test(parser::ast_builder): fix

src/parser/ast_builder.rs

@@ -393,17 +393,18 @@ mod tests {
         assert_eq!(build_ast(tokens), results);
     }
 
+    #[test]
     fn negative_parenthesis() {
-        let tokens = vec![minus(), one_token(), times(), open(), one_token(), close()];
-        let results = Node::Binary {
-            operator: times(),
-            lhs: Box::new(Node::Unary {
+        let tokens = vec![minus(), one_token(), times(), open(), minus(), one_token(), close()];
+        let results = Node::Unary {
             operator: minus(),
-                operand: Box::new(Node::Leaf(vec![one()])),
-            }),
+            operand: Box::new(Node::Binary {
+                operator: times(),
+                lhs:  Box::new(Node::Leaf(vec![one()])),
                 rhs: Box::new(Node::Unary {
                     operator: minus(),
                     operand: Box::new(Node::Leaf(vec![one()])),
+                })
             }),
         };
         assert_eq!(build_ast(tokens), results);