@Test
public void testUnTarGzFilesOnly() throws MojoExecutionException, IOException {

    // PREPARE
    final String name = this.getClass().getSimpleName() + "-testUnTarGzFilesOnly";
    final File archive = File.createTempFile(name + "-", ".tar.gz");
    final File destDir = new File(Utils4J.getTempDir(), name);
    init("files-only.tar.gz", archive, destDir);
    // TEST
    EventStoreDownloadMojo.unTarGz(archive, destDir);
    // VERIFY
    assertAllExists(destDir);
}