How to use basic-auth

Comprehensive basic-auth code examples:

How to use basic-auth.mockReturnValue:

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})

describe('when a user supplies correct username/password', () => {
  beforeEach(() => {
    jest.clearAllMocks()
    basicAuth.mockReturnValue(userDetails)
    authentication({}, res, next)
  })

  it('should not return a console error', () => {