// test methods
public void testGet() throws Exception {
InstanceManager im = new InstanceManager();
String im_cn = "org.jostraca.util.InstanceManager";
String ps_cn = "org.jostraca.util.PropertySet";
Object im_o = im.getInstance( im_cn );
assertTrue( im_o instanceof InstanceManager );
Object ps_o = im.getInstance( ps_cn );
assertTrue( ps_o instanceof PropertySet );
Object im_o2 = im.getInstance( im_cn );
assertEquals( im_o, im_o2 );
Object ps_o2 = im.getInstance( ps_cn );
assertEquals( ps_o, ps_o2 );
}