Fix Default SimpleFormIterator Push Value

packages/ra-ui-materialui/src/form/SimpleFormIterator.js

@@ -105,7 +105,7 @@ export class SimpleFormIterator extends Component {
     addField = () => {
         const { fields } = this.props;
         this.ids.push(this.nextId++);
-        fields.push({});
+        fields.push(undefined);
     };
 
     render() {

packages/ra-ui-materialui/src/form/SimpleFormIterator.spec.js

@@ -0,0 +1,206 @@
+import { cleanup, fireEvent, wait, getByText } from '@testing-library/react';
+import React from 'react';
+import { renderWithRedux } from 'ra-core';
+
+import { SimpleFormIterator } from './SimpleFormIterator';
+import TextInput from '../input/TextInput';
+import { ArrayInput } from '../input';
+import SimpleForm from './SimpleForm';
+
+describe('<SimpleFormIterator />', () => {
+    afterEach(cleanup);
+
+    it('should display an add item button at least', () => {
+        const { getByText } = renderWithRedux(
+            <SimpleForm>
+                <ArrayInput source="emails">
+                    <SimpleFormIterator translate={x => x}>
+                        <TextInput source="email" />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            </SimpleForm>
+        );
+
+        expect(getByText('ra.action.add')).toBeDefined();
+    });
+
+    it('should not display add button if disableAdd is truthy', () => {
+        const { queryAllByText } = renderWithRedux(
+            <SimpleForm>
+                <ArrayInput source="emails">
+                    <SimpleFormIterator translate={x => x} disableAdd>
+                        <TextInput source="email" />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            </SimpleForm>
+        );
+
+        expect(queryAllByText('ra.action.add').length).toBe(0);
+    });
+
+    it('should not display remove button if disableRemove is truthy', () => {
+        const { queryAllByText } = renderWithRedux(
+            <SimpleForm record={{ emails: [{ email: '' }, { email: '' }] }}>
+                <ArrayInput source="emails">
+                    <SimpleFormIterator translate={x => x} disableRemove>
+                        <TextInput source="email" />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            </SimpleForm>
+        );
+
+        expect(queryAllByText('ra.action.remove').length).toBe(0);
+    });
+
+    it('should add children row on add button click', async () => {
+        const {
+            getByText,
+            queryAllByLabelText,
+            queryAllByText,
+        } = renderWithRedux(
+            <SimpleForm>
+                <ArrayInput source="emails">
+                    <SimpleFormIterator translate={x => x}>
+                        <TextInput source="email" />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            </SimpleForm>
+        );
+
+        const addItemElement = getByText('ra.action.add').closest('button');
+
+        fireEvent.click(addItemElement);
+        await wait(() => {
+            const inputElements = queryAllByLabelText(
+                'resources.undefined.fields.email'
+            );
+
+            expect(inputElements.length).toBe(1);
+        });
+
+        fireEvent.click(addItemElement);
+        await wait(() => {
+            const inputElements = queryAllByLabelText(
+                'resources.undefined.fields.email'
+            );
+
+            expect(inputElements.length).toBe(2);
+        });
+
+        const inputElements = queryAllByLabelText(
+            'resources.undefined.fields.email'
+        );
+
+        expect(
+            inputElements.map(inputElement => ({ email: inputElement.value }))
+        ).toEqual([{ email: '' }, { email: '' }]);
+
+        expect(queryAllByText('ra.action.remove').length).toBe(2);
+    });
+
+    it('should add correct children on add button click without source', async () => {
+        const {
+            getByText,
+            queryAllByLabelText,
+            queryAllByText,
+        } = renderWithRedux(
+            <SimpleForm>
+                <ArrayInput source="emails">
+                    <SimpleFormIterator translate={x => x}>
+                        <TextInput label="CustomLabel" />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            </SimpleForm>
+        );
+
+        const addItemElement = getByText('ra.action.add').closest('button');
+
+        fireEvent.click(addItemElement);
+        await wait(() => {
+            const inputElements = queryAllByLabelText('CustomLabel');
+
+            expect(inputElements.length).toBe(1);
+        });
+
+        const inputElements = queryAllByLabelText('CustomLabel');
+
+        expect(inputElements.map(inputElement => inputElement.value)).toEqual([
+            '',
+        ]);
+
+        expect(queryAllByText('ra.action.remove').length).toBe(1);
+    });
+
+    it('should add correct children with default value on add button click without source', async () => {
+        const {
+            getByText,
+            queryAllByLabelText,
+            queryAllByText,
+        } = renderWithRedux(
+            <SimpleForm>
+                <ArrayInput source="emails">
+                    <SimpleFormIterator translate={x => x}>
+                        <TextInput label="CustomLabel" defaultValue={5} />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            </SimpleForm>
+        );
+
+        const addItemElement = getByText('ra.action.add').closest('button');
+
+        fireEvent.click(addItemElement);
+        await wait(() => {
+            const inputElements = queryAllByLabelText('CustomLabel');
+
+            expect(inputElements.length).toBe(1);
+        });
+
+        const inputElements = queryAllByLabelText('CustomLabel');
+
+        expect(inputElements.map(inputElement => inputElement.value)).toEqual([
+            '5',
+        ]);
+
+        expect(queryAllByText('ra.action.remove').length).toBe(1);
+    });
+
+    it('should remove children row on remove button click', async () => {
+        const emails = [{ email: '[email protected]' }, { email: '[email protected]' }];
+
+        const { queryAllByLabelText } = renderWithRedux(
+            <SimpleForm record={{ emails }}>
+                <ArrayInput source="emails">
+                    <SimpleFormIterator translate={x => x}>
+                        <TextInput source="email" />
+                    </SimpleFormIterator>
+                </ArrayInput>
+            </SimpleForm>
+        );
+
+        const inputElements = queryAllByLabelText(
+            'resources.undefined.fields.email'
+        );
+
+        expect(
+            inputElements.map(inputElement => ({ email: inputElement.value }))
+        ).toEqual(emails);
+
+        const removeFirstButton = getByText(
+            inputElements[0].closest('li'),
+            'ra.action.remove'
+        ).closest('button');
+
+        fireEvent.click(removeFirstButton);
+        await wait(() => {
+            const inputElements = queryAllByLabelText(
+                'resources.undefined.fields.email'
+            );
+
+            expect(
+                inputElements.map(inputElement => ({
+                    email: inputElement.value,
+                }))
+            ).toEqual([{ email: '[email protected]' }]);
+        });
+    });
+});