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import operator
import pytest
from grc.core.utils import expr_utils
id_getter = operator.itemgetter(0)
expr_getter = operator.itemgetter(1)
def test_simple():
objects = [
['c', '2 * a + b'],
['a', '1'],
['b', '2 * a + unknown * d'],
['d', '5'],
]
expected = [
['a', '1'],
['d', '5'],
['b', '2 * a + unknown * d'],
['c', '2 * a + b'],
]
out = expr_utils.sort_objects2(objects, id_getter, expr_getter)
assert out == expected
def test_other():
test = [
['c', '2 * a + b'],
['a', '1'],
['b', '2 * c + unknown'],
]
expr_utils.sort_objects2(test, id_getter, expr_getter, check_circular=False)
with pytest.raises(RuntimeError):
expr_utils.sort_objects2(test, id_getter, expr_getter)
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