Application testing is disclosed. A definition of a test to be performed on a subject application is received in a generic form not specific to the subject application. The test is performed by exchanging data with the subject application, as required to perform the test, using a test connector application associated with the subject application to do at least one of (1) convert an input data to be supplied to the subject application during the test from a generic data format not specific to the subject application into an application-specific data format associated with the subject application, if the application-specific data format is different than the generic data format and (2) normalize an output data received from the subject application in the application-specific data format into the generic data format not specific to the subject application, if the application-specific data format is different than the generic data format.