/**
* Check the format of the VCARD skeleton (begin, end, version),
* remove those lines, and return the remaining lines (sorted).
* Utility for use in __toString() tests.
* @arg $vcard_string The vcard output to check
* @return An array of the remaining lines (no newlines).
*/
public function checkAndRemoveSkeleton($vcard_string)
{
$lines = explode("\n", VCardParser::unfold4($vcard_string));
$this->assertGreaterThan(4, count($lines));
$line = array_pop($lines);
$this->assertEmpty($line);
$line = array_pop($lines);
$this->assertEquals(self::$vcard_end, $line);
$line = array_shift($lines);
$this->assertEquals(self::$vcard_begin, $line);
$line = array_shift($lines);
$this->assertEquals(self::$vcard_version, $line);
sort($lines);
return $lines;
}
