--- /dev/null
+<?php
+/*
+ * This file is part of PHPUnit.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * @since Class available since Release 4.3.0
+ */
+class PHPUnit_Framework_Constraint_ExceptionMessageRegExp extends PHPUnit_Framework_Constraint
+{
+ /**
+ * @var int
+ */
+ protected $expectedMessageRegExp;
+
+ /**
+ * @param string $expected
+ */
+ public function __construct($expected)
+ {
+ parent::__construct();
+ $this->expectedMessageRegExp = $expected;
+ }
+
+ /**
+ * Evaluates the constraint for parameter $other. Returns true if the
+ * constraint is met, false otherwise.
+ *
+ * @param Exception $other
+ *
+ * @return bool
+ */
+ protected function matches($other)
+ {
+ $match = PHPUnit_Util_Regex::pregMatchSafe($this->expectedMessageRegExp, $other->getMessage());
+
+ if (false === $match) {
+ throw new PHPUnit_Framework_Exception(
+ "Invalid expected exception message regex given: '{$this->expectedMessageRegExp}'"
+ );
+ }
+
+ return 1 === $match;
+ }
+
+ /**
+ * Returns the description of the failure
+ *
+ * The beginning of failure messages is "Failed asserting that" in most
+ * cases. This method should return the second part of that sentence.
+ *
+ * @param mixed $other Evaluated value or object.
+ *
+ * @return string
+ */
+ protected function failureDescription($other)
+ {
+ return sprintf(
+ "exception message '%s' matches '%s'",
+ $other->getMessage(),
+ $this->expectedMessageRegExp
+ );
+ }
+
+ /**
+ * @return string
+ */
+ public function toString()
+ {
+ return 'exception message matches ';
+ }
+}