diff --git a/spec/renderer/integration/store/TimelineSpace/Contents/Lists/Show.spec.ts b/spec/renderer/integration/store/TimelineSpace/Contents/Lists/Show.spec.ts
new file mode 100644
index 00000000..a1528471
--- /dev/null
+++ b/spec/renderer/integration/store/TimelineSpace/Contents/Lists/Show.spec.ts
@@ -0,0 +1,198 @@
+import { Response, Status, Account, Application } from 'megalodon'
+import mockedMegalodon from '~/spec/mock/megalodon'
+import { createLocalVue } from '@vue/test-utils'
+import Vuex from 'vuex'
+import Show, { ShowState } from '@/store/TimelineSpace/Contents/Lists/Show'
+import { LoadPositionWithList } from '@/types/loadPosition'
+
+jest.mock('megalodon')
+
+const account: Account = {
+  id: '1',
+  username: 'h3poteto',
+  acct: 'h3poteto@pleroma.io',
+  display_name: 'h3poteto',
+  locked: false,
+  created_at: '2019-03-26T21:30:32',
+  followers_count: 10,
+  following_count: 10,
+  statuses_count: 100,
+  note: 'engineer',
+  url: 'https://pleroma.io',
+  avatar: '',
+  avatar_static: '',
+  header: '',
+  header_static: '',
+  emojis: [],
+  moved: null,
+  fields: null,
+  bot: false
+}
+
+const status1: Status = {
+  id: '1',
+  uri: 'http://example.com',
+  url: 'http://example.com',
+  account: account,
+  in_reply_to_id: null,
+  in_reply_to_account_id: null,
+  reblog: null,
+  content: 'hoge',
+  created_at: '2019-03-26T21:40:32',
+  emojis: [],
+  replies_count: 0,
+  reblogs_count: 0,
+  favourites_count: 0,
+  reblogged: null,
+  favourited: null,
+  muted: null,
+  sensitive: false,
+  spoiler_text: '',
+  visibility: 'public',
+  media_attachments: [],
+  mentions: [],
+  tags: [],
+  card: null,
+  application: {
+    name: 'Web'
+  } as Application,
+  language: null,
+  pinned: null
+}
+
+const status2: Status = {
+  id: '2',
+  uri: 'http://example.com',
+  url: 'http://example.com',
+  account: account,
+  in_reply_to_id: null,
+  in_reply_to_account_id: null,
+  reblog: null,
+  content: 'fuga',
+  created_at: '2019-03-26T21:40:32',
+  emojis: [],
+  replies_count: 0,
+  reblogs_count: 0,
+  favourites_count: 0,
+  reblogged: null,
+  favourited: null,
+  muted: null,
+  sensitive: false,
+  spoiler_text: '',
+  visibility: 'public',
+  media_attachments: [],
+  mentions: [],
+  tags: [],
+  card: null,
+  application: {
+    name: 'Web'
+  } as Application,
+  language: null,
+  pinned: null
+}
+
+let state = (): ShowState => {
+  return {
+    lazyLoading: false,
+    heading: true,
+    timeline: [],
+    unreadTimeline: [],
+    filter: ''
+  }
+}
+
+const initStore = () => {
+  return {
+    namespaced: true,
+    state: state(),
+    actions: Show.actions,
+    mutations: Show.mutations
+  }
+}
+
+const timelineState = {
+  namespaced: true,
+  state: {
+    account: {
+      accessToken: 'token',
+      baseURL: 'http://localhost'
+    }
+  }
+}
+
+describe('Lists/Show', () => {
+  let store
+  let localVue
+
+  beforeEach(() => {
+    localVue = createLocalVue()
+    localVue.use(Vuex)
+    store = new Vuex.Store({
+      modules: {
+        Show: initStore(),
+        TimelineSpace: timelineState
+      }
+    })
+    mockedMegalodon.mockClear()
+  })
+
+  describe('fetchTimeline', () => {
+    it('should be updated', async () => {
+      const mockClient = {
+        get: (_path: string, _params: object) => {
+          return new Promise<Response<Array<Status>>>(resolve => {
+            const res: Response<Array<Status>> = {
+              data: [status1],
+              status: 200,
+              statusText: 'OK',
+              headers: {}
+            }
+            resolve(res)
+          })
+        }
+      }
+
+      mockedMegalodon.mockImplementation(() => mockClient)
+      await store.dispatch('Show/fetchTimeline', '1')
+      expect(store.state.Show.timeline).toEqual([status1])
+    })
+  })
+
+  describe('lazyFetchTimeline', () => {
+    beforeAll(() => {
+      state = () => {
+        return {
+          lazyLoading: false,
+          heading: true,
+          timeline: [status1],
+          unreadTimeline: [],
+          filter: ''
+        }
+      }
+    })
+    it('should be updated', async () => {
+      const mockClient = {
+        get: (_path: string, _params: object) => {
+          return new Promise<Response<Array<Status>>>(resolve => {
+            const res: Response<Array<Status>> = {
+              data: [status2],
+              status: 200,
+              statusText: 'OK',
+              headers: {}
+            }
+            resolve(res)
+          })
+        }
+      }
+
+      mockedMegalodon.mockImplementation(() => mockClient)
+      const loadPosition: LoadPositionWithList = {
+        status: status1,
+        list_id: '1'
+      }
+      await store.dispatch('Show/lazyFetchTimeline', loadPosition)
+      expect(store.state.Show.timeline).toEqual([status1, status2])
+      expect(store.state.Show.lazyLoading).toEqual(false)
+    })
+  })
+})