Abstract: A test device, a testing method, and a test dolly for measuring the adhesion strength of a coating applied to a substrate. The test dolly is attached to the coating, the dolly is coupled to the testing device, and progressively increasing force is applied to the testing device until the dolly breaks free. The testing device includes a beam and engagement features, forming a lever arm about a fulcrum comprising a rocker or other contact surface resting upon the coated substrate, to impart a force on the dolly normal to the coated surface. An indicator measures the force required to detach the dolly from the substrate. The dolly has a straight-sided base portion.