diff --git a/components/input/__tests__/__snapshots__/index.test.js.snap b/components/input/__tests__/__snapshots__/index.test.js.snap
new file mode 100644
index 000000000..1724b6ee6
--- /dev/null
+++ b/components/input/__tests__/__snapshots__/index.test.js.snap
@@ -0,0 +1,9 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Input should support maxLength 1`] = `<input type="text" maxlength="3" class="ant-input">`;
+
+exports[`Input.Search should support suffix 1`] = `<span class="ant-input-search ant-input-affix-wrapper ant-input-search"><input type="text" class="ant-input ant-input-search"><span class="ant-input-suffix">suffix<i class="anticon anticon-search ant-input-search-icon"></i></span></span>`;
+
+exports[`TextArea should support disabled 1`] = `<textarea disabled="disabled" class="ant-input ant-input-disabled"></textarea>`;
+
+exports[`TextArea should support maxLength 1`] = `<textarea maxlength="10" class="ant-input"></textarea>`;
diff --git a/components/input/__tests__/index.test.js b/components/input/__tests__/index.test.js
new file mode 100644
index 000000000..e5a2ee95f
--- /dev/null
+++ b/components/input/__tests__/index.test.js
@@ -0,0 +1,108 @@
+import { mount } from '@vue/test-utils'
+import { asyncExpect } from '@/tests/utils'
+import Input from '..'
+import Form from '../../form'
+import focusTest from '../../../tests/shared/focusTest'
+
+const { TextArea } = Input
+
+describe('Input', () => {
+  focusTest(Input)
+
+  it('should support maxLength', async () => {
+    const wrapper = mount(Input, { attrs: { maxLength: 3 }, sync: false })
+    await asyncExpect(() => {
+      expect(wrapper.html()).toMatchSnapshot()
+    }, 0)
+  })
+})
+
+focusTest(TextArea)
+
+describe('TextArea', () => {
+  it('should auto calculate height according to content length', async () => {
+    const wrapper = mount(TextArea, { propsData: { value: '', readOnly: true, autosize: true }, sync: false })
+
+    const mockFunc = jest.spyOn(wrapper.vm, 'resizeTextarea')
+    await asyncExpect(() => {
+      wrapper.setProps({ value: '1111\n2222\n3333' })
+    })
+    await asyncExpect(() => {
+      expect(mockFunc).toHaveBeenCalledTimes(1)
+    })
+    await asyncExpect(() => {
+      wrapper.setProps({ value: '1111' })
+    })
+
+    await asyncExpect(() => {
+      expect(mockFunc).toHaveBeenCalledTimes(2)
+    }, 0)
+  })
+
+  it('should support disabled', async () => {
+    const wrapper = mount(TextArea, { propsData: { disabled: true }, sync: false })
+    await asyncExpect(() => {
+      expect(wrapper.html()).toMatchSnapshot()
+    })
+  })
+
+  it('should support maxLength', async () => {
+    const wrapper = mount(TextArea, { attrs: { maxLength: 10 }, sync: false })
+    await asyncExpect(() => {
+      expect(wrapper.html()).toMatchSnapshot()
+    })
+  })
+})
+
+describe('As Form Control', () => {
+  it('should be reset when wrapped in form.getFieldDecorator without initialValue', async () => {
+    const Demo = {
+      methods: {
+        reset () {
+          this.form.resetFields()
+        },
+      },
+
+      render () {
+        const { getFieldDecorator } = this.form
+        return (
+          <Form>
+            <Form.Item>
+              {getFieldDecorator('input')(<Input />)}
+            </Form.Item>
+            <Form.Item>
+              {getFieldDecorator('textarea')(<Input.TextArea />)}
+            </Form.Item>
+            <button onClick={this.reset}>reset</button>
+          </Form>
+        )
+      },
+    }
+    const DemoForm = Form.create()(Demo)
+    const wrapper = mount(DemoForm, { sync: false })
+    await asyncExpect(() => {
+      wrapper.find('input').element.value = '111'
+      wrapper.find('input').trigger('change')
+      wrapper.find('textarea').element.value = '222'
+      wrapper.find('textarea').trigger('change')
+    })
+    await asyncExpect(() => {
+      expect(wrapper.find('input').element.value).toBe('111')
+      expect(wrapper.find('textarea').element.value).toBe('222')
+      wrapper.find('button').trigger('click')
+    })
+    await asyncExpect(() => {
+      expect(wrapper.find('input').element.value).toBe('')
+      expect(wrapper.find('textarea').element.value).toBe('')
+    })
+  })
+})
+
+describe('Input.Search', () => {
+  it('should support suffix', async () => {
+    const wrapper = mount(Input.Search, { propsData: { suffix: 'suffix' }, sync: false })
+    await asyncExpect(() => {
+      expect(wrapper.html()).toMatchSnapshot()
+    })
+  })
+})