diff --git a/tests/filter.rs b/tests/filter.rs
index 8fd220d..d1c94a6 100644
--- a/tests/filter.rs
+++ b/tests/filter.rs
@@ -141,78 +141,78 @@ fn return_type() {
 fn op_default() {
     setup();
 
-//    select_and_then_compare(
-//        "$.school[?(@.friends == @.friends)]",
-//        read_json("./benchmark/data_obj.json"),
-//        json!([{
-//            "friends": [
-//                {"id": 0, "name": "Millicent Norman"},
-//                {"id": 1, "name": "Vincent Cannon" },
-//                {"id": 2, "name": "Gray Berry"}
-//            ]
-//        }]),
-//    );
-//
-//    select_and_then_compare(
-//        "$.friends[?(@.name)]",
-//        read_json("./benchmark/data_obj.json"),
-//        json!([
-//            { "id" : 1, "name" : "Vincent Cannon" },
-//            { "id" : 2, "name" : "Gray Berry" }
-//        ]),
-//    );
-//
-//    select_and_then_compare(
-//        "$.friends[?(@.id >= 2)]",
-//        read_json("./benchmark/data_obj.json"),
-//        json!([
-//            { "id" : 2, "name" : "Gray Berry" }
-//        ]),
-//    );
-//
-//    select_and_then_compare(
-//        "$.friends[?(@.id >= 2 || @.id == 1)]",
-//        read_json("./benchmark/data_obj.json"),
-//        json!([
-//            { "id" : 2, "name" : "Gray Berry" },
-//            { "id" : 1, "name" : "Vincent Cannon" }
-//        ]),
-//    );
-//
-//    select_and_then_compare(
-//        "$.friends[?( (@.id >= 2 || @.id == 1) && @.id == 0)]",
-//        read_json("./benchmark/data_obj.json"),
-//        json!([Value::Null]),
-//    );
-//
-//    select_and_then_compare(
-//        "$..friends[?(@.id == $.index)].id",
-//        read_json("./benchmark/data_obj.json"),
-//        json!([0, 0]),
-//    );
-//
-//    select_and_then_compare(
-//        "$..book[?($.store.bicycle.price < @.price)].price",
-//        read_json("./benchmark/example.json"),
-//        json!([22.99]),
-//    );
-//
-//    select_and_then_compare(
-//        "$..book[?( (@.price == 12.99 || @.category == 'reference') && @.price > 10)].price",
-//        read_json("./benchmark/example.json"),
-//        json!([12.99]),
-//    );
-//
-//    select_and_then_compare(
-//        "$..[?(@.age > 40)]",
-//        json!([
-//            { "name": "이름1", "age": 40, "phone": "+33 12341234" },
-//            { "name": "이름2", "age": 42, "phone": "++44 12341234" }
-//        ]),
-//        json!([
-//            { "name" : "이름2", "age" : 42, "phone" : "++44 12341234" }
-//        ]),
-//    );
+    select_and_then_compare(
+        "$.school[?(@.friends == @.friends)]",
+        read_json("./benchmark/data_obj.json"),
+        json!([{
+            "friends": [
+                {"id": 0, "name": "Millicent Norman"},
+                {"id": 1, "name": "Vincent Cannon" },
+                {"id": 2, "name": "Gray Berry"}
+            ]
+        }]),
+    );
+
+    select_and_then_compare(
+        "$.friends[?(@.name)]",
+        read_json("./benchmark/data_obj.json"),
+        json!([
+            { "id" : 1, "name" : "Vincent Cannon" },
+            { "id" : 2, "name" : "Gray Berry" }
+        ]),
+    );
+
+    select_and_then_compare(
+        "$.friends[?(@.id >= 2)]",
+        read_json("./benchmark/data_obj.json"),
+        json!([
+            { "id" : 2, "name" : "Gray Berry" }
+        ]),
+    );
+
+    select_and_then_compare(
+        "$.friends[?(@.id >= 2 || @.id == 1)]",
+        read_json("./benchmark/data_obj.json"),
+        json!([
+            { "id" : 2, "name" : "Gray Berry" },
+            { "id" : 1, "name" : "Vincent Cannon" }
+        ]),
+    );
+
+    select_and_then_compare(
+        "$.friends[?( (@.id >= 2 || @.id == 1) && @.id == 0)]",
+        read_json("./benchmark/data_obj.json"),
+        json!([Value::Null]),
+    );
+
+    select_and_then_compare(
+        "$..friends[?(@.id == $.index)].id",
+        read_json("./benchmark/data_obj.json"),
+        json!([0, 0]),
+    );
+
+    select_and_then_compare(
+        "$..book[?($.store.bicycle.price < @.price)].price",
+        read_json("./benchmark/example.json"),
+        json!([22.99]),
+    );
+
+    select_and_then_compare(
+        "$..book[?( (@.price == 12.99 || @.category == 'reference') && @.price > 10)].price",
+        read_json("./benchmark/example.json"),
+        json!([12.99]),
+    );
+
+    select_and_then_compare(
+        "$..[?(@.age > 40)]",
+        json!([
+            { "name": "이름1", "age": 40, "phone": "+33 12341234" },
+            { "name": "이름2", "age": 42, "phone": "++44 12341234" }
+        ]),
+        json!([
+            { "name" : "이름2", "age" : 42, "phone" : "++44 12341234" }
+        ]),
+    );
 
     select_and_then_compare(
         "$..[?(@.age >= 30)]",