/**
  * thread parser test
  */
 function test_parse_thread()
 {
     $text = file_get_contents(__DIR__ . '/../src/imap_thread.txt');
     $object = new rcube_result_thread('INBOX', $text);
     $this->assertSame(false, $object->is_empty(), "Object is empty");
     $this->assertSame(false, $object->is_error(), "Object is error");
     $this->assertSame(1721, $object->max(), "Max message UID");
     $this->assertSame(1, $object->min(), "Min message UID");
     $this->assertSame(1721, $object->count_messages(), "Messages count");
     $this->assertSame(1691, $object->exists(1720, true), "Message exists");
     $this->assertSame(true, $object->exists(1720), "Message exists (bool)");
     $this->assertSame(1, $object->get_element('FIRST'), "Get first element");
     $this->assertSame(1719, $object->get_element('LAST'), "Get last element");
     $this->assertSame(14, (int) $object->get_element(2), "Get specified element");
     $clone = clone $object;
     $clone->filter(array(7));
     $clone = $clone->get_tree();
     $this->assertSame(1, count($clone), "Structure check");
     $this->assertSame(3, count($clone[7]), "Structure check");
     $this->assertSame(0, count($clone[7][12]), "Structure check");
     $this->assertSame(1, count($clone[7][167]), "Structure check");
     $this->assertSame(0, count($clone[7][167][197]), "Structure check");
     $this->assertSame(2, count($clone[7][458]), "Structure check");
     $this->assertSame(1, count($clone[7][458][460]), "Structure check");
     $this->assertSame(0, count($clone[7][458][460][463]), "Structure check");
     $this->assertSame(1, count($clone[7][458][464]), "Structure check");
     $this->assertSame(0, count($clone[7][458][464][471]), "Structure check");
     $object->filter(array(784));
     $this->assertSame(118, $object->count_messages(), "Messages filter");
     $this->assertSame(1, $object->count(), "Messages filter (count)");
 }