Powerful test doubles framework for Python

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import unittest
from doublex import Spy, assert_that, called

class SpyUseExample(unittest.TestCase):
    def test_spy_example(self):
        # given
        spy = Spy(SomeCollaboratorClass)
        cut = YourClassUnderTest(spy)

        # when
        cut.a_method_that_call_the_collaborator()

        # then
        assert_that(spy.some_method, called())

See more about doublex doubles.

• doubles have not public API framework methods. It could cause silent misspelling.
• doubles do not require collaborator instances, just classes, and it never instantiate them.
• assert_that() is used for ALL assertions.
• mock invocation order is relevant by default.
• supports old and new style classes.
• supports Python versions: 2.6, 2.7, 3.3, 3.4, 3.5. 3.6, 3.7

• amateur repository: deb https://uclm-arco.github.io/debian sid main (always updated)
• official package (may be outdated)
• official ubuntu package
• debian dir: svn://svn.debian.org/svn/python-modules/packages/doublex/trunk

• slides
• pyDoubles
• doublex-expects
• crate
• other doubles
• ludibrio
• doubles