895 B
Executable File
Final classes
The final keyword was removed in version 1.4.0. It was replaced by @final annotation.
This was done due popular demand, not because it is a good technical reason to
extend the classes.
This document will show the correct way to work with PSR-7 classes. The "correct way" refers to best practices and good software design. I strongly believe that one should be aware of how a problem should be solved, however, it is not needed to always implement that solution.
Extending classes
You should never extend the classes, you should rather use composition or implement the interface yourself. Please refer to the decorator pattern.
Mocking classes
The PSR-7 classes are all value objects and they can be used without mocking. If one really needs to create a special scenario, one can mock the interface instead.