protected function assertConversion($input, $expect, $unit = null, $test_negative = true)
{
$length = HTMLPurifier_Length::make($input);
if ($expect !== false) {
$expectl = HTMLPurifier_Length::make($expect);
} else {
$expectl = false;
}
$to_unit = $unit !== null ? $unit : $expectl->getUnit();
$converter = new HTMLPurifier_UnitConverter(4, 10);
$result = $converter->convert($length, $to_unit);
if (!$result || !$expectl) {
$this->assertIdentical($result, $expectl);
} else {
$this->assertIdentical($result->toString(), $expectl->toString());
}
$converter = new HTMLPurifier_UnitConverter(4, 10, true);
$result = $converter->convert($length, $to_unit);
if (!$result || !$expectl) {
$this->assertIdentical($result, $expectl);
} else {
$this->assertIdentical($result->toString(), $expectl->toString(), 'BCMath substitute: %s');
}
if ($test_negative) {
$this->assertConversion("-{$input}", $expect === false ? false : "-{$expect}", $unit, false);
}
}
/**
* @param $s1 First string to compare
* @param $s2 Second string to compare
* @param $expect 0 for $s1 == $s2, 1 for $s1 > $s2 and -1 for $s1 < $s2
*/
protected function assertComparison($s1, $s2, $expect = 0)
{
$l1 = HTMLPurifier_Length::make($s1);
$l2 = HTMLPurifier_Length::make($s2);
$r1 = $l1->compareTo($l2);
$r2 = $l2->compareTo($l1);
$this->assertIdentical($r1 == 0 ? 0 : ($r1 > 0 ? 1 : -1), $expect);
$this->assertIdentical($r2 == 0 ? 0 : ($r2 > 0 ? 1 : -1), -$expect);
}
/**
* @param string $string
* @param HTMLPurifier_Config $config
* @param HTMLPurifier_Context $context
* @return bool|string
*/
public function validate($string, $config, $context)
{
$string = $this->parseCDATA($string);
// Optimizations
if ($string === '') {
return false;
}
if ($string === '0') {
return '0';
}
if (strlen($string) === 1) {
return false;
}
$length = HTMLPurifier_Length::make($string);
if (!$length->isValid()) {
return false;
}
if ($this->min) {
$c = $length->compareTo($this->min);
if ($c === false) {
return false;
}
if ($c < 0) {
return false;
}
}
if ($this->max) {
$c = $length->compareTo($this->max);
if ($c === false) {
return false;
}
if ($c > 0) {
return false;
}
}
return $length->toString();
}
