test getValue

src/Form.jsx

@@ -41,6 +41,7 @@ export default class Form extends Component {
             });
             return result;
         }
+        invariant(this.components[name], `component with id: ${name} is not exist in form.`);
         return this.components[name].state.value;
     }
 

test/getValue.test.js

@@ -0,0 +1,48 @@
+import React from 'react';
+import { mount } from 'enzyme';
+import { Input } from 'antd';
+import FormItem from '../src/FormItem';
+import Form from '../src/Form';
+
+describe('getValue from form', () => {
+    it('getValue by name success', () => {
+        const wrapper = mount(
+            <Form>
+                <FormItem id="test" value="test" >
+                    <Input />
+                </FormItem>
+            </Form>);
+        const form = wrapper.instance();
+        expect(form.getValue('test')).toBe('test');
+    });
+
+    it('getValue by all', () => {
+        const wrapper = mount(
+            <Form>
+                <FormItem id="test" value="test" >
+                    <Input />
+                </FormItem>
+                <FormItem id="test1" value="test1" >
+                    <Input />
+                </FormItem>
+            </Form>);
+        const form = wrapper.instance();
+        expect(form.getValue()).toEqual({
+            test: 'test',
+            test1: 'test1',
+        });
+    });
+
+    it('check id when getValue', () => {
+        expect(() => {
+            const wrapper = mount(
+                <Form>
+                    <FormItem id="test">
+                        <Input />
+                    </FormItem>
+                </Form>);
+            const form = wrapper.instance();
+            form.getValue('test1');
+        }).toThrow(/component with id: test1 is not exist in form./);
+    });
+});