Injecting Mocks into Functions Example

injecting-mocks-into-functions-example

import * as module from 'module';

jest.mock('service-making-a-http-request', () =>
  Object.assign(require.requireActual('service-making-a-http-request'), {
    externalService: {
      execute: jest
        .fn()
        // function - 'test label' data
        .mockResolvedValueOnce({
          body: {
            results: [1, 2, 3]
          }
        })
    }
  })
);