diff --git a/spec/integration/store/GlobalHeader.spec.js b/spec/integration/store/GlobalHeader.spec.js
index 60f2c254..38f6e917 100644
--- a/spec/integration/store/GlobalHeader.spec.js
+++ b/spec/integration/store/GlobalHeader.spec.js
@@ -3,17 +3,21 @@ import Vuex from 'vuex'
 import { ipcMain } from '~/spec/mock/electron'
 import GlobalHeader from '~/src/renderer/store/GlobalHeader'
 
-const state = {
-  accounts: [],
-  changing: false,
-  hide: false
+const state = () => {
+  return {
+    accounts: [],
+    changing: false,
+    hide: false
+  }
 }
 
-const initState = {
-  namespaced: true,
-  state: state,
-  actions: GlobalHeader.actions,
-  mutations: GlobalHeader.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: GlobalHeader.actions,
+    mutations: GlobalHeader.mutations
+  }
 }
 
 const routerState = {
@@ -34,7 +38,7 @@ describe('GlobalHeader', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        GlobalHeader: initState,
+        GlobalHeader: initStore(),
         route: routerState
       }
     })
@@ -90,8 +94,8 @@ describe('GlobalHeader', () => {
       })
     })
     it('should be switched', async () => {
-      await store.dispatch('GlobalHeader/switchHide', true)
-      expect(store.state.GlobalHeader.hide).toEqual(true)
+      const hide = await store.dispatch('GlobalHeader/switchHide', true)
+      expect(hide).toEqual(true)
     })
   })
 })
diff --git a/spec/integration/store/Preferences/Appearance.spec.js b/spec/integration/store/Preferences/Appearance.spec.js
index 9f7f40f4..bd7637e8 100644
--- a/spec/integration/store/Preferences/Appearance.spec.js
+++ b/spec/integration/store/Preferences/Appearance.spec.js
@@ -8,23 +8,27 @@ import DefaultFonts from '@/utils/fonts'
 import Appearance from '@/store/Preferences/Appearance'
 import { ipcMain } from '~/spec/mock/electron'
 
-const state = {
-  appearance: {
-    theme: Theme.Light.key,
-    fontSize: 14,
-    displayNameStyle: DisplayStyle.DisplayNameAndUsername.value,
-    timeFormat: TimeFormat.Absolute.value,
-    customThemeColor: LightTheme,
-    font: DefaultFonts[0]
-  },
-  fonts: []
+const state = () => {
+  return {
+    appearance: {
+      theme: Theme.Light.key,
+      fontSize: 14,
+      displayNameStyle: DisplayStyle.DisplayNameAndUsername.value,
+      timeFormat: TimeFormat.Absolute.value,
+      customThemeColor: LightTheme,
+      font: DefaultFonts[0]
+    },
+    fonts: []
+  }
 }
 
-const Preferences = {
-  namespaced: true,
-  state: state,
-  actions: Appearance.actions,
-  mutations: Appearance.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: Appearance.actions,
+    mutations: Appearance.mutations
+  }
 }
 
 const App = {
@@ -43,8 +47,8 @@ describe('Preferences/Appearance', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        Preferences,
-        App
+        Preferences: initStore(),
+        App: App
       }
     })
     ipcMain.once('update-preferences', (event, config) => {
diff --git a/spec/integration/store/Preferences/Language.spec.js b/spec/integration/store/Preferences/Language.spec.js
index 9ad2e1ec..4b5ace76 100644
--- a/spec/integration/store/Preferences/Language.spec.js
+++ b/spec/integration/store/Preferences/Language.spec.js
@@ -4,17 +4,21 @@ import { ipcMain } from '~/spec/mock/electron'
 import Language from '@/store/Preferences/Language'
 import DefaultLanguage from '~/src/constants/language'
 
-const state = {
-  language: {
-    language: DefaultLanguage.en.key
+const state = () => {
+  return {
+    language: {
+      language: DefaultLanguage.en.key
+    }
   }
 }
 
-const initState = {
-  namespaced: true,
-  state: state,
-  actions: Language.actions,
-  mutations: Language.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state,
+    actions: Language.actions,
+    mutations: Language.mutations
+  }
 }
 
 describe('Preferences/Language', () => {
@@ -26,7 +30,7 @@ describe('Preferences/Language', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        Language: initState
+        Language: initStore()
       }
     })
   })
diff --git a/spec/integration/store/Preferences/Notification.spec.js b/spec/integration/store/Preferences/Notification.spec.js
index 860e5efd..5386d49e 100644
--- a/spec/integration/store/Preferences/Notification.spec.js
+++ b/spec/integration/store/Preferences/Notification.spec.js
@@ -3,22 +3,26 @@ import Vuex from 'vuex'
 import { ipcMain } from '~/spec/mock/electron'
 import Notification from '@/store/Preferences/Notification'
 
-const state = {
-  notification: {
-    notify: {
-      reply: true,
-      reblog: true,
-      favourite: true,
-      follow: true
+const state = () => {
+  return {
+    notification: {
+      notify: {
+        reply: true,
+        reblog: true,
+        favourite: true,
+        follow: true
+      }
     }
   }
 }
 
-const initState = {
-  namespaced: true,
-  state: state,
-  actions: Notification.actions,
-  mutations: Notification.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: Notification.actions,
+    mutations: Notification.mutations
+  }
 }
 
 const App = {
@@ -37,7 +41,7 @@ describe('Preferences/Notification', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        Notification: initState,
+        Notification: initStore(),
         App: App
       }
     })
diff --git a/spec/integration/store/TimelineSpace/Contents/Home.spec.js b/spec/integration/store/TimelineSpace/Contents/Home.spec.js
index ddf82c0e..adf9c6c7 100644
--- a/spec/integration/store/TimelineSpace/Contents/Home.spec.js
+++ b/spec/integration/store/TimelineSpace/Contents/Home.spec.js
@@ -6,21 +6,25 @@ import Home from '~/src/renderer/store/TimelineSpace/Contents/Home'
 jest.genMockFromModule('megalodon')
 jest.mock('megalodon')
 
-const state = {
-  lazyLoading: false,
-  heading: true,
-  timeline: [],
-  unreadTimeline: [],
-  filter: '',
-  showReblogs: true,
-  showReplies: true
+const state = () => {
+  return {
+    lazyLoading: false,
+    heading: true,
+    timeline: [],
+    unreadTimeline: [],
+    filter: '',
+    showReblogs: true,
+    showReplies: true
+  }
 }
 
-const initState = {
-  namespaced: true,
-  state: state,
-  actions: Home.actions,
-  mutations: Home.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: Home.actions,
+    mutations: Home.mutations
+  }
 }
 
 const timelineState = {
@@ -42,7 +46,7 @@ describe('Home', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        Home: initState,
+        Home: initStore(),
         TimelineSpace: timelineState
       }
     })
@@ -102,8 +106,6 @@ describe('Home', () => {
         await store.dispatch('Home/lazyFetchTimeline', { id: 20 })
         expect(store.state.Home.lazyLoading).toEqual(false)
         expect(store.state.Home.timeline).toEqual([
-          { id: 1 },
-          { id: 2 },
           { id: 19 },
           { id: 18 }
         ])
diff --git a/spec/integration/store/TimelineSpace/HeaderMenu.spec.js b/spec/integration/store/TimelineSpace/HeaderMenu.spec.js
index d14bb108..f2c3b536 100644
--- a/spec/integration/store/TimelineSpace/HeaderMenu.spec.js
+++ b/spec/integration/store/TimelineSpace/HeaderMenu.spec.js
@@ -6,16 +6,20 @@ import HeaderMenu from '~/src/renderer/store/TimelineSpace/HeaderMenu'
 jest.genMockFromModule('megalodon')
 jest.mock('megalodon')
 
-const state = {
-  title: 'Home',
-  reload: false
+const state = () => {
+  return {
+    title: 'Home',
+    reload: false
+  }
 }
 
-const initState = {
-  namespaced: true,
-  state: state,
-  actions: HeaderMenu.actions,
-  mutations: HeaderMenu.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: HeaderMenu.actions,
+    mutations: HeaderMenu.mutations
+  }
 }
 
 const timelineState = {
@@ -37,7 +41,7 @@ describe('HeaderMenu', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        HeaderMenu: initState,
+        HeaderMenu: initStore(),
         TimelineSpace: timelineState
       }
     })
diff --git a/spec/integration/store/TimelineSpace/Modals/Jump.spec.js b/spec/integration/store/TimelineSpace/Modals/Jump.spec.js
index 1ecf5722..37974cfd 100644
--- a/spec/integration/store/TimelineSpace/Modals/Jump.spec.js
+++ b/spec/integration/store/TimelineSpace/Modals/Jump.spec.js
@@ -4,56 +4,59 @@ import i18n from '~/src/config/i18n'
 import router from '@/router'
 import Jump from '~/src/renderer/store/TimelineSpace/Modals/Jump'
 
-const state = {
-  modalOpen: true,
-  channel: '',
-  defaultChannelList: [
-    {
+const state = () => {
+  return {
+    modalOpen: true,
+    channel: '',
+    defaultChannelList: [
+      {
+        name: i18n.t('side_menu.home'),
+        path: 'home'
+      },
+      {
+        name: i18n.t('side_menu.notification'),
+        path: 'notifications'
+      },
+      {
+        name: i18n.t('side_menu.favourite'),
+        path: 'favourites'
+      },
+      {
+        name: i18n.t('side_menu.local'),
+        path: 'local'
+      },
+      {
+        name: i18n.t('side_menu.public'),
+        path: 'public'
+      },
+      {
+        name: i18n.t('side_menu.hashtag'),
+        path: 'hashtag'
+      },
+      {
+        name: i18n.t('side_menu.search'),
+        path: 'search'
+      },
+      {
+        name: i18n.t('side_menu.direct'),
+        path: 'direct-messages'
+      }
+    ],
+    listChannelList: [],
+    tagChannelList: [],
+    selectedChannel: {
       name: i18n.t('side_menu.home'),
       path: 'home'
-    },
-    {
-      name: i18n.t('side_menu.notification'),
-      path: 'notifications'
-    },
-    {
-      name: i18n.t('side_menu.favourite'),
-      path: 'favourites'
-    },
-    {
-      name: i18n.t('side_menu.local'),
-      path: 'local'
-    },
-    {
-      name: i18n.t('side_menu.public'),
-      path: 'public'
-    },
-    {
-      name: i18n.t('side_menu.hashtag'),
-      path: 'hashtag'
-    },
-    {
-      name: i18n.t('side_menu.search'),
-      path: 'search'
-    },
-    {
-      name: i18n.t('side_menu.direct'),
-      path: 'direct-messages'
     }
-  ],
-  listChannelList: [],
-  tagChannelList: [],
-  selectedChannel: {
-    name: i18n.t('side_menu.home'),
-    path: 'home'
   }
 }
-
-const initState = {
-  namespaced: true,
-  state: state,
-  actions: Jump.actions,
-  mutations: Jump.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: Jump.actions,
+    mutations: Jump.mutations
+  }
 }
 
 const timelineState = {
@@ -74,7 +77,7 @@ describe('Jump', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        Jump: initState,
+        Jump: initStore(),
         TimelineSpace: timelineState
       }
     })
diff --git a/spec/integration/store/TimelineSpace/SideMenu.spec.js b/spec/integration/store/TimelineSpace/SideMenu.spec.js
index 1a1280a6..916d75a8 100644
--- a/spec/integration/store/TimelineSpace/SideMenu.spec.js
+++ b/spec/integration/store/TimelineSpace/SideMenu.spec.js
@@ -7,22 +7,26 @@ import SideMenu from '~/src/renderer/store/TimelineSpace/SideMenu'
 jest.genMockFromModule('megalodon')
 jest.mock('megalodon')
 
-const state = {
-  unreadHomeTimeline: false,
-  unreadNotifications: false,
-  unreadLocalTimeline: false,
-  unreadDirectMessagesTimeline: false,
-  unreadPublicTimeline: false,
-  lists: [],
-  tags: [],
-  collapse: false
+const state = () => {
+  return {
+    unreadHomeTimeline: false,
+    unreadNotifications: false,
+    unreadLocalTimeline: false,
+    unreadDirectMessagesTimeline: false,
+    unreadPublicTimeline: false,
+    lists: [],
+    tags: [],
+    collapse: false
+  }
 }
 
-const initState = {
-  namespaced: true,
-  state: state,
-  actions: SideMenu.actions,
-  mutations: SideMenu.mutations
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: SideMenu.actions,
+    mutations: SideMenu.mutations
+  }
 }
 
 describe('SideMenu', () => {
@@ -34,7 +38,7 @@ describe('SideMenu', () => {
     localVue.use(Vuex)
     store = new Vuex.Store({
       modules: {
-        SideMenu: initState
+        SideMenu: initStore()
       }
     })
     Mastodon.mockClear()