function test_where_with_uri_pseudo_variable_and_optional()
{
$dt = new DataTable("http://example.org/store");
$dt->map('http://example.org/name', 'name');
$dt->map('http://example.org/age', 'age');
$dt->select('name');
$dt->optional('age');
$dt->where('_uri', 'http://example.org/scooby');
$this->assertEquals("select ?name ?age where {<http://example.org/scooby> <http://example.org/name> ?name. optional {<http://example.org/scooby> <http://example.org/age> ?age. } }", $dt->get_sparql());
}
