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Package aspect-override
Short Description Override functions through aspects
License MIT
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Informations about the package aspect-override
Aspect Override
This library is experimental until version 1.0.0 and may break on updates
Override methods (Through an aspect oriented approach) and functions within your PHP tests
Note: This library is only intended to be used in your testing environment and has no guarantees of stability in production environments
About
This library aims to be the 'swiss army knife' of being able to test any PHP project by allowing you to modify the execution of the program however you wish.
Features
- Overwrite any type of class method static or non-static
- Overwrite the functionality of any function whether it's namespaced or global
- Overwrite the arguments of a function before it's called
- Overwrite the return of a function after it's called
- Modify function arguments even if they are passed by reference
- Framework and autoloader agnostic, works with any PHP codebase (ex: Composer, regular require path/to/my/code.php)
Getting Started
Installing
Bootstrapping
To enable overwriting function and class method, AspectOverride needs to initialize some stream processors to perform the code transformations that enable the class method and function rewriting
Usage
Overwriting class methods
Overwriting class methods arguments before running
Overwriting specific class methods arguments before running
Overwriting a method's return value
Overwriting a function's return value
Questions you might have
Q: How does this work, I thought you can't redefine method and function in PHP?
A: When a file is loaded in PHP it passes through PHP's streams and since PHP supports wrappers around streams we can rewrite the code to include the overwrite functionality before PHP executes it
Q: This library is really weird and I hate it, why don't you test code normally?
A: I wish all the codebases I work on are testable 😈
Q: Why don't line numbers match or step over requires multiple clicks up when step debugging
A: Since we're rewriting the source code to rewrite methods and functions. statements get inserted to return early with another value, replace arguments and or call and return the result of 'rewritten' function. This seemed to be better than having to step debug overwritten code (If possible)
Versioning
SemVer for versioning. For the versions available, see the tags on this repository.
License
This project is licensed under the MIT License - see the LICENSE.md file for details
Acknowledgements
Functionality Heavily inspired by AspectMock and Heavily Inspired by php-vcr for monkey-patching through PHP streams
