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Copy pathtest_sitefix.py
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45 lines (36 loc) · 1.56 KB
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import sys
import optparse
from bpython.test import FixLanguageTestCase as TestCase
from bpython._py3compat import py3
from bpython.curtsiesfrontend import sitefix
class AttrReplaced(object):
def __init__(self, module, attr, replacement):
self.module = module
self.attr = attr
self.replacement = replacement
def __enter__(self):
if hasattr(self.module, self.attr):
self.orig_value = getattr(self.module, self.attr)
setattr(self.module, self.attr, self.replacement)
def __exit__(self, exc_type, exc_value, traceback):
if hasattr(self, 'orig_value'):
setattr(self.module, self.attr, self.replacement)
else:
delattr(self.module, self.attr)
class TestCurtsiesReevaluateWithImport(TestCase):
def test_reload_works(self):
orig = optparse.SUPPRESS_HELP
with AttrReplaced(optparse, 'SUPPRESS_HELP', 1):
# reload(optparse)
sitefix.reload(optparse)
self.assertEqual(optparse.SUPPRESS_HELP, orig)
def test_reload_sys(self):
with AttrReplaced(sys, 'stdin', 1):
with AttrReplaced(sys, 'a', 2):
with AttrReplaced(sys, 'version', 3):
sitefix.reload(sys)
self.assertEqual(sys.a, 2) # new attrs stick around
self.assertEqual(sys.stdin, 1) # stdin stays
if not py3:
# In Python 3 sys attributes are not replaced on reload
self.assertNotEqual(sys.version, 3) # in Python 2