function test_insert_posts_generated_turtle_with_types()
 {
     $fake_request_factory = new FakeRequestFactory();
     $fake_request = new FakeHttpRequest(new HttpResponse());
     $fake_request_factory->register('POST', "http://example.org/store/meta", $fake_request);
     $dt = new DataTable("http://example.org/store", new FakeCredentials(), $fake_request_factory);
     $dt->map('http://example.org/name', 'name');
     $dt->map('http://example.org/person', 'person');
     $dt->set('name', 'scooby');
     $dt->insert('person');
     $g = $dt->get_insert_graph('person');
     $this->assertEquals($g->to_turtle(), $fake_request->get_body());
 }