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<?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 3.6.6
 */
class PHPUnit_Framework_Constraint_ExceptionMessage extends PHPUnit_Framework_Constraint
{
    /**
     * @var int
     */
    protected $expectedMessage;

/**
     * @param string $expected
     */
    public function __construct($expected)
    {
        parent::__construct();
        $this->expectedMessage = $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)
    {
        return strpos($other->getMessage(), $this->expectedMessage) !== false;
    }

/**
     * 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' contains '%s'",
            $other->getMessage(),
            $this->expectedMessage
        );
    }

/**
     * @return string
     */
    public function toString()
    {
        return 'exception message contains ';
    }
}