Add a test to check that no old msgid or symbol are used (#5839)

* Add deleted msgid and symbol from the Python 3K+ checker and other deleted checks.

See https://github.com/PyCQA/pylint/pull/4942

Closes #5729

Co-authored-by: Daniël van Noord <13665637+DanielNoord@users.noreply.github.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/message/test_no_removed_msgid_or_symbol_used.py b/tests/message/test_no_removed_msgid_or_symbol_used.py
new file mode 100644
index 000000000..c6ece3679
--- /dev/null
+++ b/tests/message/test_no_removed_msgid_or_symbol_used.py
@@ -0,0 +1,17 @@
+# Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+# For details: https://github.com/PyCQA/pylint/blob/main/LICENSE
+
+from pylint.constants import DELETED_MESSAGES
+from pylint.lint import PyLinter
+
+
+def test_no_removed_msgid_or_symbol_used(linter: PyLinter) -> None:
+    """Tests that we're not using deleted msgid or symbol.
+
+    This could cause occasional bugs, but more importantly confusion and inconsistencies
+    when searching for old msgids online. See https://github.com/PyCQA/pylint/issues/5729
+    """
+    for msgid, symbol, old_names in DELETED_MESSAGES:
+        linter.msgs_store.message_id_store.register_message_definition(
+            msgid, symbol, old_names
+        )