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Backport of decimal module context management updates from rev 51694 to 2.5 release branch

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This commit is contained in:
Nick Coghlan 2006-09-03 01:08:30 +00:00
parent f07b590d7e
commit c48daf5bc4
5 changed files with 107 additions and 73 deletions
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26
Lib/test/test_contextlib.py
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@ -330,32 +330,6 @@ class LockContextTestCase(unittest.TestCase):
return True
self.boilerPlate(lock, locked)
class DecimalContextTestCase(unittest.TestCase):
# XXX Somebody should write more thorough tests for this
def testBasic(self):
ctx = decimal.getcontext()
orig_context = ctx.copy()
try:
ctx.prec = save_prec = decimal.ExtendedContext.prec + 5
with decimal.ExtendedContext.get_manager():
self.assertEqual(decimal.getcontext().prec,
decimal.ExtendedContext.prec)
self.assertEqual(decimal.getcontext().prec, save_prec)
try:
with decimal.ExtendedContext.get_manager():
self.assertEqual(decimal.getcontext().prec,
decimal.ExtendedContext.prec)
1/0
except ZeroDivisionError:
self.assertEqual(decimal.getcontext().prec, save_prec)
else:
self.fail("Didn't raise ZeroDivisionError")
finally:
decimal.setcontext(orig_context)
# This is needed to make the test actually run under regrtest.py!
def test_main():
run_suite(