From 560a0351a7d34976c98910f3d9dd221617e539bc Mon Sep 17 00:00:00 2001
From: paradox <akaxiaok@gmail.com>
Date: Thu, 13 Sep 2018 06:07:42 +0800
Subject: [PATCH] [Select] Test if child passed to onChange handler (#12852)

* [Select] Test if child passed to onChange handler
#12739

* [Select] Test if child passed to onChange handler
#12739
---
 packages/material-ui/src/Select/Select.test.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/packages/material-ui/src/Select/Select.test.js b/packages/material-ui/src/Select/Select.test.js
index 7870def8b3ed82..2b883fcd984731 100644
--- a/packages/material-ui/src/Select/Select.test.js
+++ b/packages/material-ui/src/Select/Select.test.js
@@ -4,6 +4,7 @@ import { createShallow, getClasses, createMount } from '../test-utils';
 import MenuItem from '../MenuItem';
 import Input from '../Input';
 import Select from './Select';
+import { spy } from 'sinon';
 
 describe('<Select />', () => {
   let shallow;
@@ -64,4 +65,17 @@ describe('<Select />', () => {
     );
     assert.strictEqual(wrapper.find('input').props().value, 10);
   });
+  describe('prop: onChange', () => {
+    it('should get selected element from arguments', () => {
+      const onChangeHandler = spy();
+      const wrapper = mount(<Select onChange={onChangeHandler} {...defaultProps} value={'1'} />);
+      wrapper.find('[role="button"]').simulate('click');
+      wrapper
+        .find(MenuItem)
+        .at(1)
+        .simulate('click');
+      const selected = onChangeHandler.args[0][1];
+      assert.strictEqual(React.isValidElement(selected), true, 'should b be a element');
+    });
+  });
 });