--- /dev/null
+<?php
+
+/*
+ * This file is part of the Behat.
+ * (c) Konstantin Kudryashov <ever.zet@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Behat\Behat\Definition\Exception;
+
+use InvalidArgumentException;
+
+/**
+ * Represents an exception caused by an unrecognised definition pattern.
+ *
+ * @author Konstantin Kudryashov <ever.zet@gmail.com>
+ */
+final class UnknownPatternException extends InvalidArgumentException implements DefinitionException
+{
+ /**
+ * @var string
+ */
+ private $pattern;
+
+ /**
+ * Initializes exception.
+ *
+ * @param string $message
+ * @param integer $pattern
+ */
+ public function __construct($message, $pattern)
+ {
+ $this->pattern = $pattern;
+
+ parent::__construct($message);
+ }
+
+ /**
+ * Returns pattern that caused exception.
+ *
+ * @return string
+ */
+ public function getPattern()
+ {
+ return $this->pattern;
+ }
+}