From 7ab32c2607b282061182f9121667dcdc226da501 Mon Sep 17 00:00:00 2001
From: Congwei Bai <congweibai@gmail.com>
Date: Thu, 18 Aug 2022 21:47:51 +0930
Subject: [PATCH 1/2] toy promise

---
 index.js      | 33 +++++++++++++++++++--------------
 index.test.js |  9 ++++++---
 2 files changed, 25 insertions(+), 17 deletions(-)

diff --git a/index.js b/index.js
index 59d6c84..0516c2a 100644
--- a/index.js
+++ b/index.js
@@ -1,41 +1,46 @@
 function myPromise(constructor) {
   let self = this;
 
-  self.status = "pending" //定义状态改变前的初始状态
+  self.status = 'pending'; //定义状态改变前的初始状态
 
-  self.value = undefined;//定义状态为resolved的时候的状态
+  self.value = undefined; //定义状态为resolved的时候的状态
 
-  self.reason = undefined;//定义状态为rejected的时候的状态
+  self.reason = undefined; //定义状态为rejected的时候的状态
 
   function resolve(value) {
-
     // TODO resolve如何改变状态及返回结果
 
+    if (self.status === 'pending') {
+      self.value = value;
+      self.status = 'fullfilled';
+    }
   }
 
   function reject(reason) {
-
     // TODO reject如何改变状态及返回结果
-
+    if (self.status === 'pending') {
+      self.reason = String(reason);
+      self.status = 'rejected';
+    }
   }
 
   //捕获构造异常
 
   try {
-
     constructor(resolve, reject);
-
   } catch (e) {
-
     reject(e);
-
   }
-
 }
 
 myPromise.prototype.then = function (onFullfilled, onRejected) {
-
   //TODO then如何实现
+  if (this.status === 'fullfilled') {
+    onFullfilled(this.value);
+  }
 
-}
-module.exports = myPromise
+  if (this.status === 'rejected') {
+    onRejected(this.reason);
+  }
+};
+module.exports = myPromise;
diff --git a/index.test.js b/index.test.js
index cbb1027..479ff30 100644
--- a/index.test.js
+++ b/index.test.js
@@ -1,9 +1,12 @@
 const myPromise = require('./index');
+var assert = require('assert');
 
-var p = new myPromise(function (resolve, reject) { resolve('isOk') });
+var p = new myPromise(function (resolve, reject) {
+  resolve('isOk');
+});
 test('测试primose的then是否成功', () => {
   expect.assertions(1);
-  return p.then(data => {
+  return p.then((data) => {
     expect(data).toBe('isOk');
   });
-});
\ No newline at end of file
+});

From 8a77ebe7786d8067e0e09755bab278d42652e0d2 Mon Sep 17 00:00:00 2001
From: Congwei Bai <congweibai@gmail.com>
Date: Thu, 18 Aug 2022 21:50:14 +0930
Subject: [PATCH 2/2] revert test

---
 index.test.js | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/index.test.js b/index.test.js
index 479ff30..cbb1027 100644
--- a/index.test.js
+++ b/index.test.js
@@ -1,12 +1,9 @@
 const myPromise = require('./index');
-var assert = require('assert');
 
-var p = new myPromise(function (resolve, reject) {
-  resolve('isOk');
-});
+var p = new myPromise(function (resolve, reject) { resolve('isOk') });
 test('测试primose的then是否成功', () => {
   expect.assertions(1);
-  return p.then((data) => {
+  return p.then(data => {
     expect(data).toBe('isOk');
   });
-});
+});
\ No newline at end of file