reducerTest.js

it('should return iMList once fetched', () => {
  const action = {
    type: FETCH_IM_LIST_SUCCESS,
    payload: {
      data: {
        ok: true,
        ims: [
          {
            id: "D4VAKS265",
            created: 1491558944,
            is_im: true,
            is_org_shared: false,
            user: "U02EJ97U3",
            is_user_deleted: false,
          },
          {
            id: "D4D9RH129",
            created: 1488536442,
            is_im: true,
            is_org_shared: false,
            user: "U02GMV04R",
            is_user_deleted: false,
          },
        ],
      },
    },
  };
  expect(slackData({ iMList: [] }, action)).toMatchSnapshot();
});