public void testShouldInterpolateWhenNoEnvVarsVariables() {
   HostContextFactory context = new HostContextFactory();
   assertEquals("file:///home/dir", context.interpolate("file:///home/dir"));
 }
 public void testShouldInterpolateWithEnvVarsVariables() {
   HostContextFactory context = new HostContextFactory();
   assertEquals(
       "file:///" + System.getenv("JBOSS_HOME") + "/conf",
       context.interpolate("file:///${env.JBOSS_HOME}/conf"));
 }