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    <h3>Editing: ComparisonFailure.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php declare(strict_types=1);
/*
 * This file is part of sebastian/comparator.
 *
 * (c) Sebastian Bergmann &lt;sebastian@phpunit.de&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\Comparator;

use RuntimeException;
use SebastianBergmann\Diff\Differ;
use SebastianBergmann\Diff\Output\UnifiedDiffOutputBuilder;

/**
 * Thrown when an assertion for string equality failed.
 */
class ComparisonFailure extends RuntimeException
{
    /**
     * Expected value of the retrieval which does not match $actual.
     *
     * @var mixed
     */
    protected $expected;

    /**
     * Actually retrieved value which does not match $expected.
     *
     * @var mixed
     */
    protected $actual;

    /**
     * The string representation of the expected value.
     *
     * @var string
     */
    protected $expectedAsString;

    /**
     * The string representation of the actual value.
     *
     * @var string
     */
    protected $actualAsString;

    /**
     * @var bool
     */
    protected $identical;

    /**
     * Optional message which is placed in front of the first line
     * returned by toString().
     *
     * @var string
     */
    protected $message;

    /**
     * Initialises with the expected value and the actual value.
     *
     * @param mixed  $expected         expected value retrieved
     * @param mixed  $actual           actual value retrieved
     * @param string $expectedAsString
     * @param string $actualAsString
     * @param bool   $identical
     * @param string $message          a string which is prefixed on all returned lines
     *                                 in the difference output
     */
    public function __construct($expected, $actual, $expectedAsString, $actualAsString, $identical = false, $message = '')
    {
        $this-&gt;expected         = $expected;
        $this-&gt;actual           = $actual;
        $this-&gt;expectedAsString = $expectedAsString;
        $this-&gt;actualAsString   = $actualAsString;
        $this-&gt;message          = $message;
    }

    public function getActual()
    {
        return $this-&gt;actual;
    }

    public function getExpected()
    {
        return $this-&gt;expected;
    }

    /**
     * @return string
     */
    public function getActualAsString()
    {
        return $this-&gt;actualAsString;
    }

    /**
     * @return string
     */
    public function getExpectedAsString()
    {
        return $this-&gt;expectedAsString;
    }

    /**
     * @return string
     */
    public function getDiff()
    {
        if (!$this-&gt;actualAsString &amp;&amp; !$this-&gt;expectedAsString) {
            return '';
        }

        $differ = new Differ(new UnifiedDiffOutputBuilder(&quot;\n--- Expected\n+++ Actual\n&quot;));

        return $differ-&gt;diff($this-&gt;expectedAsString, $this-&gt;actualAsString);
    }

    /**
     * @return string
     */
    public function toString()
    {
        return $this-&gt;message . $this-&gt;getDiff();
    }
}
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