Viewing file:  DescribedAs.php (1.81 KB) -rw-r--r--
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<?php
namespace Hamcrest\Core;
/*
Copyright (c) 2009 hamcrest.org
*/
use Hamcrest\BaseMatcher;
use Hamcrest\Description;
use Hamcrest\Matcher;
/**
* Provides a custom description to another matcher.
*/
class DescribedAs extends BaseMatcher
{
private $_descriptionTemplate;
private $_matcher;
private $_values;
const ARG_PATTERN = '/%([0-9]+)/';
public function __construct($descriptionTemplate, Matcher $matcher, array $values)
{
$this->_descriptionTemplate = $descriptionTemplate;
$this->_matcher = $matcher;
$this->_values = $values;
}
public function matches($item)
{
return $this->_matcher->matches($item);
}
public function describeTo(Description $description)
{
$textStart = 0;
while (preg_match(self::ARG_PATTERN, $this->_descriptionTemplate, $matches, PREG_OFFSET_CAPTURE, $textStart)) {
$text = $matches[0][0];
$index = $matches[1][0];
$offset = $matches[0][1];
$description->appendText(substr($this->_descriptionTemplate, $textStart, $offset - $textStart));
$description->appendValue($this->_values[$index]);
$textStart = $offset + strlen($text);
}
if ($textStart < strlen($this->_descriptionTemplate)) {
$description->appendText(substr($this->_descriptionTemplate, $textStart));
}
}
/**
* Wraps an existing matcher and overrides the description when it fails.
*
* @factory ...
*/
public static function describedAs(/* $description, Hamcrest\Matcher $matcher, $values... */)
{
$args = func_get_args();
$description = array_shift($args);
$matcher = array_shift($args);
$values = $args;
return new self($description, $matcher, $values);
}
}
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