frisby.create('POST missing firstName')
    .post(tc.url + '/user/enroll',
          { 'lastName' : TU1_LN,
            'email' : TU1_EMAIL,
            'password' : TU1_PW })
    .expectStatus(400)
    .expectHeader('Content-Type', 'application/json; charset=utf-8')
    .expectJSON({'error' : 'Undefined First Name'})
    .toss()