style: fix ruff errors

Author: lars-reimann

src/_gettsim/policy_environment.py

@@ -186,7 +186,7 @@ def upsert_functions(
         result = object.__new__(PolicyEnvironment)
         result._functions = new_functions  # noqa: SLF001
         result._params = self._params  # noqa: SLF001
-        result._aggregate_by_group_specs = (
+        result._aggregate_by_group_specs = (  # noqa: SLF001
             self._aggregate_by_group_specs
         )
         result._aggregate_by_p_id_specs = self._aggregate_by_p_id_specs  # noqa: SLF001
@@ -211,7 +211,7 @@ def replace_all_parameters(self, params: dict[str, Any]):
         result = object.__new__(PolicyEnvironment)
         result._functions = self._functions  # noqa: SLF001
         result._params = params  # noqa: SLF001
-        result._aggregate_by_group_specs = (
+        result._aggregate_by_group_specs = (  # noqa: SLF001
             self._aggregate_by_group_specs
         )
         result._aggregate_by_p_id_specs = self._aggregate_by_p_id_specs  # noqa: SLF001

src/_gettsim_tests/test_policy_environment.py

@@ -17,7 +17,7 @@
 
 class TestPolicyEnvironment:
     def test_get_function_by_name_exists(self):
-        function = PolicyFunction(lambda x: 1, function_name="foo")
+        function = PolicyFunction(lambda: 1, function_name="foo")
         environment = PolicyEnvironment([function])
 
         assert environment.get_function_by_name("foo") == function
@@ -33,19 +33,19 @@ def test_get_function_by_name_does_not_exist(self):
             PolicyEnvironment([], {}),
             PolicyEnvironment(
                 [
-                    PolicyFunction(lambda x: 1, function_name="foo"),
+                    PolicyFunction(lambda: 1, function_name="foo"),
                 ]
             ),
             PolicyEnvironment(
                 [
-                    PolicyFunction(lambda x: 1, function_name="foo"),
-                    PolicyFunction(lambda x: 2, function_name="bar"),
+                    PolicyFunction(lambda: 1, function_name="foo"),
+                    PolicyFunction(lambda: 2, function_name="bar"),
                 ]
             ),
         ],
     )
     def test_upsert_functions(self, environment: PolicyEnvironment):
-        new_function = PolicyFunction(lambda x: 3, function_name="foo")
+        new_function = PolicyFunction(lambda: 3, function_name="foo")
         new_environment = environment.upsert_functions(new_function)
 
         assert new_environment.get_function_by_name("foo") == new_function