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I just wrote another mock object framework.

Here it is:


class BazMock(object):
    def __init__(self, **kwargs):
        self.__dict__.update(kwargs)

Now I need to figure out how to make some mock tests to go with it.

Posted in Programming, Python, Testing.

By matt

September 26, 2008

Viewing 5 Comments

Christian Wyglendowski 1 year ago 2 points
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This is about the only mock object framework that I would use. The only thing it needs is a better name. OckMock - "The simplest answer is usually the correct answer."

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http://www.dowski.com

Matt Wilson 1 year ago 1 point
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Consider that name stolen :)

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17 /people/mw44118/ /people/mw44118/following/ http://blog.tplus1.com

Ben Finney 1 year ago 2 points
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Doesn't seem too useful; when the code under test attempts to call expected methods on an instance it'll fail with 'AttributeError'. A mock object should pretend it's the object being mocked, surely?

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Matt Wilson 1 year ago 1 point
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Hi Ben,

I probably should have included a few example uses. Pretend I want to mock an object that has an attribute named ivr_sends which is a list of strings. I'd do this:

mm = BazMock(ivr_sends=['abc', 'def'])

Now my test code can access mm.ivr_sends just fine.

And now pretend you need to mock attributes on attributes:

mm = BazMock(x=BazMock(y=[BazMock(a=1, b=2), BazMock(a=3, b=4)]))

And now I can access mm.x.y[0].a.

For methods, you'd need to graft on definitions like this:

def fake_foo(x):
return "99"

mm.foo = fake_foo

I've been told that there are better mock objects out there, that do stuff like inspect a module or a class and create mocks automatically.

I'm dragging my feet about learning them. Let me know if you find one you like.

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17 /people/mw44118/ /people/mw44118/following/ http://blog.tplus1.com

Michael Barton 1 year ago 2 points
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Hey, you stole that code from my ORM.

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http://www.weirdlooking.com/

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