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Warn about assigning to Py3k keywords (True and False)

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This commit is contained in:
Benjamin Peterson 2008-06-08 22:52:37 +00:00
parent cbd78133fa
commit d5efd20406
2 changed files with 76 additions and 33 deletions
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49
Lib/test/test_py3kwarn.py
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@ -16,6 +16,55 @@ class TestPy3KWarnings(unittest.TestCase):
exec "`2`" in {}
self.assertWarning(None, w, expected)
def test_bool_assign(self):
# So we don't screw up our globals
def safe_exec(expr):
def f(**kwargs): pass
exec expr in {'f' : f}
expected = "assignment to True or False is forbidden in 3.x"
with catch_warning() as w:
safe_exec("True = False")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("False = True")
self.assertWarning(None, w, expected)
with catch_warning() as w:
try:
safe_exec("obj.False = True")
except NameError: pass
self.assertWarning(None, w, expected)
with catch_warning() as w:
try:
safe_exec("obj.True = False")
except NameError: pass
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("def False(): pass")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("def True(): pass")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("class False: pass")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("class True: pass")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("def f(True=43): pass")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("def f(False=None): pass")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("f(False=True)")
self.assertWarning(None, w, expected)
with catch_warning() as w:
safe_exec("f(True=1)")
self.assertWarning(None, w, expected)
def test_type_inequality_comparisons(self):
expected = 'type inequality comparisons not supported in 3.x'
with catch_warning() as w: