ParseError when trying to mock `exit`, `die`

[simonLeary42]

test/BuiltinMockTest.php:

<?php
namespace Foobar;
class BuiltinMockTest extends \PHPUnit\Framework\TestCase {
    use \phpmock\phpunit\PHPMock;
    public function testMockDie() {
        $mock = $this->getFunctionMock(__NAMESPACE__, "die");
    }
}

$ ./vendor/bin/phpunit --no-configuration ./test/BuiltinMockTest.php  | sed -E "s|$PWD|...|"
PHPUnit 12.0.10 by Sebastian Bergmann and contributors.

Runtime:       PHP 8.3.6

E                                                                   1 / 1 (100%)

Time: 00:00.023, Memory: 8.00 MB

There was 1 error:

1) Foobar\BuiltinMockTest::testMockDie
ParseError: syntax error, unexpected token "exit", expecting "("

.../vendor/php-mock/php-mock/classes/Mock.php:188
.../vendor/php-mock/php-mock/classes/Mock.php:96
.../vendor/php-mock/php-mock-phpunit/classes/PHPMock.php:85
.../test/BuiltinMockTest.php:6

ERRORS!
Tests: 1, Assertions: 0, Errors: 1.

php version:

PHP 8.3.6 (cli) (built: Mar 19 2025 10:08:38) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.6, Copyright (c) Zend Technologies
    with Zend OPcache v8.3.6, Copyright (c), by Zend Technologies

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myclabs/deep-copy                1.13.0   Create deep copies (clones) of your objects
nikic/php-parser                 5.4.0    A PHP parser written in PHP
paragonie/constant_time_encoding 3.0.0    Constant-time Implementations of RFC 4648 Encoding (Base-64, Base-32, Base-16)
paragonie/random_compat          9.99.100 PHP 5.x polyfill for random_bytes() and random_int() from PHP 7
phar-io/manifest                 2.0.4    Component for reading phar.io manifest information from a PHP Archive (PHAR)
phar-io/version                  3.2.1    Library for handling version information and constraints
php-mock/php-mock                2.6.1    PHP-Mock can mock built-in PHP functions (e.g. time()). PHP-Mock relies on PHP's namespace fa...
php-mock/php-mock-integration    3.0.0    Integration package for PHP-Mock
php-mock/php-mock-phpunit        2.13.0   Mock built-in PHP functions (e.g. time()) with PHPUnit. This package relies on PHP's namespac...
phpmailer/phpmailer              6.6.4    PHPMailer is a full-featured email creation and transfer class for PHP
phpseclib/phpseclib              3.0.43   PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc.
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phpunit/php-file-iterator        6.0.0    FilterIterator implementation that filters files based on a list of suffixes.
phpunit/php-invoker              6.0.0    Invoke callables with a timeout
phpunit/php-text-template        5.0.0    Simple template engine.
phpunit/php-timer                8.0.0    Utility class for timing
phpunit/phpunit                  12.0.10  The PHP Unit Testing framework.
psr/log                          1.1.4    Common interface for logging libraries
sebastian/cli-parser             4.0.0    Library for parsing CLI options
sebastian/comparator             7.0.1    Provides the functionality to compare PHP values for equality
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sebastian/object-enumerator      7.0.0    Traverses array structures and object graphs to enumerate all referenced objects
sebastian/object-reflector       5.0.0    Allows reflection of object attributes, including inherited and non-public ones
sebastian/recursion-context      7.0.0    Provides functionality to recursively process PHP variables
sebastian/type                   6.0.2    Collection of value objects that represent the types of the PHP type system
sebastian/version                6.0.0    Library that helps with managing the version number of Git-hosted PHP projects
staabm/side-effects-detector     1.0.5    A static analysis tool to detect side effects in PHP code
theseer/tokenizer                1.2.3    A small library for converting tokenized PHP source code into XML and potentially other formats

[simonLeary42]

mocking time this way works fine.

[michalbundyra]

@simonLeary42 thanks for your time, it's expected behaviour - please see:

• Can't mock "exit" #11 (comment)
• Cannot mock die php-mock#31 (comment)

Hope it makes sense, thanks.

[simonLeary42]

That makes sense. Is it possible to detect this and make a more useful error message?