@kingstinct/react-native-healthkit/lib/module/hooks/useIsHealthDataAvailable.test.js

React Native bindings for HealthKit

import { renderHook } from '@testing-library/react-native';
import waitForNextUpdate from '../test-utils';
describe('useIsHealthDataAvailable', () => {
  test('should return false', async () => {
    const useIsHealthDataAvailable = (await import('./useIsHealthDataAvailable')).default;
    const {
      default: Native
    } = await import('../native-types');
    jest.spyOn(Native, 'isHealthDataAvailable').mockReturnValue(Promise.resolve(false));
    const {
      result
    } = renderHook(useIsHealthDataAvailable);
    await waitForNextUpdate();
    expect(result.current).toBe(false);
  });
  test('should return true', async () => {
    const useIsHealthDataAvailable = (await import('./useIsHealthDataAvailable')).default;
    const {
      default: Native
    } = await import('../native-types');
    jest.spyOn(Native, 'isHealthDataAvailable').mockReturnValue(Promise.resolve(true));
    const {
      result
    } = renderHook(useIsHealthDataAvailable);
    await waitForNextUpdate();
    expect(result.current).toBe(true);
  });
  test('should return null before initalizing', async () => {
    const useIsHealthDataAvailable = (await import('./useIsHealthDataAvailable')).default;
    const {
      result
    } = renderHook(useIsHealthDataAvailable);
    expect(result.current).toBe(null);
    await waitForNextUpdate();
  });
});
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