First of all, thank you for your contribution! :-)
Please makes sure that these checkboxes are checked before submitting your PR, thank you!
* [x] Make sure that you propose PR to right branch: bugfix for `master`, feature for branch `feature`.
* [x] Make sure that you follow antd's [code convention](https://github.com/ant-design/ant-design/wiki/Code-convention-for-antd).
* [x] Run `npm run lint` and fix those errors before submitting in order to keep consistent code style.
* [x] Rebase before creating a PR to keep commit history clear.
* [x] Add some descriptions and refer relative issues for you PR.
Extra checklist:
**if** *isBugFix* **:**
* [x] Make sure that you add at least one unit test for the bug which you had fixed.
**elif** *isNewFeature* **:**
* [ ] Update API docs for the component.
* [ ] Update/Add demo to demonstrate new feature.
* [ ] Update TypeScript definition for the component.
* [ ] Add unit tests for the feature.
* fix: get label should use childrenKeyName for arrayTreeFilter when use customer fieldNames otherwise It can not get correct label array
* feat: add fieldNames test case in Cascader
* fix: cli fail
* fix: cil fail again
* Add test for select
* Add focus() and blur() for AutoComplete
* Add focus() and blur() to Cascader
* Add focus test for input
* Add focus() and blur() for Checkbox
* Add focus() and blur() for Radio
* Add focus() and blur() for Switch
* Add blur() for TimePicker
* Add focus() and blur() to TreeSelect