Merge branch 'master' into finnish-locale

CHANGELOG.md

@@ -1,3 +1,10 @@
+## [1.7.7](https://github.com/iamkun/dayjs/compare/v1.7.6...v1.7.7) (2018-09-26)
+
+
+### Bug Fixes
+
+* **DST:** fix daylight saving time DST bug && add test ([#354](https://github.com/iamkun/dayjs/issues/354)) ([6fca6d5](https://github.com/iamkun/dayjs/commit/6fca6d5))
+
 ## [1.7.6](https://github.com/iamkun/dayjs/compare/v1.7.5...v1.7.6) (2018-09-25)
 
 

src/index.js

@@ -238,12 +238,23 @@ class Dayjs {
       const date = this.set(C.DATE, 1).set(u, n + number)
       return date.set(C.DATE, Math.min(this.$D, date.daysInMonth()))
     }
+    const instanceFactorySet = (n) => {
+      const date = new Date(this.$d)
+      date.setDate(date.getDate() + (n * number))
+      return wrapper(date, this)
+    }
     if (unit === C.M) {
       return instanceFactory(C.M, this.$M)
     }
     if (unit === C.Y) {
       return instanceFactory(C.Y, this.$y)
     }
+    if (unit === C.D) {
+      return instanceFactorySet(1)
+    }
+    if (unit === C.W) {
+      return instanceFactorySet(7)
+    }
     let step
     switch (unit) {
       case C.MIN:
@@ -252,12 +263,6 @@ class Dayjs {
       case C.H:
         step = C.MILLISECONDS_A_HOUR
         break
-      case C.D:
-        step = C.MILLISECONDS_A_DAY
-        break
-      case C.W:
-        step = C.MILLISECONDS_A_WEEK
-        break
       case C.S:
         step = C.MILLISECONDS_A_SECOND
         break

src/locale/pl.js

@@ -0,0 +1,27 @@
+import dayjs from 'dayjs'
+
+const locale = {
+  name: 'pl',
+  weekdays: 'Niedziela_Poniedziałek_Wtorek_Środa_Czwartek_Piątek_Sobota'.split('_'),
+  months: 'Styczeń_Luty_Marzec_Kwiecień_Maj_Czerwiec_Lipiec_Sierpień_Wrzesień_Październik_Listopad_Grudzień'.split('_'),
+  ordinal: n => `${n}.`,
+  relativeTime: {
+    future: 'za %s',
+    past: 'po %s',
+    s: 'kilka Sekund',
+    m: 'Minuta',
+    mm: '%d Minut',
+    h: 'Godzina',
+    hh: '%d Godzin',
+    d: 'Tydzień',
+    dd: '%d Tygodni',
+    M: 'Miesiąc',
+    MM: '%d Miesięcy',
+    y: 'Rok',
+    yy: '%d Lat'
+  }
+}
+
+dayjs.locale(locale, null, true)
+
+export default locale

test/manipulate.test.js

@@ -52,3 +52,13 @@ it('Add Time days', () => {
 it('Subtract Time days', () => {
   expect(dayjs().subtract(1, 'days').valueOf()).toBe(moment().subtract(1, 'days').valueOf())
 })
+
+it('Add Time days (DST)', () => {
+  // change timezone before running test
+  // New Zealand (-720)
+  expect(dayjs('2018-04-01').add(1, 'd').format()).toBe(moment('2018-04-01').add(1, 'd').format())
+  expect(dayjs('2018-03-28').add(1, 'w').format()).toBe(moment('2018-03-28').add(1, 'w').format())
+  // London (-60)
+  expect(dayjs('2018-10-28').add(1, 'd').format()).toBe(moment('2018-10-28').add(1, 'd').format())
+  expect(dayjs('2018-10-26').add(1, 'w').format()).toBe(moment('2018-10-26').add(1, 'w').format())
+})