diff --git a/final/test/arrow-function/ArrowFunctionExpression.test.js b/final/test/arrow-function/ArrowFunctionExpression.test.js
index c81e571..0b04e57 100644
--- a/final/test/arrow-function/ArrowFunctionExpression.test.js
+++ b/final/test/arrow-function/ArrowFunctionExpression.test.js
@@ -1,9 +1,9 @@
-const test = require('ava');
-const { Scope, customEval } = require('../../eval');
+const test = require("ava");
+const { Scope, customEval } = require("../../eval");
 
-test("ArrowFunctionExpression-1", t => {
+test("ArrowFunctionExpression-1", (t) => {
   const scope = new Scope({
-    name: "world"
+    name: "world",
   });
 
   const func = customEval(
@@ -22,7 +22,7 @@ module.exports = func;
   t.deepEqual(func(), "hello world");
 });
 
-test("ArrowFunctionExpression-2", t => {
+test("ArrowFunctionExpression-2", (t) => {
   const scope = new Scope();
 
   const func = customEval(
@@ -36,11 +36,11 @@ module.exports = func;
 
   t.true(typeof func === "function");
   t.deepEqual(func.length, 0);
-  t.deepEqual(func.name, "");
+  t.deepEqual(func.name, "func");
   t.deepEqual(func(), "hello undefined");
 });
 
-test("ArrowFunctionExpression-3", t => {
+test("ArrowFunctionExpression-3", (t) => {
   const scope = new Scope();
 
   const func = customEval(
diff --git a/final/test/this/ThisExpression.test.js b/final/test/this/ThisExpression.test.js
index efe723c..76e0861 100644
--- a/final/test/this/ThisExpression.test.js
+++ b/final/test/this/ThisExpression.test.js
@@ -1,7 +1,7 @@
-const test = require('ava');
-const { customEval, Scope } = require('../../eval');
+const test = require("ava");
+const { customEval, Scope } = require("../../eval");
 
-test("ThisExpression", t => {
+test("ThisExpression", (t) => {
   const scope = new Scope();
 
   const func = customEval(
@@ -22,3 +22,24 @@ module.exports = t;
 
   t.deepEqual(ctx.name, "hello");
 });
+
+test("ThisNestExpression", (t) => {
+  const func = customEval(`
+    function f(){
+      let b = 1;
+      let a = {
+        b:2,
+        c: ()=>{
+          if(this) this.b += 1
+        },
+        d: function() {
+          if(this) this.b += 1
+        }
+      }
+      a.d();
+      return [a.b , b];
+    }
+    module.exports = f;
+  `);
+  t.deepEqual(func(), [3, 1]);
+});