<?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.
*/
namespace PHPUnit\Framework\Constraint;

class ExceptionMessage extends 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 \Throwable $other
*
* @return bool
*/
protected function matches($other)
{
if ($this->expectedMessage === '') {
return $other->getMessage() === '';
}

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)
{
if ($this->expectedMessage === '') {
return \sprintf(
"exception message is empty but is '%s'",
$other->getMessage()
);
}

return \sprintf(
"exception message '%s' contains '%s'",
$other->getMessage(),
$this->expectedMessage
);
}

/**
* @return string
*/
public function toString()
{
if ($this->expectedMessage === '') {
return 'exception message is empty';
}

return 'exception message contains ';
}
}