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More code reuse between GUI-independant frontend and Wx frontend: getting...
More code reuse between GUI-independant frontend and Wx frontend: getting the current edited buffer and setting it throught properties.

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parametric.py
55 lines | 1.8 KiB | text/x-python | PythonLexer
"""Parametric testing on top of twisted.trial.unittest.
"""
__all__ = ['parametric','Parametric']
from twisted.trial.unittest import TestCase
def partial(f, *partial_args, **partial_kwargs):
"""Generate a partial class method.
"""
def partial_func(self, *args, **kwargs):
dikt = dict(kwargs)
dikt.update(partial_kwargs)
return f(self, *(partial_args+args), **dikt)
return partial_func
def parametric(f):
"""Mark f as a parametric test.
"""
f._parametric = True
return classmethod(f)
def Parametric(cls):
"""Register parametric tests with a class.
"""
# Walk over all tests marked with @parametric
test_generators = [getattr(cls,f) for f in dir(cls)
if f.startswith('test')]
test_generators = [m for m in test_generators if hasattr(m,'_parametric')]
for test_gen in test_generators:
test_name = test_gen.func_name
# Insert a new test for each parameter
for n,test_and_params in enumerate(test_gen()):
test_method = test_and_params[0]
test_params = test_and_params[1:]
# Here we use partial (defined above), which returns a
# class method of type ``types.FunctionType``, unlike
# functools.partial which returns a function of type
# ``functools.partial``.
partial_func = partial(test_method,*test_params)
# rename the test to look like a testcase
partial_func.__name__ = 'test_' + partial_func.__name__
# insert the new function into the class as a test
setattr(cls, test_name + '_%s' % n, partial_func)
# rename test generator so it isn't called again by nose
test_gen.im_func.func_name = '__done_' + test_name