@Test public void assemblerFile_2() {

    // WIP
    //   user1, all named graphs
    //   user2, all graphs
    //   user3, all named graphs +dft == all graphs
    //   any user, graph1
    AuthorizationService authService = (AuthorizationService)AssemblerUtils.build(DIR+"assem-security-registry-2.ttl", VocabSecurity.tSecurityRegistry);
    assertNotNull(authService);
    {
        SecurityContext sCxt = authService.get("user1");
        assertEquals(1, sCxt.visibleGraphs().size());
        Node x = sCxt.visibleGraphs().stream().findFirst().get();
        assertEquals(SecurityContext.allNamedGraphs, x);
    }
    {
        SecurityContext sCxt = authService.get("user2");
        assertEquals(1, sCxt.visibleGraphs().size());
        Node x = sCxt.visibleGraphs().stream().findFirst().get();
        assertEquals(SecurityContext.allGraphs, x);
    }
    {
        SecurityContext sCxt = authService.get("user3");
        assertEquals(1, sCxt.visibleGraphs().size());
        Node x = sCxt.visibleGraphs().stream().findFirst().get();
        assertEquals(SecurityContext.allGraphs, x);
    }
    {
        SecurityContext sCxt = authService.get("*");
        assertEquals(1, sCxt.visibleGraphs().size());
        String x = sCxt.visibleGraphNames().stream().findFirst().get();
        assertEquals("http://host/graphname1", x);
    }
}