public function testMergeOccurrences()
{
$item = array('id' => 'test', 'occurrences' => array(array('file' => 'a.php', 'line' => 2)));
$data = $this->adapter->merge(array(), $item);
$item = array('id' => 'test', 'occurrences' => array(array('file' => 'b.php', 'line' => 55)));
$expected = array('test' => array('id' => 'test', 'ids' => array(), 'translated' => null, 'flags' => array(), 'comments' => array(), 'occurrences' => array(array('file' => 'a.php', 'line' => 2), array('file' => 'b.php', 'line' => 55))));
$result = $this->adapter->merge($data, $item);
$this->assertEqual($expected, $result);
}