Abstract: A method of testing a resiliently covered roll for surface flat spots involves rotating the roll and applying a film of water with a sponge roller to at least a portion of the length of the rotating roll surface. Then doctoring the rotating surface with a blade to remove the film, and detecting any flat spot by observing any puddle of water remaining after the doctoring. A testing device preferably is handheld and comprises a forwardly extending doctor blade below which is rotatably mounted the sponge roller. A rubber wipe roll for flexographic printing can be so advantageously tested for flat spots before installation.