feat(jest): 100% coverage for store/files/actions.ts

store/files/actions.test.ts

@@ -1,8 +1,56 @@
 import * as actions from '~/store/files/actions'
+import { DataStateType } from '~/store/dataState/types'
 
 describe('actions.default.handler', () => {
   test('0', () => {
     const result: any = actions.default.handler()
     expect(result).toMatchSnapshot()
   })
 })
+describe('actions.default.fetchFiles', () => {
+  test('file state empty', async () => {
+    const commit = jest.fn()
+    const rootState: any = {
+      dataState: {
+        files: DataStateType.Empty,
+      },
+    }
+
+    await actions.default.fetchFiles({ commit, rootState })
+
+    expect(commit).toHaveBeenCalledWith(
+      'dataState/setDataState',
+      { key: 'files', value: DataStateType.Loading },
+      { root: true },
+    )
+  })
+  test('file state loading', async () => {
+    const commit = jest.fn()
+    const rootState: any = {
+      dataState: {
+        files: DataStateType.Loading,
+      },
+    }
+
+    await actions.default.fetchFiles({ commit, rootState })
+
+    expect(commit).not.toHaveBeenCalled()
+  })
+  test('file state ready', async () => {
+    // In order to trigger the last condition (else), we cannot use ones that have been covered (Empty, Loading, Updating); hence we used Ready for the DataStateType.
+    const commit = jest.fn()
+    const rootState: any = {
+      dataState: {
+        files: DataStateType.Ready,
+      },
+    }
+
+    await actions.default.fetchFiles({ commit, rootState })
+
+    expect(commit).toHaveBeenCalledWith(
+      'dataState/setDataState',
+      { key: 'files', value: DataStateType.Updating },
+      { root: true },
+    )
+  })
+})