merge with 3.3

This commit is contained in:
Georg Brandl 2013-02-03 14:00:38 +01:00
commit cd50108341
1 changed files with 14 additions and 14 deletions

View File

@ -432,14 +432,14 @@ decorator indvidually to every method whose name starts with "test".
.. _further-examples:
Further Examples
================
----------------
Here are some more examples for some slightly more advanced scenarios.
Mocking chained calls
---------------------
~~~~~~~~~~~~~~~~~~~~~
Mocking chained calls is actually straightforward with mock once you
understand the :attr:`~Mock.return_value` attribute. When a mock is called for
@ -510,7 +510,7 @@ this list of calls for us:
Partial mocking
---------------
~~~~~~~~~~~~~~~
In some tests I wanted to mock out a call to `datetime.date.today()
<http://docs.python.org/library/datetime.html#datetime.date.today>`_ to return
@ -554,7 +554,7 @@ is discussed in `this blog entry
Mocking a Generator Method
--------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~
A Python generator is a function or method that uses the `yield statement
<http://docs.python.org/reference/simple_stmts.html#the-yield-statement>`_ to
@ -596,7 +596,7 @@ To configure the values returned from the iteration (implicit in the call to
Applying the same patch to every test method
--------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you want several patches in place for multiple test methods the obvious way
is to apply the patch decorators to every method. This can feel like unnecessary
@ -656,7 +656,7 @@ exception is raised in the setUp then tearDown is not called.
Mocking Unbound Methods
-----------------------
~~~~~~~~~~~~~~~~~~~~~~~
Whilst writing tests today I needed to patch an *unbound method* (patching the
method on the class rather than on the instance). I needed self to be passed
@ -695,7 +695,7 @@ with a Mock instance instead, and isn't called with `self`.
Checking multiple calls with mock
---------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mock has a nice API for making assertions about how your mock objects are used.
@ -737,7 +737,7 @@ looks remarkably similar to the repr of the `call_args_list`:
Coping with mutable arguments
-----------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Another situation is rare, but can bite you, is when your mock is called with
mutable arguments. `call_args` and `call_args_list` store *references* to the
@ -853,7 +853,7 @@ children of a `CopyingMock` will also have the type `CopyingMock`.
Nesting Patches
---------------
~~~~~~~~~~~~~~~
Using patch as a context manager is nice, but if you do multiple patches you
can end up with nested with statements indenting further and further to the
@ -901,7 +901,7 @@ for us:
Mocking a dictionary with MagicMock
-----------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
You may want to mock a dictionary, or other container object, recording all
access to it whilst having it still behave like a dictionary.
@ -976,7 +976,7 @@ mock methods and attributes:
Mock subclasses and their attributes
------------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
There are various reasons why you might want to subclass `Mock`. One reason
might be to add helper methods. Here's a silly example:
@ -1039,7 +1039,7 @@ onto the mock constructor:
Mocking imports with patch.dict
-------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
One situation where mocking can be hard is where you have a local import inside
a function. These are harder to mock because they aren't using an object from
@ -1102,7 +1102,7 @@ With slightly more work you can also mock package imports:
Tracking order of calls and less verbose call assertions
--------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The :class:`Mock` class allows you to track the *order* of method calls on
your mock objects through the :attr:`~Mock.method_calls` attribute. This
@ -1182,7 +1182,7 @@ order. In this case you can pass `any_order=True` to `assert_has_calls`:
More complex argument matching
------------------------------
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Using the same basic concept as :data:`ANY` we can implement matchers to do more
complex assertions on objects used as arguments to mocks.