def test__format_env_key_with_upper_case(self):
adapter = Adapter()
assert adapter._format_key('ABC 123') == 'ABC_123'
def test__format_env_key_with_trailing_spaces(self):
adapter = Adapter()
assert adapter._format_key(' abc 123 ') == 'ABC_123'
def test__format_env_key_with_mixed_case(self):
adapter = Adapter()
assert adapter._format_key('abC 123') == 'ABC_123'
