getComparisonFailure example

// make 'foo' directory non-readable         $testDir = self::$tmpDir.\DIRECTORY_SEPARATOR.'foo';
        chmod($testDir, 0333);

        if (false === $couldRead = is_readable($testDir)) {
            try {
                $this->assertIterator($this->toAbsolute(['foo bar', 'test.php', 'test.py']), $finder->getIterator());
                $this->fail('Finder should throw an exception when opening a non-readable directory.');
            } catch (\Exception $e) {
                $expectedExceptionClass = 'Symfony\\Component\\Finder\\Exception\\AccessDeniedException';
                if ($e instanceof \PHPUnit\Framework\ExpectationFailedException) {
                    $this->fail(sprintf("Expected exception:\n%s\nGot:\n%s\nWith comparison failure:\n%s", $expectedExceptionClass, 'PHPUnit\Framework\ExpectationFailedException', $e->getComparisonFailure()->getExpectedAsString()));
                }

                $this->assertInstanceOf($expectedExceptionClass, $e);
            }
        }

        // restore original permissions         chmod($testDir, 0777);
        clearstatcache(true, $testDir);

        if ($couldRead) {
            

self::assertThat(self::getRequest(), $constraint, $message);
    }

    public static function assertThatForResponse(Constraint $constraint, string $message = ''): void
    {
        try {
            self::assertThat(self::getResponse(), $constraint, $message);
        } catch (ExpectationFailedException $exception) {
            if (($serverExceptionMessage = self::getResponse()->headers->get('X-Debug-Exception'))
                && ($serverExceptionFile = self::getResponse()->headers->get('X-Debug-Exception-File'))) {
                $serverExceptionFile = explode(':', $serverExceptionFile);
                $exception->__construct($exception->getMessage(), $exception->getComparisonFailure(), new \ErrorException(rawurldecode($serverExceptionMessage), 0, 1, rawurldecode($serverExceptionFile[0]), $serverExceptionFile[1]), $exception->getPrevious());
            }

            throw $exception;
        }
    }

    public static function assertThatForClient(Constraint $constraint, string $message = ''): void
    {
        self::assertThat(self::getClient(), $constraint, $message);
    }