From baee7723a86760b82fd0b8158ecb62a12c80f611 Mon Sep 17 00:00:00 2001
From: afeiship <afeiship@gmail.com>
Date: Wed, 12 Dec 2018 10:05:35 +0800
Subject: [PATCH] wip

---
 docs/2018-12/2018-12-10/009-async.md          | 21 -------------------
 .../2018-12-11/001-resolves-rejects.md        | 21 +++++++++++++++++++
 src/2018-12/2018-12/async.test.js             | 20 +++++++++++++++---
 3 files changed, 38 insertions(+), 24 deletions(-)
 create mode 100644 docs/2018-12/2018-12-11/001-resolves-rejects.md

diff --git a/docs/2018-12/2018-12-10/009-async.md b/docs/2018-12/2018-12-10/009-async.md
index 74771ca..8435db7 100644
--- a/docs/2018-12/2018-12-10/009-async.md
+++ b/docs/2018-12/2018-12-10/009-async.md
@@ -39,24 +39,3 @@ test('the fetch fails with an error', () => {
 });
 ```
 
-
-
-## .resolves / .rejects
-
-您还可以使用 .resolves 匹配器在您期望的声明，Jest 会等待这一 Promise 来解决。如果 Promise 被拒绝，则测试将自动失败。
-```js
-test('the data is peanut butter', () => {
-  expect.assertions(1);
-  return expect(fetchData()).resolves.toBe('peanut butter');
-});
-```
-一定要返回承诺 - 如果你省略 return 语句，您的测试将在 fetchData 完成之前完成。
-
-如果你想要 Promise 被拒绝，使用 .catch 方法。 它参照工程 .resolves 匹配器。 如果 Promise 被拒绝，则测试将自动失败。
-```js
-test('the fetch fails with an error', () => {
-  expect.assertions(1);
-  return expect(fetchData()).rejects.toMatch('error');
-});
-```
-
diff --git a/docs/2018-12/2018-12-11/001-resolves-rejects.md b/docs/2018-12/2018-12-11/001-resolves-rejects.md
new file mode 100644
index 0000000..907ae89
--- /dev/null
+++ b/docs/2018-12/2018-12-11/001-resolves-rejects.md
@@ -0,0 +1,21 @@
+# resolves/rejects:
+
+## .resolves / .rejects
+
+您还可以使用 .resolves 匹配器在您期望的声明，Jest 会等待这一 Promise 来解决。如果 Promise 被拒绝，则测试将自动失败。
+```js
+test('the data is peanut butter', () => {
+  expect.assertions(1);
+  return expect(fetchData()).resolves.toBe('peanut butter');
+});
+```
+一定要返回承诺 - 如果你省略 return 语句，您的测试将在 fetchData 完成之前完成。
+
+如果你想要 Promise 被拒绝，使用 .catch 方法。 它参照工程 .resolves 匹配器。 如果 Promise 被拒绝，则测试将自动失败。
+```js
+test('the fetch fails with an error', () => {
+  expect.assertions(1);
+  return expect(fetchData()).rejects.toMatch('error');
+});
+```
+
diff --git a/src/2018-12/2018-12/async.test.js b/src/2018-12/2018-12/async.test.js
index 47b2a5b..15fe21a 100644
--- a/src/2018-12/2018-12/async.test.js
+++ b/src/2018-12/2018-12/async.test.js
@@ -1,7 +1,15 @@
-function fetchData(inCallback){
-    setTimeout(()=>{
+function fetchData(inCallback) {
+    setTimeout(() => {
         inCallback('peanut butter')
-    },2000)
+    }, 2000)
+}
+
+function fetchWithPromise() {
+    return new Promise((resolve, reject) => {
+        setTimeout(() => {
+            resolve('peanut butter')
+        }, 1000)
+    })
 }
 
 // fetch async:
@@ -11,4 +19,10 @@ test('the data is peanut butter', done => {
         done();
     }
     fetchData(callback);
+});
+
+test('testa data is peanut butter with promise',()=>{
+    fetchWithPromise().then(response=>{
+        expect(response).toBe('peanut butter');
+    });
 });
\ No newline at end of file