🚸 Change error message

Author: EarlMilktea

python/swiflow/common.py

@@ -54,7 +54,7 @@ def _infer_layers_impl(pred: Mapping[_V, MutableSet[_V]], succ: Mapping[_V, Abst
                     next_work.add(v)
         work = next_work
     if len(ret) != len(succ):
-        msg = "Failed to determine layers for all nodes."
+        msg = "Cannot satisfy all the partial order constraints."
         raise ValueError(msg)
     return ret
 

tests/test_common.py

@@ -142,5 +142,5 @@ def test_dag(self) -> None:
     def test_cycle(self) -> None:
         g: nx.Graph[int] = nx.Graph([(0, 1), (1, 2), (2, 0)])
         flow = {0: {1}, 1: {2}, 2: {0}}
-        with pytest.raises(ValueError, match=r".*determine.*"):
+        with pytest.raises(ValueError, match=r".*constraints.*"):
             common.infer_layers(g, flow)