// need to make sure old test artifacts that have been
// created are being deleted since this can lead to
// unstable test behavior
Verifier verifier = new Verifier(TEST_ROOT.getAbsolutePath(), getMavenSettings());
verifier.deleteArtifact(
systemProperties.getProperty("groupId", DEFAULT_TEST_GROUP_ID),
systemProperties.getProperty("artifactId", DEFAULT_TEST_ARTIFACT_ID),
systemProperties.getProperty("version", DEFAULT_TEST_VERSION),
null);
verifier.deleteDirectory(systemProperties.getProperty("artifactId", DEFAULT_TEST_ARTIFACT_ID));