add rename tests#

test/refactor/rename.py

@@ -0,0 +1,17 @@
+"""
+Test coverage for renaming is mostly being done by testing
+`Script.get_related_names`.
+"""
+
+# --- simple
+def test1():
+    #? 7 blabla
+    test1()
+    AssertionError
+    return test1, test1.not_existing
+# +++
+def blabla():
+    blabla()
+    AssertionError
+    return blabla, blabla.not_existing
+