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# This script is used by test_misc.
import _imp
import _testinternalcapi
import json
import os
import sys
def import_singlephase():
assert '_testsinglephase' not in sys.modules
try:
import _testsinglephase
except ImportError:
sys.modules.pop('_testsinglephase', None)
return False
else:
del sys.modules['_testsinglephase']
return True
def check_singlephase(override):
# Check using the default setting.
settings_initial = _testinternalcapi.get_interp_settings()
allowed_initial = import_singlephase()
assert(_testinternalcapi.get_interp_settings() == settings_initial)
# Apply the override and check.
override_initial = _imp._override_multi_interp_extensions_check(override)
settings_after = _testinternalcapi.get_interp_settings()
allowed_after = import_singlephase()
# Apply the override again and check.
noop = {}
override_after = _imp._override_multi_interp_extensions_check(override)
settings_noop = _testinternalcapi.get_interp_settings()
if settings_noop != settings_after:
noop['settings_noop'] = settings_noop
allowed_noop = import_singlephase()
if allowed_noop != allowed_after:
noop['allowed_noop'] = allowed_noop
# Restore the original setting and check.
override_noop = _imp._override_multi_interp_extensions_check(override_initial)
if override_noop != override_after:
noop['override_noop'] = override_noop
settings_restored = _testinternalcapi.get_interp_settings()
allowed_restored = import_singlephase()
# Restore the original setting again.
override_restored = _imp._override_multi_interp_extensions_check(override_initial)
assert(_testinternalcapi.get_interp_settings() == settings_restored)
return dict({
'requested': override,
'override__initial': override_initial,
'override_after': override_after,
'override_restored': override_restored,
'settings__initial': settings_initial,
'settings_after': settings_after,
'settings_restored': settings_restored,
'allowed__initial': allowed_initial,
'allowed_after': allowed_after,
'allowed_restored': allowed_restored,
}, **noop)
def run_singlephase_check(override, outfd):
with os.fdopen(outfd, 'w') as outfile:
sys.stdout = outfile
sys.stderr = outfile
try:
results = check_singlephase(override)
json.dump(results, outfile)
finally:
sys.stdout = sys.__stdout__
sys.stderr = sys.__stderr__
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