@applicaster/zapp-react-native-utils/reactUtils/createContext/__tests__/index-no-react.test.js

Applicaster Zapp React Native utilities package

jest.mock("create-react-context", () =>
  jest.fn(() => ({
    Consumer: jest.fn(),
    Provider: jest.fn(),
  }))
);

jest.mock("react", () => ({
  ...jest.requireActual("react"),
  createContext: undefined,
}));

const { createContext } = require("../index");
const createReactContext = require("create-react-context");

describe("when react context api is not defined", () => {
  it("uses the polyfill", () => {
    createContext({ foo: "bar" });

    expect(createReactContext).toHaveBeenCalledWith(
      expect.objectContaining({
        foo: "bar",
        setFoo: expect.any(Function),
      })
    );
  });
});