all tests pass

src/contracting/compilation/whitelists.py

@@ -13,7 +13,7 @@
                      ast.Subscript, ast.Compare, ast.Return, ast.NameConstant, ast.Expr, ast.keyword, ast.Sub,
                      ast.arguments, ast.List, ast.Set, ast.Str, ast.UnaryOp, ast.Pass, ast.Tuple, ast.Div, ast.In,
                      ast.NotIn, ast.Gt, ast.Lt, ast.Starred, ast.Mod, ast.NotEq, ast.For, ast.While, ast.ListComp,
-                     ast.comprehension, ast.Slice, ast.USub, ast.BoolOp, ast.And, ast.Or, ast.Mult, ast.IsNot, ast.Is}
+                     ast.comprehension, ast.Slice, ast.USub, ast.BoolOp, ast.And, ast.Or, ast.Mult, ast.IsNot, ast.Is, ast.Constant}
 
 ILLEGAL_AST_TYPES = {
     ast.AsyncFor,

tests/unit/test_linter.py

@@ -30,8 +30,17 @@ def a():
 
     # TODO - Verify this tetst is working as expected.
     def test_good_ast_type(self):
+        # Dictionary to handle special cases of AST nodes that require arguments
+        special_cases = {
+            ast.Index: lambda: ast.Index(value=ast.Str(s='test')),
+        }
+
         for t in ALLOWED_AST_TYPES:
-            _t = t()
+            if t in special_cases:
+                _t = special_cases[t]()
+            else:
+                _t = t()
+
             self.l.ast_types(_t, 1)
             self.assertListEqual([], self.l._violations)