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equals

Fuzzy Mock objects for testing

    3.1.1

Maintainers
2

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A mock equality tool for testing

.. image:: https://badge.fury.io/py/equals.svg :target: https://badge.fury.io/py/equals

.. image:: https://readthedocs.org/projects/equals/badge/?version=latest :target: https://equals.readthedocs.io/en/latest/?badge=latest

.. image:: https://coveralls.io/repos/github/smartfastlabs/equals/badge.svg?branch=master :target: https://coveralls.io/github/smartfastlabs/equals?branch=master

tl;dr Equals is a stricter version of Mock.Any <http://www.voidspace.org.uk/python/mock/helpers.html#any>__.

Equals allows you to assert certain equality constraints between python objects during testing. There are times where we don't want to assert absolute equality, e.g. we need to ensure two lists have the same elements, but don't care about order. This was designed specifically for usage with Mock <https://pypi.python.org/pypi/mock>_ and dobles <https://github.com/smartfastlabs/dobles>_.

API

Full Documentation is available at http://equals.readthedocs.org/en/latest/.

strings:

::

from equals import any_string

any_string.containing('abc') == '123 abc 456'
any_string.starting_with('abc') == 'abcdef'
any_string.ending_with('abc') == '123abc'
any_string.matching('^abc$') == 'abc'

numbers:

::

from equals import any_number

any_number.less_than(5) == 4
any_number.less_than_or_equal_to(5) == 5
any_number.greater_than(4) == 5
any_number.greater_than_or_equal_to(5) == 5
any_number.between(1, 3) == 2

dictionaries:

::

from equals import any_dict

any_dict.containing(1, 2) == {1: 2, 2:3, 4:5}
any_dict.containing(foo='bar') == {
    'foo': 'bar',
    'bob': 'barker'
}
any_dict.not_containing(1, foo=5) == {'foo':3, 4:5}

iterators:

::

from equals import any_iterable

any_iterable.containing(1, 2, 3) == [1, 2, 3, 4, 5]
any_iterable.containing_only(1, 2, 3) == [2, 3, 1]
any_iterable.not_containing(1, 2) == [3, 4]
any_iterable.with_length(2) == [3, 4]

objects:

::

from equals import anything

anything == None
anything == True
anything == {1: 1}
anything_true == 'dd'
anything_false == ''

instance_of(dict) == {}
anything.with_attrs(foo='bar', bob='barker') == Dummy('bar', 'barker')
instance_of(Dummy).with_attrs(foo='bar', bob='barker') == Dummy('bar', 'barker')

With Mock:

::

from mock import Mock
from equals import any_dict

test_object = Mock()
test_object.method({'bob': 'barker'})
test_object.method.assert_called_with(any_dict)

dobles:

::

from dobles import expect
from equals import any_string


class TestClass(object):
    def method(self, arg):
        return arg


test_object = TestClass()
expect(test_object).method.with_args(any_string.containing('bob'))

test_object.method('bob barker')

Installation:

::

>> pip install equals

Development

Source code is available at https://github.com/smartfastlabs/equals.

To install the dependencies on a fresh clone of the repository, run make bootstrap.

To run the test suite, run make test.

To build the documentation locally, run make docs.

License

MIT: http://opensource.org/licenses/MIT

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