jest.mock("../../redux/store", () => {
  return {
    store: {
      dispatch: jest.fn(),
      getState: jest.fn(() => ({ NO: "NO" }))
    }
  };
});

import { connectivityReducer, DEFAULT_STATE } from "../reducer";
import { Actions } from "../../constants";
import { pingOK, pingNO } from "..";
import { store } from "../../redux/store";

describe("connectivity reducer", () => {
  const newState = () => {
    const action = { type: Actions.PING_START, payload: { id: "yep" } };
    return connectivityReducer(DEFAULT_STATE, action);
  };

  it("starts a ping", () => {
    const ping = newState().pings["yep"];
    if (ping) {
      expect(ping.kind).toBe("pending");
    } else {
      fail();
    }

  });

  it("handles the PING_OK action", () => {
    const action = { type: Actions.PING_OK, payload: { id: "yep", at: 123 } };
    const state = connectivityReducer(newState(), action);
    const { yep } = state.pings;
    expect(yep).toBeTruthy();
    if (yep) {
      expect(yep.kind).toEqual("complete");
    }
  });

  it("broadcasts PING_OK", () => {
    pingOK("yep", 123);
    expect(store.dispatch).toHaveBeenCalledWith({
      payload: { at: 123, id: "yep" },
      type: "PING_OK",
    });
  });

  it("broadcasts PING_NO", () => {
    pingNO("yep", 123);
    expect(store.dispatch).toHaveBeenCalledWith({
      payload: { id: "yep", at: 123 },
      type: "PING_NO"
    });
  });

  it("marks pings as failed when PING_NO is dispatched", () => {
    const action = { type: Actions.PING_NO, payload: { id: "yep", at: 123 } };
    const state = connectivityReducer(newState(), action);
    const { yep } = state.pings;
    expect(yep).toBeTruthy();
    if (yep) {
      expect(yep.kind).toEqual("timeout");
    }
  });
});