def test_query_attribute__not_found(self):
var_reader = VariableReader()
mock_object = {"name": "object name"}
value = var_reader.query_attribute(mock_object, "foobar")
assert value is None
def test_query_attribute__bad_type(self):
var_reader = VariableReader()
mock_object = ["name", "object name"]
value = var_reader.query_attribute(mock_object, "name")
assert value is None
def test_query_attribute__success(self):
var_reader = VariableReader()
mock_object = {"name": "object name"}
value = var_reader.query_attribute(mock_object, "name")
assert value == "object name"