add test (why who added the suggestion for module name didn't add the traceback test?)

Author: Locked-chess-official

Lib/test/test_traceback.py

@@ -5004,6 +5004,26 @@ def func():
         actual = self.get_suggestion(func)
         self.assertIn("forget to import '_io'", actual)
 
+    def test_import_builtin_module_typo_suggestion(self):
+        def func():
+            import itertool # noqa: F401
+
+        actual = self.get_suggestion(func)
+        self.assertIn("Did you mean: 'itertools'?", actual)
+
+    def test_import_file_module_typo_suggestion(self):
+        def func():
+            import abs # noqa: F401
+
+        actual = self.get_suggestion(func)
+        self.assertIn("Did you mean: 'abc'?", actual)
+
+    def test_import_submodule_typo_suggestion(self):
+        def func():
+            import multiprocessing.dumy # noqa: F401
+
+        actual = self.get_suggestion(func)
+        self.assertIn("Did you mean: 'multiprocessing.dummy'?", actual)
 
 
 class PurePythonSuggestionFormattingTests(