Commit ed9b669f by Jon Maron

ATLAS-19 remove unnecessary docs dir

parent aefca9a3
# -*- coding: utf-8 -*-
#
# Mock documentation build configuration file, created by
# sphinx-quickstart on Mon Nov 17 18:12:00 2008.
#
# This file is execfile()d with the current directory set to its containing dir.
#
# The contents of this file are pickled, so don't put values in the namespace
# that aren't pickleable (module imports are okay, they're removed automatically).
#
# All configuration values have a default value; values that are commented out
# serve to show the default value.
import sys, os
sys.path.insert(0, os.path.abspath('..'))
from mock import __version__
# If your extensions are in another directory, add it here. If the directory
# is relative to the documentation root, use os.path.abspath to make it
# absolute, like shown here.
#sys.path.append(os.path.abspath('some/directory'))
# General configuration
# ---------------------
# Add any Sphinx extension module names here, as strings. They can be extensions
# coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
extensions = ['sphinx.ext.doctest']
doctest_global_setup = """
import os
import sys
import mock
from mock import * # yeah, I know :-/
import unittest2
import __main__
if os.getcwd() not in sys.path:
sys.path.append(os.getcwd())
# keep a reference to __main__
sys.modules['__main'] = __main__
class ProxyModule(object):
def __init__(self):
self.__dict__ = globals()
sys.modules['__main__'] = ProxyModule()
"""
doctest_global_cleanup = """
sys.modules['__main__'] = sys.modules['__main']
"""
html_theme = 'nature'
html_theme_options = {}
# Add any paths that contain templates here, relative to this directory.
#templates_path = ['_templates']
# The suffix of source filenames.
source_suffix = '.txt'
# The master toctree document.
master_doc = 'index'
# General substitutions.
project = u'Mock'
copyright = u'2007-2012, Michael Foord & the mock team'
# The default replacements for |version| and |release|, also used in various
# other places throughout the built documents.
#
# The short X.Y version.
version = __version__[:3]
# The full version, including alpha/beta/rc tags.
release = __version__
# There are two options for replacing |today|: either, you set today to some
# non-false value, then it is used:
#today = ''
# Else, today_fmt is used as the format for a strftime call.
today_fmt = '%B %d, %Y'
# List of documents that shouldn't be included in the build.
#unused_docs = []
# List of directories, relative to source directories, that shouldn't be searched
# for source files.
exclude_trees = []
# The reST default role (used for this markup: `text`) to use for all documents.
#default_role = None
# If true, '()' will be appended to :func: etc. cross-reference text.
#add_function_parentheses = True
# If true, the current module name will be prepended to all description
# unit titles (such as .. function::).
add_module_names = False
# If true, sectionauthor and moduleauthor directives will be shown in the
# output. They are ignored by default.
#show_authors = False
# The name of the Pygments (syntax highlighting) style to use.
pygments_style = 'friendly'
# Options for HTML output
# -----------------------
# The style sheet to use for HTML and HTML Help pages. A file of that name
# must exist either in Sphinx' static/ path, or in one of the custom paths
# given in html_static_path.
#html_style = 'adctheme.css'
# The name for this set of Sphinx documents. If None, it defaults to
# "<project> v<release> documentation".
#html_title = None
# A shorter title for the navigation bar. Default is the same as html_title.
#html_short_title = None
# The name of an image file (relative to this directory) to place at the top
# of the sidebar.
#html_logo = None
# The name of an image file (within the static path) to use as favicon of the
# docs. This file should be a Windows icon file (.ico) being 16x16 or 32x32
# pixels large.
#html_favicon = None
# Add any paths that contain custom static files (such as style sheets) here,
# relative to this directory. They are copied after the builtin static files,
# so a file named "default.css" will overwrite the builtin "default.css".
#html_static_path = ['_static']
# If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
# using the given strftime format.
html_last_updated_fmt = '%b %d, %Y'
# If true, SmartyPants will be used to convert quotes and dashes to
# typographically correct entities.
#html_use_smartypants = True
# Custom sidebar templates, maps document names to template names.
#html_sidebars = {}
# Additional templates that should be rendered to pages, maps page names to
# template names.
#html_additional_pages = {}
# If false, no module index is generated.
html_use_modindex = False
# If false, no index is generated.
#html_use_index = True
# If true, the index is split into individual pages for each letter.
#html_split_index = False
# If true, the reST sources are included in the HTML build as _sources/<name>.
#html_copy_source = True
# If true, an OpenSearch description file will be output, and all pages will
# contain a <link> tag referring to it. The value of this option must be the
# base URL from which the finished HTML is served.
#html_use_opensearch = ''
# If nonempty, this is the file name suffix for HTML files (e.g. ".xhtml").
#html_file_suffix = ''
# Output file base name for HTML help builder.
htmlhelp_basename = 'Mockdoc'
# Options for LaTeX output
# ------------------------
# The paper size ('letter' or 'a4').
#latex_paper_size = 'letter'
# The font size ('10pt', '11pt' or '12pt').
latex_font_size = '12pt'
# Grouping the document tree into LaTeX files. List of tuples
# (source start file, target name, title, author, document class [howto/manual]).
latex_documents = [
('index', 'Mock.tex', u'Mock Documentation',
u'Michael Foord', 'manual'),
]
# The name of an image file (relative to this directory) to place at the top of
# the title page.
#latex_logo = None
# For "manual" documents, if this is true, then toplevel headings are parts,
# not chapters.
#latex_use_parts = False
# Additional stuff for the LaTeX preamble.
#latex_preamble = ''
# Documents to append as an appendix to all manuals.
#latex_appendices = []
# If false, no module index is generated.
latex_use_modindex = False
\ No newline at end of file
.. currentmodule:: mock
.. _magic-methods:
Mocking Magic Methods
=====================
.. currentmodule:: mock
:class:`Mock` supports mocking `magic methods
<http://www.ironpythoninaction.com/magic-methods.html>`_. This allows mock
objects to replace containers or other objects that implement Python
protocols.
Because magic methods are looked up differently from normal methods [#]_, this
support has been specially implemented. This means that only specific magic
methods are supported. The supported list includes *almost* all of them. If
there are any missing that you need please let us know!
You mock magic methods by setting the method you are interested in to a function
or a mock instance. If you are using a function then it *must* take ``self`` as
the first argument [#]_.
.. doctest::
>>> def __str__(self):
... return 'fooble'
...
>>> mock = Mock()
>>> mock.__str__ = __str__
>>> str(mock)
'fooble'
>>> mock = Mock()
>>> mock.__str__ = Mock()
>>> mock.__str__.return_value = 'fooble'
>>> str(mock)
'fooble'
>>> mock = Mock()
>>> mock.__iter__ = Mock(return_value=iter([]))
>>> list(mock)
[]
One use case for this is for mocking objects used as context managers in a
`with` statement:
.. doctest::
>>> mock = Mock()
>>> mock.__enter__ = Mock(return_value='foo')
>>> mock.__exit__ = Mock(return_value=False)
>>> with mock as m:
... assert m == 'foo'
...
>>> mock.__enter__.assert_called_with()
>>> mock.__exit__.assert_called_with(None, None, None)
Calls to magic methods do not appear in :attr:`~Mock.method_calls`, but they
are recorded in :attr:`~Mock.mock_calls`.
.. note::
If you use the `spec` keyword argument to create a mock then attempting to
set a magic method that isn't in the spec will raise an `AttributeError`.
The full list of supported magic methods is:
* ``__hash__``, ``__sizeof__``, ``__repr__`` and ``__str__``
* ``__dir__``, ``__format__`` and ``__subclasses__``
* ``__floor__``, ``__trunc__`` and ``__ceil__``
* Comparisons: ``__cmp__``, ``__lt__``, ``__gt__``, ``__le__``, ``__ge__``,
``__eq__`` and ``__ne__``
* Container methods: ``__getitem__``, ``__setitem__``, ``__delitem__``,
``__contains__``, ``__len__``, ``__iter__``, ``__getslice__``,
``__setslice__``, ``__reversed__`` and ``__missing__``
* Context manager: ``__enter__`` and ``__exit__``
* Unary numeric methods: ``__neg__``, ``__pos__`` and ``__invert__``
* The numeric methods (including right hand and in-place variants):
``__add__``, ``__sub__``, ``__mul__``, ``__div__``,
``__floordiv__``, ``__mod__``, ``__divmod__``, ``__lshift__``,
``__rshift__``, ``__and__``, ``__xor__``, ``__or__``, and ``__pow__``
* Numeric conversion methods: ``__complex__``, ``__int__``, ``__float__``,
``__index__`` and ``__coerce__``
* Descriptor methods: ``__get__``, ``__set__`` and ``__delete__``
* Pickling: ``__reduce__``, ``__reduce_ex__``, ``__getinitargs__``,
``__getnewargs__``, ``__getstate__`` and ``__setstate__``
The following methods are supported in Python 2 but don't exist in Python 3:
* ``__unicode__``, ``__long__``, ``__oct__``, ``__hex__`` and ``__nonzero__``
* ``__truediv__`` and ``__rtruediv__``
The following methods are supported in Python 3 but don't exist in Python 2:
* ``__bool__`` and ``__next__``
The following methods exist but are *not* supported as they are either in use by
mock, can't be set dynamically, or can cause problems:
* ``__getattr__``, ``__setattr__``, ``__init__`` and ``__new__``
* ``__prepare__``, ``__instancecheck__``, ``__subclasscheck__``, ``__del__``
Magic Mock
==========
There are two `MagicMock` variants: `MagicMock` and `NonCallableMagicMock`.
.. class:: MagicMock(*args, **kw)
``MagicMock`` is a subclass of :class:`Mock` with default implementations
of most of the magic methods. You can use ``MagicMock`` without having to
configure the magic methods yourself.
The constructor parameters have the same meaning as for :class:`Mock`.
If you use the `spec` or `spec_set` arguments then *only* magic methods
that exist in the spec will be created.
.. class:: NonCallableMagicMock(*args, **kw)
A non-callable version of `MagicMock`.
The constructor parameters have the same meaning as for
:class:`MagicMock`, with the exception of `return_value` and
`side_effect` which have no meaning on a non-callable mock.
The magic methods are setup with `MagicMock` objects, so you can configure them
and use them in the usual way:
.. doctest::
>>> mock = MagicMock()
>>> mock[3] = 'fish'
>>> mock.__setitem__.assert_called_with(3, 'fish')
>>> mock.__getitem__.return_value = 'result'
>>> mock[2]
'result'
By default many of the protocol methods are required to return objects of a
specific type. These methods are preconfigured with a default return value, so
that they can be used without you having to do anything if you aren't interested
in the return value. You can still *set* the return value manually if you want
to change the default.
Methods and their defaults:
* ``__lt__``: NotImplemented
* ``__gt__``: NotImplemented
* ``__le__``: NotImplemented
* ``__ge__``: NotImplemented
* ``__int__`` : 1
* ``__contains__`` : False
* ``__len__`` : 1
* ``__iter__`` : iter([])
* ``__exit__`` : False
* ``__complex__`` : 1j
* ``__float__`` : 1.0
* ``__bool__`` : True
* ``__nonzero__`` : True
* ``__oct__`` : '1'
* ``__hex__`` : '0x1'
* ``__long__`` : long(1)
* ``__index__`` : 1
* ``__hash__`` : default hash for the mock
* ``__str__`` : default str for the mock
* ``__unicode__`` : default unicode for the mock
* ``__sizeof__``: default sizeof for the mock
For example:
.. doctest::
>>> mock = MagicMock()
>>> int(mock)
1
>>> len(mock)
0
>>> hex(mock)
'0x1'
>>> list(mock)
[]
>>> object() in mock
False
The two equality method, `__eq__` and `__ne__`, are special (changed in
0.7.2). They do the default equality comparison on identity, using a side
effect, unless you change their return value to return something else:
.. doctest::
>>> MagicMock() == 3
False
>>> MagicMock() != 3
True
>>> mock = MagicMock()
>>> mock.__eq__.return_value = True
>>> mock == 3
True
In `0.8` the `__iter__` also gained special handling implemented with a
side effect. The return value of `MagicMock.__iter__` can be any iterable
object and isn't required to be an iterator:
.. doctest::
>>> mock = MagicMock()
>>> mock.__iter__.return_value = ['a', 'b', 'c']
>>> list(mock)
['a', 'b', 'c']
>>> list(mock)
['a', 'b', 'c']
If the return value *is* an iterator, then iterating over it once will consume
it and subsequent iterations will result in an empty list:
.. doctest::
>>> mock.__iter__.return_value = iter(['a', 'b', 'c'])
>>> list(mock)
['a', 'b', 'c']
>>> list(mock)
[]
``MagicMock`` has all of the supported magic methods configured except for some
of the obscure and obsolete ones. You can still set these up if you want.
Magic methods that are supported but not setup by default in ``MagicMock`` are:
* ``__cmp__``
* ``__getslice__`` and ``__setslice__``
* ``__coerce__``
* ``__subclasses__``
* ``__dir__``
* ``__format__``
* ``__get__``, ``__set__`` and ``__delete__``
* ``__reversed__`` and ``__missing__``
* ``__reduce__``, ``__reduce_ex__``, ``__getinitargs__``, ``__getnewargs__``,
``__getstate__`` and ``__setstate__``
* ``__getformat__`` and ``__setformat__``
------------
.. [#] Magic methods *should* be looked up on the class rather than the
instance. Different versions of Python are inconsistent about applying this
rule. The supported protocol methods should work with all supported versions
of Python.
.. [#] The function is basically hooked up to the class, but each ``Mock``
instance is kept isolated from the others.
==========
Sentinel
==========
.. currentmodule:: mock
.. testsetup::
class ProductionClass(object):
def something(self):
return self.method()
class Test(unittest2.TestCase):
def testSomething(self):
pass
self = Test('testSomething')
.. data:: sentinel
The ``sentinel`` object provides a convenient way of providing unique
objects for your tests.
Attributes are created on demand when you access them by name. Accessing
the same attribute will always return the same object. The objects
returned have a sensible repr so that test failure messages are readable.
.. data:: DEFAULT
The `DEFAULT` object is a pre-created sentinel (actually
`sentinel.DEFAULT`). It can be used by :attr:`~Mock.side_effect`
functions to indicate that the normal return value should be used.
Sentinel Example
================
Sometimes when testing you need to test that a specific object is passed as an
argument to another method, or returned. It can be common to create named
sentinel objects to test this. `sentinel` provides a convenient way of
creating and testing the identity of objects like this.
In this example we monkey patch `method` to return
`sentinel.some_object`:
.. doctest::
>>> real = ProductionClass()
>>> real.method = Mock(name="method")
>>> real.method.return_value = sentinel.some_object
>>> result = real.method()
>>> assert result is sentinel.some_object
>>> sentinel.some_object
sentinel.some_object
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