diff --git a/libs/core/tests/unit_tests/runnables/test_runnable.py b/libs/core/tests/unit_tests/runnables/test_runnable.py
index 07ebd37abf..8ed3940cbe 100644
--- a/libs/core/tests/unit_tests/runnables/test_runnable.py
+++ b/libs/core/tests/unit_tests/runnables/test_runnable.py
@@ -138,16 +138,16 @@ class FakeTracer(BaseTracer):
                 "child_execution_order": None,
                 "trace_id": self._replace_uuid(run.trace_id) if run.trace_id else None,
                 "dotted_order": new_dotted_order,
-                "inputs": {
-                    k: self._replace_message_id(v) for k, v in run.inputs.items()
-                }
-                if isinstance(run.inputs, dict)
-                else run.inputs,
-                "outputs": {
-                    k: self._replace_message_id(v) for k, v in run.outputs.items()
-                }
-                if isinstance(run.outputs, dict)
-                else run.outputs,
+                "inputs": (
+                    {k: self._replace_message_id(v) for k, v in run.inputs.items()}
+                    if isinstance(run.inputs, dict)
+                    else run.inputs
+                ),
+                "outputs": (
+                    {k: self._replace_message_id(v) for k, v in run.outputs.items()}
+                    if isinstance(run.outputs, dict)
+                    else run.outputs
+                ),
             }
         )
 
@@ -1652,11 +1652,14 @@ async def test_default_method_implementations(mocker: MockerFixture) -> None:
 
     assert len(spy.call_args_list) == 2
     for i, call in enumerate(spy.call_args_list):
-        assert call.args[0] == ("hello" if i == 0 else "wooorld")
-        if i == 0:
+        call_arg = call.args[0]
+
+        if call_arg == "hello":
+            assert call_arg == "hello"
             assert call.args[1].get("tags") == ["a-tag"]
             assert call.args[1].get("metadata") == {}
         else:
+            assert call_arg == "wooorld"
             assert call.args[1].get("tags") == []
             assert call.args[1].get("metadata") == {"key": "value"}
 
@@ -1664,8 +1667,8 @@ async def test_default_method_implementations(mocker: MockerFixture) -> None:
 
     assert fake.batch(["hello", "wooorld"], dict(tags=["a-tag"])) == [5, 7]
     assert len(spy.call_args_list) == 2
+    assert set(call.args[0] for call in spy.call_args_list) == {"hello", "wooorld"}
     for i, call in enumerate(spy.call_args_list):
-        assert call.args[0] == ("hello" if i == 0 else "wooorld")
         assert call.args[1].get("tags") == ["a-tag"]
         assert call.args[1].get("metadata") == {}
     spy.reset_mock()
@@ -1686,28 +1689,15 @@ async def test_default_method_implementations(mocker: MockerFixture) -> None:
         5,
         7,
     ]
-    assert spy.call_args_list == [
-        mocker.call(
-            "hello",
-            dict(
-                metadata={"key": "value"},
-                tags=[],
-                callbacks=None,
-                recursion_limit=25,
-                run_id=None,
-            ),
-        ),
-        mocker.call(
-            "wooorld",
-            dict(
-                metadata={"key": "value"},
-                tags=[],
-                callbacks=None,
-                recursion_limit=25,
-                run_id=None,
-            ),
-        ),
-    ]
+    assert set(call.args[0] for call in spy.call_args_list) == {"hello", "wooorld"}
+    for call in spy.call_args_list:
+        assert call.args[1] == dict(
+            metadata={"key": "value"},
+            tags=[],
+            callbacks=None,
+            recursion_limit=25,
+            run_id=None,
+        )
 
 
 async def test_prompt() -> None: