"""Tools so trivial that tracebacks should not descend into them
We define the ``__unittest`` symbol in their module namespace so unittest will
skip them when printing tracebacks, just as it does for their corresponding
methods in ``unittest`` proper.
"""
import re
import unittest
__all__ = ['ok_', 'eq_']
# Use the same flag as unittest itself to prevent descent into these functions:
__unittest = 1
def ok_(expr, msg=None):
"""Shorthand for assert. Saves 3 whole characters!
"""
if not expr:
raise AssertionError(msg)
def eq_(a, b, msg=None):
"""Shorthand for 'assert a == b, "%r != %r" % (a, b)
"""
if not a == b:
raise AssertionError(msg or "%r != %r" % (a, b))
#
# Expose assert* from unittest.TestCase
# - give them pep8 style names
#
caps = re.compile('([A-Z])')
def pep8(name):
return caps.sub(lambda m: '_' + m.groups()[0].lower(), name)
class Dummy(unittest.TestCase):
def nop():
pass
_t = Dummy('nop')
for at in [ at for at in dir(_t)
if at.startswith('assert') and not '_' in at ]:
pepd = pep8(at)
vars()[pepd] = getattr(_t, at)
__all__.append(pepd)
del Dummy
del _t
del pep8
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