Robert Collins added the comment:
Thanks for landing this barry, there's a couple quirks with your improvements -
loadTestsFromModule(mod, foo, bar) will raise a TypeError but not warn about
foo the way loadTestsFromModule(mod, foo) will.
Secondly, the TypeError has an off-by-one error in its output:
loadTestsFromModule(mod, foo, bar) will claim 2 arguments were passed. Three
were.
diff -r d0ff527c53da Lib/unittest/loader.py
--- a/Lib/unittest/loader.py Mon Sep 08 14:21:37 2014 -0400
+++ b/Lib/unittest/loader.py Tue Sep 09 07:32:05 2014 +1200
@@ -79,12 +79,12 @@
# use_load_tests argument. For backward compatibility, we still
# accept the argument (which can also be the first position) but we
# ignore it and issue a deprecation warning if it's present.
- if len(args) == 1 or 'use_load_tests' in kws:
+ if len(args) or 'use_load_tests' in kws:
warnings.warn('use_load_tests is deprecated and ignored',
DeprecationWarning)
kws.pop('use_load_tests', None)
if len(args) > 1:
- raise TypeError('loadTestsFromModule() takes 1 positional argument
but {} were given'.format(len(args)))
+ raise TypeError('loadTestsFromModule() takes 1 positional argument
but {} were given'.format(len(args) + 1))
if len(kws) != 0:
# Since the keyword arguments are unsorted (see PEP 468), just
# pick the alphabetically sorted first argument to complain about,
diff -r d0ff527c53da Lib/unittest/test/test_loader.py
--- a/Lib/unittest/test/test_loader.py Mon Sep 08 14:21:37 2014 -0400
+++ b/Lib/unittest/test/test_loader.py Tue Sep 09 07:32:05 2014 +1200
@@ -272,7 +272,7 @@
# however use_load_tests (which sorts first) is ignored.
self.assertEqual(
str(cm.exception),
- 'loadTestsFromModule() takes 1 positional argument but 2 were
given')
+ 'loadTestsFromModule() takes 1 positional argument but 3 were
given')
@warningregistry
def test_loadTestsFromModule__use_load_tests_other_bad_keyword(self):
----------
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<http://bugs.python.org/issue16662>
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