recoil/cjs/hooks/__tests__/Recoil_useRecoilInterface-test.js.flow

Recoil - A state management library for React

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @emails oncall+recoil
 * @flow strict-local
 * @format
 */
'use strict';

const {
  getRecoilTestFn
} = require('../../__test_utils__/Recoil_TestingUtils');

let React, useRef, useState, act, atom, counterAtom, renderElements, useRecoilInterface;
const testRecoil = getRecoilTestFn(() => {
  React = require('react');
  ({
    useRef,
    useState
  } = require('react'));
  ({
    act
  } = require('ReactTestUtils'));
  atom = require('../../recoil_values/Recoil_atom');
  ({
    renderElements
  } = require('../../__test_utils__/Recoil_TestingUtils'));
  ({
    useRecoilInterface
  } = require('../Recoil_Hooks'));
  counterAtom = atom({
    key: `counterAtom`,
    default: 0
  });
});
testRecoil('Interface for non-react code - useRecoilState', () => {
  declare function nonReactCode(recoilInterface: any): any;
  let updateValue;
  declare var Component: () => any;
  const container = renderElements(<Component />);
  expect(container.textContent).toEqual('0');
  act(() => updateValue(1));
  expect(container.textContent).toEqual('1');
});
testRecoil('Interface for non-react code - useRecoilStateNoThrow', () => {
  declare function nonReactCode(recoilInterface: any): any;
  let updateValue;
  declare var Component: () => any;
  const container = renderElements(<Component />);
  expect(container.textContent).toEqual('0');
  act(() => updateValue(1));
  expect(container.textContent).toEqual('1');
});
testRecoil('Interface for non-react code - useRecoilValue, useSetRecoilState', () => {
  declare function nonReactCode(recoilInterface: any): any;
  let updateValue;
  declare var Component: () => any;
  const container = renderElements(<Component />);
  expect(container.textContent).toEqual('0');
  act(() => updateValue(1));
  expect(container.textContent).toEqual('1');
});
testRecoil('Interface for non-react code - useRecoilValueNoThrow', () => {
  declare function nonReactCode(recoilInterface: any): any;
  let updateValue;
  declare var Component: () => any;
  const container = renderElements(<Component />);
  expect(container.textContent).toEqual('0');
  act(() => updateValue(1));
  expect(container.textContent).toEqual('1');
}); // Test that we always get a consistent instance of the interface object and
// hooks from useRecoilInterface() (at least for a given <AppRoot> store)

testRecoil('Consistent interface object', () => {
  let setValue;
  declare var Component: () => any;
  const out = renderElements(<Component />);
  expect(out.textContent).toBe('0');
  act(() => setValue(1)); // Force a re-render of the Component

  expect(out.textContent).toBe('1');
});