    @Test
    public void manipulatesWithBindings() throws Exception {

        final Directives dirs = new Directives().add("f");
        final Flow flow = new XeFlow(dirs, "/f");
        flow.binding("emp", "Employee");
        flow.binding("one", "One");
        MatcherAssert.assertThat(
            XhtmlMatchers.xhtml(new Xembler(dirs).xml()),
            XhtmlMatchers.hasXPaths(
                "/f/bindings/binding[name='emp' and type='Employee']",
                "/f/bindings/binding[name='one' and type='One']"
            )
        );
    }