}
@Test public void coreStep() throws Exception {
ArtifactArchiver aa = new ArtifactArchiver("x.jar");
aa.setAllowEmptyArchive(true);
assertRoundTrip(new CoreStep(aa), "step([$class: 'ArtifactArchiver', allowEmptyArchive: true, artifacts: 'x.jar', defaultExcludes: true, excludes: '', fingerprint: false, onlyIfSuccessful: false])");
}