What is the test for a plaintiff to claim they were the victim of an unlawful hostile work environment?

a plaintiff claiming he or she was the victim of an unlawful hostile work environment must elicit evidence from which a reasonable trier of fact could conclude (1) that the workplace was permeated with discriminatory intimidation that was sufficiently severe or pervasive to alter the conditions of his or her work environment, and (2) that a specific basis exists for imputing the conduct that created the hostile environment to the employer.

Mack v. Otis Elevator Co., 326 F.3d 116, 122 (2d Cir.2003) (internal quotation marks

[660 F.3d 107]