Jabba Laci wrote:
Hi,
In a unit test, I want to verify that a function returns a
cookielib.LWPCookieJar object. What is the correct way of doing that?
1) First I tried to figure out its type with type(return_value) but it
is <type 'instance'>
2) return_value.__class__ .__name__ gives 'LWPCookieJar', which is bettter
3) isinstance(return_value, cookielib.LWPCookieJar) seems to be the
best way, however somewhere I read that using isinstance is
discouraged
Thanks,
Laszlo
isinstance is fine, if you could find the source where it is
discouraged... Could be a consequence of some specific context.
However, checking types in OOP is in general a failure. Unitary tests
are possibly an exception.
JM
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