Add test

packages/server/src/api/routes/tests/user.spec.js

@@ -171,9 +171,28 @@ describe("/users", () => {
         .expect("Content-Type", /json/)
       expect(res.body.message).toEqual('User synced.')
     })
+
+
+    it("should sync the user when a previous user is specified", async () => {
+      const app1 = await config.createApp('App 1')
+      const app2 = await config.createApp('App 2')
+
+      let user = await config.createUser(
+        undefined,
+        undefined,
+        undefined,
+        undefined,
+        false,
+        true,
+        { [app1.appId]: 'ADMIN' })
+      let res = await request
+        .post(`/api/users/metadata/sync/${user._id}`)
+        .set(config.defaultHeaders())
+        .send({ previousUser: { ...user, roles: { ...user.roles, [app2.appId]: 'BASIC' } } })
+        .expect(200)
+        .expect("Content-Type", /json/)
+
+      expect(res.body.message).toEqual('User synced.')
+    })
   })
-
-
-
-
 })