Upload component = new Upload(null, validate, decoder, tracker, null);
expect(decoder.getFileUpload("test")).andReturn(uploadedFile);
expect(uploadedFile.getFileName()).andReturn("test").atLeastOnce();
validate.validate(uploadedFile);
expectLastCall().andThrow(new ValidationException("an error"));
tracker.recordError(component, "an error");
replay();
component.processSubmission(formSupport, "test");