diff --git a/components/auto-complete/__tests__/ac.test.js b/components/auto-complete/__tests__/ac.test.js
index 7b919184f0..a846726e63 100644
--- a/components/auto-complete/__tests__/ac.test.js
+++ b/components/auto-complete/__tests__/ac.test.js
@@ -17,4 +17,14 @@ describe('AutoComplete with Custom Input Element Render', () => {
     // should not filter data source defaultly
     expect(dropdownWrapper.find('MenuItem').length).toBe(3);
   });
+
+  it('child.ref should work', () => {
+    const mockRef = jest.fn();
+    mount(
+      <AutoComplete dataSource={[]}>
+        <input ref={mockRef} />
+      </AutoComplete>
+    );
+    expect(mockRef).toHaveBeenCalled();
+  });
 });
diff --git a/components/notification/__tests__/placement.test.js b/components/notification/__tests__/placement.test.js
index aeb55011fe..f533610ee2 100644
--- a/components/notification/__tests__/placement.test.js
+++ b/components/notification/__tests__/placement.test.js
@@ -1,6 +1,8 @@
 import notification from '..';
 
 describe('Notification.placement', () => {
+  afterEach(() => notification.destroy());
+
   function $$(className) {
     return document.body.querySelectorAll(className);
   }