@gravity-ui/data-source/build/esm/react/__tests__/DataManagerContext.test.js

A wrapper around data fetching

import React from 'react';
import { renderHook } from '@testing-library/react';
import { DataManagerContext, useDataManager } from '../DataManagerContext';
import { jsx as _jsx } from "react/jsx-runtime";
describe('useDataManager', function () {
  it('should return dataManager from context', function () {
    var mockDataManager = {
      invalidateTag: jest.fn(),
      invalidateTags: jest.fn(),
      invalidateSource: jest.fn(),
      resetSource: jest.fn(),
      invalidateParams: jest.fn(),
      resetParams: jest.fn(),
      invalidateSourceTags: jest.fn()
    };
    var wrapper = function wrapper(_ref) {
      var children = _ref.children;
      return /*#__PURE__*/_jsx(DataManagerContext.Provider, {
        value: mockDataManager,
        children: children
      });
    };
    var _renderHook = renderHook(function () {
        return useDataManager();
      }, {
        wrapper: wrapper
      }),
      result = _renderHook.result;
    expect(result.current).toBe(mockDataManager);
  });
  it('should throw an error when dataManager is not provided', function () {
    try {
      renderHook(function () {
        return useDataManager();
      });
    } catch (error) {
      expect(error).toBeInstanceOf(Error);
      // Just to be sure that the error is from the right place
      expect(error.message).toBe('DataManager is not provided by context. Use DataManagerContext.Provider to do it');
    }
  });
});
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