diff --git a/components/calendar/__tests__/index.test.js b/components/calendar/__tests__/index.test.js
new file mode 100644
index 000000000..a931b3522
--- /dev/null
+++ b/components/calendar/__tests__/index.test.js
@@ -0,0 +1,146 @@
+import Moment from 'moment'
+import { mount } from '@vue/test-utils'
+import Vue from 'vue'
+import Calendar from '..'
+
+function $$ (className) {
+  return document.body.querySelectorAll(className)
+}
+describe('Calendar', () => {
+  it('Calendar should be selectable', () => {
+    const onSelect = jest.fn()
+    const wrapper = mount(
+      {
+        render () {
+          return <Calendar onSelect={onSelect} />
+        },
+      },
+      { sync: false }
+    )
+    wrapper.findAll('.ant-fullcalendar-cell').at(0).trigger('click')
+    expect(onSelect).toBeCalledWith(expect.anything())
+    const value = onSelect.mock.calls[0][0]
+    expect(Moment.isMoment(value)).toBe(true)
+  })
+
+  it('only Valid range should be selectable', () => {
+    const onSelect = jest.fn()
+    const validRange = [Moment('2018-02-02'), Moment('2018-02-18')]
+    const wrapper = mount(
+      {
+        render () {
+          return <Calendar onSelect={onSelect} validRange={validRange} defaultValue={Moment('2018-02-02')} />
+        },
+      },
+      { sync: false }
+    )
+    wrapper.findAll('[title="February 1, 2018"]').at(0).trigger('click')
+    wrapper.findAll('[title="February 2, 2018"]').at(0).trigger('click')
+    expect(onSelect.mock.calls.length).toBe(1)
+  })
+
+  it('dates other than in valid range should be disabled', () => {
+    const onSelect = jest.fn()
+    const validRange = [Moment('2018-02-02'), Moment('2018-02-18')]
+    const wrapper = mount(
+      {
+        render () {
+          return <Calendar onSelect={onSelect} validRange={validRange} defaultValue={Moment('2018-02-02')} />
+        },
+      }
+    )
+    wrapper.findAll('[title="February 20, 2018"]').at(0).trigger('click')
+    expect(wrapper.find('[title="February 20, 2018"]').classes()).toContain('ant-fullcalendar-disabled-cell')
+    expect(onSelect.mock.calls.length).toBe(0)
+  })
+
+  it('months other than in valid range should be disabled', () => {
+    const onSelect = jest.fn()
+    const validRange = [Moment('2018-02-02'), Moment('2018-05-18')]
+    const wrapper = mount(
+      {
+        render () {
+          return <Calendar onSelect={onSelect} validRange={validRange} defaultValue={Moment('2018-02-02')} mode='year' />
+        },
+      },
+      { sync: false }
+    )
+    expect(wrapper.findAll('[title="Jan"]').at(0).classes()).toContain('ant-fullcalendar-month-panel-cell-disabled')
+    expect(wrapper.findAll('[title="Feb"]').at(0).classes()).not.toContain('ant-fullcalendar-month-panel-cell-disabled')
+    expect(wrapper.findAll('[title="Jun"]').at(0).classes()).toContain('ant-fullcalendar-month-panel-cell-disabled')
+    wrapper.findAll('[title="Jan"]').at(0).trigger('click')
+    wrapper.findAll('[title="Mar"]').at(0).trigger('click')
+    expect(onSelect.mock.calls.length).toBe(1)
+  })
+
+  it('months other than in valid range should not be shown in header', (done) => {
+    document.body.innerHTML = ''
+    const validRange = [Moment('2017-02-02'), Moment('2018-05-18')]
+    const wrapper = mount(
+      {
+        render () {
+          return <Calendar validRange={validRange} />
+        },
+      },
+      { sync: false }
+    )
+    wrapper.find('.ant-fullcalendar-year-select').trigger('click')
+    Vue.nextTick(() => {
+      $$('.ant-select-dropdown-menu-item')[0].click()
+      wrapper.find('.ant-fullcalendar-month-select').trigger('click')
+      Vue.nextTick(() => {
+        expect($$('.ant-select-dropdown-menu-item').length).toBe(13)
+        done()
+      })
+    })
+  })
+
+  it('getDateRange should returns a disabledDate function', () => {
+    const validRange = [Moment('2018-02-02'), Moment('2018-05-18')]
+    const wrapper = mount(
+      Calendar, {
+        propsData: {
+          validRange,
+          defaultValue: Moment('2018-02-02'),
+        },
+      }
+    )
+    const instance = wrapper.vm
+    const disabledDate = instance.getDateRange(validRange)
+    expect(disabledDate(Moment('2018-06-02'))).toBe(true)
+    expect(disabledDate(Moment('2018-04-02'))).toBe(false)
+  })
+
+  it('Calendar should change mode by prop', (done) => {
+    const monthMode = 'month'
+    const yearMode = 'year'
+    const wrapper = mount(Calendar, { sync: false })
+    expect(wrapper.vm.sMode).toEqual(monthMode)
+    wrapper.setProps({ mode: 'year' })
+    Vue.nextTick(() => {
+      expect(wrapper.vm.sMode).toEqual(yearMode)
+      done()
+    })
+  })
+
+  it('Calendar should switch mode', () => {
+    const monthMode = 'month'
+    const yearMode = 'year'
+    const onPanelChangeStub = jest.fn()
+    const wrapper = mount(
+      Calendar, {
+        propsData: {
+          mode: yearMode,
+        },
+        listeners: {
+          panelChange: onPanelChangeStub,
+        },
+        sync: false,
+      }
+    )
+    expect(wrapper.vm.sMode).toEqual(yearMode)
+    wrapper.vm.setType('date')
+    expect(wrapper.vm.sMode).toEqual(monthMode)
+    expect(onPanelChangeStub).toHaveBeenCalledTimes(1)
+  })
+})