frisby.create('POST invalid email address')
    .post(tc.url + '/user/enroll',
          { 'firstName' : TU1_FN,
            'lastName' : TU1_LN,
            'email' : "invalid.email",
            'password' : 'testUser' })
    .expectStatus(400)
    .expectHeader('Content-Type', 'application/json; charset=utf-8')
    .expectJSONTypes({'error' : String})
    .toss()