From 1295591ee5ab6ad85ccd54195e3f649c57746201 Mon Sep 17 00:00:00 2001
From: iamkun <kunhello@outlook.com>
Date: Tue, 5 Feb 2019 15:49:38 +0800
Subject: [PATCH] fix: Allow set start day of week in locale && Allow set week
 in weekOfYear plugin

---
 src/index.js                   | 3 +--
 src/locale/zh-cn.js            | 1 +
 test/manipulate.test.js        | 5 +++++
 test/plugin/weekOfYear.test.js | 1 +
 4 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/index.js b/src/index.js
index d118279e4..f0f5fc1db 100644
--- a/src/index.js
+++ b/src/index.js
@@ -172,8 +172,7 @@ class Dayjs {
         return isStartOf ? instanceFactory(1, this.$M) :
           instanceFactory(0, this.$M + 1)
       case C.W: {
-        const l = this.$locale()
-        const weekStart = l && l.weekStart === 1 ? 1 : 0
+        const weekStart = this.$locale().weekStart || 0
         return isStartOf ? instanceFactory(this.$D - (this.$W - weekStart), this.$M) :
           instanceFactory(this.$D + (6 - (this.$W - weekStart)), this.$M)
       }
diff --git a/src/locale/zh-cn.js b/src/locale/zh-cn.js
index f30c297e9..bc28c7edf 100644
--- a/src/locale/zh-cn.js
+++ b/src/locale/zh-cn.js
@@ -8,6 +8,7 @@ const locale = {
   months: '一月_二月_三月_四月_五月_六月_七月_八月_九月_十月_十一月_十二月'.split('_'),
   monthsShort: '1月_2月_3月_4月_5月_6月_7月_8月_9月_10月_11月_12月'.split('_'),
   ordinal: n => `${n}日`,
+  weekStart: 1,
   formats: {
     LT: 'HH:mm',
     LTS: 'HH:mm:ss',
diff --git a/test/manipulate.test.js b/test/manipulate.test.js
index 98663ded7..fd5cb72d1 100644
--- a/test/manipulate.test.js
+++ b/test/manipulate.test.js
@@ -1,6 +1,7 @@
 import moment from 'moment'
 import MockDate from 'mockdate'
 import dayjs from '../src'
+import '../src/locale/zh-cn'
 
 beforeEach(() => {
   MockDate.set(new Date())
@@ -28,6 +29,10 @@ describe('StartOf EndOf', () => {
     expect(dayjs().startOf('otherString').valueOf()).toBe(moment().startOf('otherString').valueOf())
     expect(dayjs().endOf('otherString').valueOf()).toBe(moment().endOf('otherString').valueOf())
   })
+
+  it('StartOf week with locale', () => {
+    expect(dayjs().locale('zh-cn').startOf('week').format()).toBe(moment().locale('zh-cn').startOf('week').format())
+  })
 })
 
 
diff --git a/test/plugin/weekOfYear.test.js b/test/plugin/weekOfYear.test.js
index 82a080c6f..3736c08bb 100644
--- a/test/plugin/weekOfYear.test.js
+++ b/test/plugin/weekOfYear.test.js
@@ -22,4 +22,5 @@ it('Week of year', () => {
   expect(dayjs().weeks(week).week()).toBe(moment().weeks(week).week())
   expect(dayjs().weeks(-week).week()).toBe(moment().weeks(-week).week())
   expect(dayjs().weeks(55).week()).toBe(moment().weeks(55).week())
+  expect(dayjs().weeks()).toBe(moment().weeks())
 })