@Test
public void shouldProvideNamespaceUri() throws Exception {

    assertThat(session.getNamespaceURI("mode"), is("http://www.modeshape.org/1.0"));
    assertThat(session.getNamespaceURI("jcr"), is("http://www.jcp.org/jcr/1.0"));
    assertThat(session.getNamespaceURI("mix"), is("http://www.jcp.org/jcr/mix/1.0"));
    assertThat(session.getNamespaceURI("nt"), is("http://www.jcp.org/jcr/nt/1.0"));
    assertThat(session.getNamespaceURI("sv"), is("http://www.jcp.org/jcr/sv/1.0"));
    // assertThat(session.getNamespaceURI("xml"), is("http://www.w3.org/XML/1998/namespace"));
}