Allow to mock internal php classes

[tomaszdurka]

Problems:

• Cannot extract reflection method paramaters from some method.
• Throwing exception when mocking internal php classes which use reserved keywords for method names (e.g. GearmanClient::clone())

[alexispeter]

First problem refers to default values for optional parameters in internal php classes.
See Notes at http://php.net/manual/en/reflectionparameter.getdefaultvalue.php

Note:
Due to implementation details, it is not possible to get the default value of built-in functions or methods of built-in classes. Trying to do this will result a ReflectionException being thrown.

[tomaszdurka]

I forgot to update issue as I did some research last friday.

The problem with optional paramter default value is solvable by checking 'isDefaultValueAvailable`. I am not sure how it works exactly as it seems you sometimes cannot access it, but it doesn't matter it doesn't exist. I don't believe there is workaroud for that.

Another problem is that those php extensions sometimes use reserved keywords for method names (like clone for gearman). It's actually bad code of those extensions to use those reserved keyowrds. Only solution would be to not mock those methods - ignore them. Problem is that there is no built-in function to get all actual (for current version) php reserved keywords. I would need to hardcode them.

@alexispeter any ideas?

[alexispeter]

I messed around with runkit for a while, but unfortunately it doesn't allow manipulation of internal classes.
I would simply hardcode reserved keywords and ignore methods with keywords as names, seems phpunit does something similar with their mock framework (You can't perform assertions on "reserved keyword functions".)

[tomaszdurka]

fyi @alexispeter