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Filename : configuration.rst
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.. index::
    single: Mockery; Configuration

Mockery Global Configuration
============================

To allow for a degree of fine-tuning, Mockery utilises a singleton
configuration object to store a small subset of core behaviours. The three
currently present include:

* Option to allow/disallow the mocking of methods which do not actually exist
* Option to allow/disallow the existence of expectations which are never
  fulfilled (i.e. unused)
* Setter/Getter for added a parameter map for internal PHP class methods
  (``Reflection`` cannot detect these automatically)

By default, the first two behaviours are enabled. Of course, there are
situations where this can lead to unintended consequences. The mocking of
non-existent methods may allow mocks based on real classes/objects to fall out
of sync with the actual implementations, especially when some degree of
integration testing (testing of object wiring) is not being performed.
Allowing unfulfilled expectations means unnecessary mock expectations go
unnoticed, cluttering up test code, and potentially confusing test readers.

You may allow or disallow these behaviours (whether for whole test suites or
just select tests) by using one or both of the following two calls:

.. code-block:: php

    \Mockery::getConfiguration()->allowMockingNonExistentMethods(bool);
    \Mockery::getConfiguration()->allowMockingMethodsUnnecessarily(bool);

Passing a true allows the behaviour, false disallows it. Both take effect
immediately until switched back. In both cases, if either behaviour is
detected when not allowed, it will result in an Exception being thrown at that
point. Note that disallowing these behaviours should be carefully considered
since they necessarily remove at least some of Mockery's flexibility.

The other two methods are:

.. code-block:: php

    \Mockery::getConfiguration()->setInternalClassMethodParamMap($class, $method, array $paramMap)
    \Mockery::getConfiguration()->getInternalClassMethodParamMap($class, $method)

These are used to define parameters (i.e. the signature string of each) for the
methods of internal PHP classes (e.g. SPL, or PECL extension classes like
ext/mongo's MongoCollection. Reflection cannot analyse the parameters of internal
classes. Most of the time, you never need to do this. It's mainly needed where an
internal class method uses pass-by-reference for a parameter - you MUST in such
cases ensure the parameter signature includes the ``&`` symbol correctly as Mockery
won't correctly add it automatically for internal classes.