fix(modal): title props support render function (#3030)

components/modal/ConfirmDialog.jsx

@@ -94,7 +94,9 @@ export default {
           <div class={`${contentPrefixCls}-body`}>
             {iconNode}
             {props.title === undefined ? null : (
-              <span class={`${contentPrefixCls}-title`}>{props.title}</span>
+              <span class={`${contentPrefixCls}-title`}>
+                {typeof props.title === 'function' ? props.title(h) : props.title}
+              </span>
             )}
             <div class={`${contentPrefixCls}-content`}>
               {typeof props.content === 'function' ? props.content(h) : props.content}

components/modal/__tests__/confirm.test.js

@@ -88,7 +88,7 @@ describe('Modal.confirm triggers callbacks correctly', () => {
     expect($$('.ant-btn')[1].disabled).toBe(true);
   });
 
-  fit('trigger onCancel once when click on cancel button', async () => {
+  it('trigger onCancel once when click on cancel button', async () => {
     const arr = ['info', 'success', 'warning', 'error'];
     for (let type of arr) {
       Modal[type]({
@@ -102,4 +102,12 @@ describe('Modal.confirm triggers callbacks correctly', () => {
       expect($$(`.ant-modal-confirm-${type}`)).toHaveLength(0);
     }
   });
+
+  it('should render title', async () => {
+    open({
+      title: h => <span>title</span>,
+    });
+    await sleep();
+    expect($$('.ant-modal-confirm-title')[0].innerHTML).toBe('<span>title</span>');
+  });
 });