Implements hook_node_grants().
function node_test_node_grants($account, $op) {
// Give everyone full grants so we don't break other node tests.
// Our node access tests asserts three realms of access.
// See testGrantAlter().
return array(
'test_article_realm' => array(
1,
),
'test_page_realm' => array(
1,
),
'test_alter_realm' => array(
2,
),
);
}