refactor slightly

Author: tybug

hypothesis-python/src/hypothesis/internal/conjecture/shrinker.py

@@ -973,9 +973,8 @@ def __changed_nodes(self):
             assert len(prev_nodes) == len(new_nodes)
             for i, (n1, n2) in enumerate(zip(prev_nodes, new_nodes)):
                 assert n1.ir_type == n2.ir_type
-                if ir_value_equal(n1.ir_type, n1.value, n2.value):
-                    continue
-                self.__all_changed_nodes.add(i)
+                if not ir_value_equal(n1.ir_type, n1.value, n2.value):
+                    self.__all_changed_nodes.add(i)
 
         return self.__all_changed_nodes
 

hypothesis-python/tests/conjecture/test_ir.py

@@ -404,12 +404,11 @@ def test_node_with_same_ir_type_but_different_value_is_invalid(data):
     assert data.status is Status.INVALID
 
 
-@given(st.data())
-def test_data_with_changed_was_forced(data):
+@given(ir_nodes(was_forced=False))
+def test_data_with_changed_was_forced(node):
     # we had a normal node and then tried to draw a different forced value from it.
     # ir tree: v1 [was_forced=False]
     # drawing:    [forced=v2]
-    node = data.draw(ir_nodes(was_forced=False))
     data = ConjectureData.for_ir_tree([node])
 
     draw_func = getattr(data, f"draw_{node.ir_type}")