diff --git a/Lib/test/test_generators.py b/Lib/test/test_generators.py
index 03fed30171dc62..4b091c54a4875f 100644
--- a/Lib/test/test_generators.py
+++ b/Lib/test/test_generators.py
@@ -287,70 +287,58 @@ class ModifyTest(unittest.TestCase):
         2j,
     ]
 
-    def modify_f_locals(self, g, local, new_iter):
-        g.gi_frame.f_locals[local] = new_iter
-        return g
+    def genexpr(self):
+        return (x for x in range(10))
 
-    def new_gen_from_gi_code(self, g, new_iter):
-        generator_func = types.FunctionType(g.gi_code, {})
-        return generator_func(new_iter)
-
-    def test_modify_genexpr(self):
-        def genexpr():
-            return (x for x in range(10))
+    def genfunc(self):
+        def gen(it):
+            for x in it:
+                yield x
+        return gen(range(10))
 
-        def get_genexpr_f_locals(self, new_iter):
-            return self.modify_f_locals(genexpr(), '.0', new_iter)
+    def process_tests(self, get_generator):
+        for obj in self.iterables:
+            g_obj = get_generator(obj)
+            with self.subTest(g_obj=g_obj, obj=obj):
+                self.assertListEqual(list(g_obj), list(obj))
 
-        def get_genexpr_gi_code(self, new_iter):
-            return self.new_gen_from_gi_code(genexpr(), new_iter)
+            g_iter = get_generator(iter(obj))
+            with self.subTest(g_iter=g_iter, obj=obj):
+                self.assertListEqual(list(g_iter), list(obj))
 
         err_regex = "'.*' object is not iterable"
+        for obj in self.non_iterables:
+            g_obj = get_generator(obj)
+            with self.subTest(g_obj=g_obj):
+                self.assertRaisesRegex(TypeError, err_regex, list, g_obj)
 
-        for get_genexpr in [get_genexpr_f_locals, get_genexpr_gi_code]:
-            for obj in self.iterables:
-                g_obj = get_genexpr(self, obj)
-                with self.subTest(g_obj=g_obj, err_regex=err_regex):
-                    self.assertListEqual(list(g_obj), list(obj))
-
-                g_iter = get_genexpr(self, iter(obj))
-                with self.subTest(g_iter=g_iter, obj=obj):
-                    self.assertListEqual(list(g_iter), list(obj))
-
-            for obj in self.non_iterables:
-                g_obj = get_genexpr(self, obj)
-                with self.subTest(g_obj=g_obj, err_regex=err_regex):
-                    self.assertRaisesRegex(TypeError, err_regex, list, g_obj)
-
-    def test_modify_genfunc(self):
-        def genfunc():
-            def gen(it):
-                for x in it:
-                    yield x
-            return gen(range(10))
+    def test_modify_f_locals(self):
+        def modify_f_locals(g, local, obj):
+            g.gi_frame.f_locals[local] = obj
+            return g
 
-        def get_genfunc_f_locals(self, new_iter):
-            return self.modify_f_locals(genfunc(), 'it', new_iter)
+        def get_generator_genexpr(obj):
+            return modify_f_locals(self.genexpr(), '.0', obj)
 
-        def get_genfunc_gi_code(self, new_iter):
-            return self.new_gen_from_gi_code(genfunc(), new_iter)
+        def get_generator_genfunc(obj):
+            return modify_f_locals(self.genfunc(), 'it', obj)
 
-        err_regex = "'.*' object is not iterable"
+        self.process_tests(get_generator_genexpr)
+        self.process_tests(get_generator_genfunc)
+
+    def test_new_gen_from_gi_code(self):
+        def new_gen_from_gi_code(g, obj):
+            generator_func = types.FunctionType(g.gi_code, {})
+            return generator_func(obj)
 
-        for get_genfunc in [get_genfunc_f_locals, get_genfunc_gi_code]:
-            for obj in self.iterables:
-                g_obj = get_genfunc(self, obj)
-                with self.subTest(g_obj=g_obj, obj=obj):
-                    self.assertListEqual(list(g_obj), list(obj))
+        def get_generator_genexpr(obj):
+            return new_gen_from_gi_code(self.genexpr(), obj)
 
-                g_iter = get_genfunc(self, iter(obj))
-                with self.subTest(g_iter=g_iter, obj=obj):
-                    self.assertListEqual(list(g_iter), list(obj))
+        def get_generator_genfunc(obj):
+            return new_gen_from_gi_code(self.genfunc(), obj)
 
-            for obj in self.non_iterables:
-                g_obj = get_genfunc(self, obj)
-                with self.subTest(g_obj=g_obj, err_regex=err_regex):
-                    self.assertRaisesRegex(TypeError, err_regex, list, g_obj)
+        self.process_tests(get_generator_genexpr)
+        self.process_tests(get_generator_genfunc)
 
 
 class ExceptionTest(unittest.TestCase):