@applicaster/zapp-react-native-utils/appUtils/contextKeysManager/__tests__/getKeys/failure.test.ts

Applicaster Zapp React Native utilities package

import { ContextKeysManager } from "../..";

describe("Context Keys Manager - getKeys", () => {
  it("returns null if all keys are invalid", async () => {
    // setup
    const keys = [null];

    const contextManager = new ContextKeysManager({});

    const getKey = jest
      .spyOn(contextManager, "getKey")
      .mockResolvedValueOnce(null);

    // run
    const result = await contextManager.getKeys(keys);

    // verify
    const map = new Map();
    map.set(keys[0], null);

    expect(result).toEqual(map);

    expect(getKey).toHaveBeenCalledTimes(1);
    expect(getKey.mock.calls).toEqual([[null]]);
  });

  it("returns null if all keys are invalid", async () => {
    // setup
    const keys = [null, undefined];

    const contextManager = new ContextKeysManager({});

    const getKey = jest
      .spyOn(contextManager, "getKey")
      .mockResolvedValueOnce(null)
      .mockResolvedValueOnce(null);

    // run
    const result = await contextManager.getKeys(keys);

    // verify
    const map = new Map();
    map.set(keys[0], null);
    map.set(keys[1], null);

    expect(result).toEqual(map);

    expect(getKey).toHaveBeenCalledTimes(2);
    expect(getKey.mock.calls).toEqual([[null], [undefined]]);
  });
});