Merge pull request #1604 from SergioCrisostomo/2.0

add basic DatePicker test

test/unit/specs/date-picker.spec.js

@@ -0,0 +1,28 @@
+import { createVue, destroyVM } from '../util';
+
+describe('DatePicker.vue', () => {
+  let vm;
+  afterEach(() => {
+    destroyVM(vm);
+  });
+
+  it('should create a DatePicker component and open the calendar with the current month', done => {
+    vm = createVue(`
+      <Date-Picker></Date-Picker>
+    `);
+    const picker = vm.$children[0];
+    picker.showPicker();
+    vm.$nextTick(() => {
+      const calendarBody = vm.$el.querySelector('.ivu-picker-panel-body .ivu-date-picker-cells:first-of-type');
+      const calendarCells = [...calendarBody.querySelectorAll('.ivu-date-picker-cells-cell')].filter(el => {
+        const prevMonth = el.classList.contains('ivu-date-picker-cells-cell-prev-month');
+        const nextMonth = el.classList.contains('ivu-date-picker-cells-cell-next-month');
+        return !prevMonth && !nextMonth;
+      });
+      const today = new Date();
+      const daysInCurrentMonth = new Date(today.getFullYear(), today.getMonth() + 1, 0).getDate();
+      expect(daysInCurrentMonth).to.equal(calendarCells.length);
+      done();
+    });
+  });
+});