Horde_Imap_Client_Data_Fetch::setEnvelope PHP Method

    public function setEnvelope($data)
    {
        $this->_data[Horde_Imap_Client::FETCH_ENVELOPE] = is_array($data) ? new Horde_Imap_Client_Data_Envelope($data) : $data;
    }

 public function testClientSideThreadOrderedSubject()
 {
     $data = array(array('Sat, 26 Jul 2008 21:10:00 -0500 (CDT)', 'Test e-mail 1'), array('Sat, 26 Jul 2008 21:10:00 -0500 (CDT)', 'Test e-mail 2'), array('Sat, 26 Jul 2008 22:29:20 -0500 (CDT)', 'Re: Test e-mail 2'), array('Sat, 26 Jul 2008 21:10:00 -0500 (CDT)', 'Test e-mail 1'));
     $results = new Horde_Imap_Client_Fetch_Results();
     foreach ($data as $key => $val) {
         $data = new Horde_Imap_Client_Data_Fetch();
         $data->setEnvelope(new Horde_Imap_Client_Data_Envelope(array('date' => $val[0], 'subject' => $val[1])));
         $results[++$key] = $data;
     }
     $thread = $this->sort_ob->threadOrderedSubject($results, true);
     foreach (array(1, 4) as $val) {
         $t = $thread->getThread($val);
         $this->assertEquals(array(1, 4), array_keys($t));
         $this->assertEquals(1, $t[1]->base);
         $this->assertEquals(1, $t[1]->last);
         $this->assertEquals(0, $t[1]->level);
         $this->assertEquals(1, $t[4]->base);
         $this->assertEquals(1, $t[4]->last);
         $this->assertEquals(1, $t[4]->level);
     }
     foreach (array(2, 3) as $val) {
         $t = $thread->getThread($val);
         $this->assertEquals(array(2, 3), array_keys($t));
         $this->assertEquals(2, $t[2]->base);
         $this->assertEquals(1, $t[2]->last);
         $this->assertEquals(0, $t[2]->level);
         $this->assertEquals(2, $t[3]->base);
         $this->assertEquals(1, $t[3]->last);
         $this->assertEquals(1, $t[3]->level);
     }
 }