@Test
public void testExecutionFailure_UnixFamily() throws Exception {

	Assume.assumeTrue( TestUtils.isUnix());
	int exitCode = ProgramUtils.executeCommand(
			Logger.getLogger( getClass().getName()),
			Arrays.asList( "/bin/sh", "-c", "apt-get-update" ),
			null,
			new HashMap<String,String>( 0 ),
			null, null);
	Assert.assertNotSame( 0, exitCode );
	// Either it requires root privileges, or it is not installed.
}