Abstract. In property testing, the goal is to distinguish between objects that satisfy some desirable property and objects that are far from satisfying it, after examining only a small, random sample of the object in question. Although much of the literature has focused on properties of graphs, very recently several strong results on hypergraphs have appeared. We revisit a logical result obtained by Alon et al. [1] in the light of these recent results. The main result is the testability of all properties (of relational structures) expressible in sentences of Ramsey’s class. Key words: property testing, logic, Ramsey’s class