function test_add_json_appends_new_triples()
{
$g = new SimpleGraph();
$g->add_resource_triple('http://example.org/subj', 'http://example.org/pred1', 'http://example.org/obj1');
$g->add_json($this->_single_triple_json);
$this->assertEquals(2, count($g->get_triples()));
$index = $g->get_index();
$this->assertEquals("http://example.org/obj1", $index['http://example.org/subj']['http://example.org/pred1'][0]['value']);
$this->assertEquals("foo", $index['http://example.org/subj']['http://example.org/pred'][0]['value']);
$this->assertEquals("literal", $index['http://example.org/subj']['http://example.org/pred'][0]['type']);
}
