41 lines
785 B
Python
41 lines
785 B
Python
import operator
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import pytest
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from grc.core.utils import expr_utils
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id_getter = operator.itemgetter(0)
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expr_getter = operator.itemgetter(1)
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def test_simple():
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objects = [
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['c', '2 * a + b'],
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['a', '1'],
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['b', '2 * a + unknown * d'],
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['d', '5'],
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]
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expected = [
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['d', '5'],
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['a', '1'],
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['b', '2 * a + unknown * d'],
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['c', '2 * a + b'],
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]
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out = expr_utils.sort_objects(objects, id_getter, expr_getter)
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assert out == expected
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def test_circular():
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test = [
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['c', '2 * a + b'],
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['a', '1'],
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['b', '2 * c + unknown'],
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]
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# Should fail due to circular dependency
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with pytest.raises(Exception):
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expr_utils.sort_objects(test, id_getter, expr_getter)
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