Four part hill test is a method for determining the competency of a covenant. A covenant is enforceable only if the covenant provides protection to the promisee. That is, a person seeking to enforce the covenant must have a legitimate interest in protecting business goodwill or trade.[Cukjati v. Burkett, 772 S.W.2d 215 (Tex. App. Dallas 1989)].
The following are the requisites of a covenant which is provided by four part hill test:
1.A covenant must provide for the protection of the promisee;
2.A covenant must not be oppressive to the promisor with respect to time, territory, and activity;
3.A covenant must not be injurious to the public through prevention of competition or by depriving the community of needed goods; and
4. A covenant can be enforced only if the promisee gives consideration for something of value.