion);
+    });
   });
 }