test: 100% coverage

Author: zombieJ

src/RangePicker.tsx

@@ -269,7 +269,7 @@ function InternalRangePicker<DateType>(
   const lastOpenIdRef = React.useRef<number>();
 
   const onStartOpenChange = (open: boolean) => {
-    if (!open && innerValue && innerValue[0]) {
+    if (!open && selectedValues && selectedValues[0]) {
       lastOpenIdRef.current = window.setTimeout(() => {
         if (endPickerRef.current) {
           endPickerRef.current!.focus();

tests/range.spec.tsx

@@ -1,5 +1,6 @@
 import React from 'react';
 import MockDate from 'mockdate';
+import { act } from 'react-dom/test-utils';
 import KeyCode from 'rc-util/lib/KeyCode';
 import { spyElementPrototypes } from 'rc-util/lib/test/domHook';
 import { Moment } from 'moment';
@@ -534,4 +535,31 @@ describe('Range', () => {
 
     expect(onChange).not.toHaveBeenCalled();
   });
+
+  it('should open last when first selected', () => {
+    jest.useFakeTimers();
+    const onOpenChange = jest.fn();
+    const wrapper = mount(<MomentRangePicker onOpenChange={onOpenChange} />);
+    expect(wrapper.find('PickerPanel')).toHaveLength(0);
+
+    wrapper.openPicker();
+    wrapper.selectCell(11);
+    expect(wrapper.find('PickerPanel')).toHaveLength(1);
+
+    // Should open second one
+    wrapper.closePicker();
+    expect(onOpenChange).toHaveBeenCalled();
+
+    act(() => {
+      jest.runAllTimers();
+    });
+    act(() => {
+      wrapper.update();
+    });
+    expect(wrapper.find('PickerPanel')).toHaveLength(2);
+
+    wrapper.unmount();
+
+    jest.useRealTimers();
+  });
 });