PAGI\Client\ChannelStatus::toString PHP Method

    public static function toString($status)
    {
        switch ($status) {
            case self::DOWN_AVAILABLE:
                return 'Channel is down and available';
            case self::DOWN_RESERVED:
                return 'Channel is down, but reserved';
            case self::OFF_HOOK:
                return 'Channel is off hook';
            case self::DIGITS_DIALED:
                return 'Digits (or equivalent) have been dialed';
            case self::LINE_RINGING:
                return 'Line is ringing';
            case self::REMOTE_RINGING:
                return 'Remote end is ringing';
            case self::LINE_UP:
                return 'Line is up';
            case self::LINE_BUSY:
                return 'Line is busy';
            default:
                return false;
        }
    }

 /**
  * @test
  */
 public function can_correct_status()
 {
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::DOWN_AVAILABLE), 'Channel is down and available');
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::DOWN_RESERVED), 'Channel is down, but reserved');
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::OFF_HOOK), 'Channel is off hook');
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::DIGITS_DIALED), 'Digits (or equivalent) have been dialed');
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::LINE_RINGING), 'Line is ringing');
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::REMOTE_RINGING), 'Remote end is ringing');
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::LINE_UP), 'Line is up');
     $this->assertEquals(ChannelStatus::toString(ChannelStatus::LINE_BUSY), 'Line is busy');
     $this->assertFalse(ChannelStatus::toString(123123));
 }