diff --git a/test/lib/stack-client/stack-client.init.spec.js b/test/lib/stack-client/stack-client.init.spec.js
index 88be8f0da..d5a731e68 100644
--- a/test/lib/stack-client/stack-client.init.spec.js
+++ b/test/lib/stack-client/stack-client.init.spec.js
@@ -10,16 +10,24 @@ const { init } = stack
 
 describe('stack client', () => {
   describe('init', () => {
-    let cozyClient = new CozyClient({
-      stackClient: {
+    let cozyClient, params
+
+    const setup = async({ isLogged, isPublic }) => {
+      if (isLogged === undefined) {
+        throw new Error("Please define explicity isLogged in your tests.")
+      }
+      cozyClient = new CozyClient({
         token: { token: 'mytoken' },
         uri: 'https://test.mycozy.cloud'
+      })
+      cozyClient.isLogged = isLogged
+      params = {
+        cozyClient,
+        isPublic,
+        onCreate: function() {},
+        onDelete: function() {}
       }
-    })
-    let params = {
-      cozyClient,
-      onCreate: function() {},
-      onDelete: function() {}
+      await init(params)
     }
 
     beforeAll(async () => {
@@ -31,44 +39,24 @@ describe('stack client', () => {
     })
 
     it('should not called internal client', async () => {
-      await init(params)
+      await setup({ isLogged: false })
       expect(internal.init).not.toHaveBeenCalled()
     })
 
     it('should not have initialized the realtime if the user is not logged', async () => {
-      await init({
-        ...params,
-        cozyClient: {
-          ...cozyClient,
-          isLogged: false
-        }
-      })
+      await setup({ isLogged: false })
       expect(initializeRealtime).toHaveBeenCalledTimes(0)
     })
 
     it('should not have initialized the realtime if the user is not logged even if isPublic is set to false', async () => {
-      await init({
-        ...params,
-        isPublic: false,
-        cozyClient: {
-          ...cozyClient,
-          isLogged: false
-        }
-      })
+      await setup({ isLogged: false, isPublic: false})
       expect(initializeRealtime).toHaveBeenCalledTimes(0)
     })
 
     it('should have initialized the realtime is the user is logged', async () => {
-      const client = {
-        ...cozyClient,
-        isLogged: true
-      }
-      await init({
-        ...params,
-        cozyClient: client
-      })
+      await setup({ isLogged: true })
       expect(initializeRealtime).toHaveBeenCalled()
-      expect(initializeRealtime.mock.calls[0][0].cozyClient).toBe(client)
+      expect(initializeRealtime.mock.calls[0][0].cozyClient).toBe(cozyClient)
     })
   })
 })