example-test-php-core-methods

This package contains an example to test php core methods.

why

• most of the time there is no need to change php-core-method-response
• sometimes it is enough to work with a facade-class which returns the method-results and the class could be mocked
• if there are many system checks in your code and you would like to test each scenario its getting tricky
• many solutions using I found use override_function or other magic methods where you manipulate the method at all
  • this dont work, if you need to return different responses on different calls
  • there is nothing wrong with the other ways I found, but they dont fit to my usecase
• advantages:
  • you can test every path in your code
  • you can produce every situation without creating complex environments
  • you have the full handle above every built-in method
  • no need to change production code

how

• you can override built-in functions in your current namespace
• since PHP5.3 with namespaces

how this way is getting impossible

• if you are using a leading backslash PHP is going to take the global built-in function.

example:

\date('Y-m-d')

Execute PHPUnit tests

./vendor/bin/phpunit.phar -c ./phpunit.xml --testdox

further reading

• https://www.php.net/manual/en/language.namespaces.fallback.php
• https://www.schmengler-se.de/en/2011/03/php-mocking-built-in-functions-like-time-in-unit-tests/
• https://www.php.net/manual/en/function.override-function.php or https://www.php.net/runkit_function_redefine

other ways

• https://github.com/php-mock/php-mock
  • https://github.com/php-mock/php-mock-phpunit
  • https://github.com/php-mock/php-mock-mockery
  • https://github.com/php-mock/php-mock-prophecy