feat: add test case to astsexplorer

close #48

Author: gengjiawen

parser/ast_tree_test.rs

@@ -13,74 +13,84 @@ mod tests {
         assert_snapshot!(name, ast, input);
     }
 
+    // https://astexplorer.net/#/gist/3a8ce5192e08ab973d255db5295671b1/831267b339e5562244c88f88587744153fbcfb6b
     #[test]
     fn test_let() {
         let input = "let a = 3";
         test_ast_tree("test_let", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/f462e81e4940309f2c6a694a3bdedd283e7b035d
     #[test]
     fn test_string() {
         let input = r#""jw""#;
         test_ast_tree("test_string", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/e74ab41b095abe19f2dd0c0398ffae94674d0a8c
     #[test]
     fn test_array() {
         let input = "[1, true]";
         test_ast_tree("test_array", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/9263c8a45953e56d209597e90299547a733622a9
     #[test]
     fn test_hash() {
         let input = r#"{"a": 1}"#;
         test_ast_tree("test_hash", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/ebbaf31807ccdcec6605aaa2d3a222258cac7f28
     #[test]
     fn test_return() {
         let input = "return 3";
         test_ast_tree("test_return", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/5bf612e5f406bc59076f54371671af05022a74d0
     #[test]
     fn test_unary() {
         let input = "-3";
         test_ast_tree("test_unary", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/7a2707a45fffc15d322807ffa2738b16b2690a67
     #[test]
     fn test_binary() {
         let input = "1 + 2 * 3";
         test_ast_tree("test_binary", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/ab013f6feb719e8bece669b375c8b2d43f2231d0
     #[test]
     fn test_binary_nested() {
         let input = "1+2+3";
         test_ast_tree("test_binary_nested", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/25ae0e103e732ace3d443a4bf0c620a44bedcd55
     #[test]
     fn test_if() {
         let input = "if (x < y) { x } else { y }";
         test_ast_tree("test_if", input)
     }
 
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/9f5b73a95afba5c5300f67ac69f837048da77750
     #[test]
     fn test_func_declaration() {
         let input = "fn(x) { x };";
         test_ast_tree("test_func_declaration", input)
     }
 
-    // JS: https://astexplorer.net/#/gist/b263eabba126aba94f1ad1c00ccce45e/2eb24376e622e07cf04915ee7eea1bc1c49d6122
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/3213bab3987673584c55b2f5ff4d723369aecd8d
     #[test]
     fn test_func_call() {
         let input = "add(1, 2)";
         test_ast_tree("test_func_call", input)
     }
 
-    // JS: https://astexplorer.net/#/gist/785eba71d71896939d5e91e0d445d357/a7bc3d915da84c16313da691a42b4a410fc3eef0
+    // https://astexplorer.net/#/gist/0911a07ddb31d261074d1d59f6291a7c/3d5d8bfe7ec5b192674f46211408a07d88d14c65
     #[test]
     fn test_index() {
         let input = "a[1]";