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# -*- coding: utf-8 -*-
import importlib
from os import environ as env
from unittest.mock import patch
import expandvars
@patch.dict(env, {"EXPANDVARS_RECOVER_NULL": "foo", "BAR": "bar"}, clear=True)
def test_strict_parsing_recover_null():
importlib.reload(expandvars)
assert expandvars.expandvars("${FOO:?}:${BAR?}") == "foo:bar"
assert expandvars.expandvars("${FOO:?custom err}:${BAR?custom err}") == "foo:bar"
assert expandvars.expandvars("$FOO$BAR", nounset=True) == "foobar"
assert expandvars.expandvars("${FOO}:${BAR}", nounset=True) == "foo:bar"
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