numpy.testing.assert_warns¶
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numpy.testing.
assert_warns
(warning_class, func, *args, **kw)[source]¶ Fail unless the given callable throws the specified warning.
A warning of class warning_class should be thrown by the callable when invoked with arguments args and keyword arguments kwargs. If a different type of warning is thrown, it will not be caught, and the test case will be deemed to have suffered an error.
Parameters: warning_class : class
The class defining the warning that func is expected to throw.
func : callable
The callable to test.
*args : Arguments
Arguments passed to func.
**kwargs : Kwargs
Keyword arguments passed to func.
Returns: The value returned by `func`. :