diff --git a/tests/test_19_closure.py b/tests/test_19_closure.py
index 5d8e320c3..b644a8c8f 100644
--- a/tests/test_19_closure.py
+++ b/tests/test_19_closure.py
@@ -167,33 +167,24 @@ def closure():
     return closure
 
 
-class TestClosure(TestCaseBase):
-    def test_closure(self):
-        self.assert_results(foo, 1, paddle.to_tensor(2))
-        self.assert_results(foo2, paddle.to_tensor(2))
-        self.assert_results(foo3, paddle.to_tensor(2))
-        self.assert_results(foo5, paddle.to_tensor(2))
-
-    def test_global(self):
-        self.assert_results_with_global_check(
-            test_global, ["global_z"], paddle.to_tensor(2)
-        )
-
-    def test_lambda(self):
-        with strict_mode_guard(0):
-            self.assert_results(
-                lambda_closure, paddle.to_tensor(2), paddle.to_tensor(1)
-            )
+def non_local_test(t: paddle.Tensor):
+    a = 1
 
-    def test_numpy(self):
-        self.assert_results(numpy_sum, paddle.to_tensor(1))
+    def func1():
+        nonlocal a
+        t = a
+        a = 2
+        return t
 
-    def test_del_deref(self):
-        self.assert_results(closure_del)
+    def func2():
+        nonlocal a
+        a = 1
+        return a
 
-    def test_decorator(self):
-        self.assert_results(test_builtin_decorator)
-        self.assert_results(foo6, paddle.to_tensor(2))
+    t += func1()  # add 2
+    t += func2()  # add 1
+    t += a  # add 1
+    return t
 
 
 # Side Effect.
@@ -214,40 +205,43 @@ def test_slice_in_for_loop(x, iter_num=3):
     return out
 
 
-class TestExecutor3(TestCaseBase):
+class TestClosure(TestCaseBase):
     def test_closure(self):
-        tx = paddle.to_tensor([1.0, 2.0, 3.0])
-        # need side effect of list.
-        # self.assert_results(test_slice_in_for_loop, tx)
-
+        self.assert_results(foo, 1, paddle.to_tensor(2))
+        self.assert_results(foo2, paddle.to_tensor(2))
+        self.assert_results(foo3, paddle.to_tensor(2))
+        self.assert_results(foo5, paddle.to_tensor(2))
 
-def non_local_test(t: paddle.Tensor):
-    a = 1
+    def test_global(self):
+        self.assert_results_with_global_check(
+            test_global, ["global_z"], paddle.to_tensor(2)
+        )
 
-    def func1():
-        nonlocal a
-        t = a
-        a = 2
-        return t
+    def test_lambda(self):
+        with strict_mode_guard(0):
+            self.assert_results(
+                lambda_closure, paddle.to_tensor(2), paddle.to_tensor(1)
+            )
 
-    def func2():
-        nonlocal a
-        a = 1
-        return a
+    def test_numpy(self):
+        self.assert_results(numpy_sum, paddle.to_tensor(1))
 
-    t += func1()  # add 2
-    t += func2()  # add 1
-    t += a  # add 1
-    return t
+    def test_del_deref(self):
+        self.assert_results(closure_del)
 
+    def test_decorator(self):
+        self.assert_results(test_builtin_decorator)
+        self.assert_results(foo6, paddle.to_tensor(2))
 
-class TestExecutor4(TestCaseBase):
-    def test_closure(self):
+    def test_nolocal(self):
         tx = paddle.to_tensor([1.0])
         self.assert_results(non_local_test, tx)
 
+    def test_side_effect(self):
+        tx = paddle.to_tensor([1.0, 2.0, 3.0])
+        # need side effect of list.
+        self.assert_results_with_side_effects(test_slice_in_for_loop, tx)
 
-class TestCreateClosure(TestCaseBase):
     def test_create_closure(self):
         closure = create_closure()
         self.assert_results(closure)