support Fragment

example/index.js

@@ -24,7 +24,7 @@ const App = defineComponent(() => {
   };
 
   return () => (
-    <div>
+    <>
       Foo {count.value}
       <SuperButton
         buttonText="VueComponent"
@@ -33,7 +33,7 @@ const App = defineComponent(() => {
           click: inc,
         }}
       />
-    </div>
+    </>
   );
 });
 

package.json

@@ -26,7 +26,6 @@
     "@babel/helper-module-imports": "^7.8.3",
     "@babel/plugin-syntax-jsx": "^7.8.3",
     "@babel/types": "^7.9.6",
-    "@vue/babel-preset-jsx": "^1.1.2",
     "html-tags": "^3.1.0",
     "svg-tags": "^1.0.0"
   },

src/babel-sugar-fragment.js

@@ -0,0 +1,28 @@
+const syntaxJsx = require('@babel/plugin-syntax-jsx').default;
+const t = require('@babel/types');
+const helperModuleImports = require('@babel/helper-module-imports');
+
+const transformFragment = (path, { name }) => {
+  const children = path.get('children') || [];
+  return t.jsxElement(
+    t.jsxOpeningElement(t.jsxIdentifier(name), []),
+    t.jsxClosingElement(t.jsxIdentifier(name)),
+    children.map(({ node }) => node),
+    false,
+  );
+};
+
+module.exports = () => ({
+  name: 'babel-sugar-fragment',
+  inherits: syntaxJsx,
+  visitor: {
+    JSXFragment: {
+      enter(path, state) {
+        if (!state.vueFragment) {
+          state.vueFragment = helperModuleImports.addNamed(path, 'Fragment', 'vue');
+        }
+        path.replaceWith(transformFragment(path, state.vueFragment));
+      },
+    },
+  },
+});

src/index.js

@@ -1,7 +1,9 @@
 const babelPluginTransformVueJsx = require('./babel-plugin-transform-vue-jsx');
+const babelSugarFragment = require('./babel-sugar-fragment');
 
 module.exports = () => ({
   plugins: [
     babelPluginTransformVueJsx,
+    babelSugarFragment,
   ],
 });

test/index.test.js

@@ -1,5 +1,14 @@
 import { shallowMount } from '@vue/test-utils';
 
+test('should render with render function', () => {
+  const wrapper = shallowMount({
+    render() {
+      return <div>123</div>;
+    },
+  });
+  expect(wrapper.text()).toBe('123');
+});
+
 test('should render with setup', () => {
   const wrapper = shallowMount({
     setup() {
@@ -44,17 +53,26 @@ test('should not fallthrough with inheritAttrs: false', () => {
   expect(wrapper.text()).toBe('1');
 });
 
+test('Fragment', () => {
+  const Child = () => <div>123</div>;
 
-test('should render', () => {
-  const App = {
-    render() {
-      return <div>1234</div>;
+  Child.inheritAttrs = false;
+
+  const wrapper = shallowMount({
+    setup() {
+      return () => (
+        <>
+          <Child />
+          <div>456</div>
+        </>
+      );
     },
-  };
-  const wrapper = shallowMount(App);
-  expect(wrapper.html()).toBe('<div>1234</div>');
+  });
+
+  expect(wrapper.html()).toBe('<div>123</div><div>456</div>');
 });
 
+
 test('xlink:href', () => {
   const wrapper = shallowMount({
     setup() {
@@ -119,6 +137,27 @@ test('domProps input[value]', () => {
   expect(wrapper.html()).toBe('<input type="text">');
 });
 
+test('domProps input[checked]', () => {
+  const val = 'foo';
+  const wrapper = shallowMount({
+    setup() {
+      return () => <input checked={val} />;
+    },
+  });
+
+  expect(wrapper.componentVM);
+});
+
+test('domProps option[selected]', () => {
+  const val = 'foo';
+  const wrapper = shallowMount({
+    render() {
+      return <option selected={val} />;
+    },
+  });
+  expect(wrapper);
+});
+
 test('Spread (single object expression)', () => {
   const props = {
     innerHTML: 123,
@@ -132,7 +171,7 @@ test('Spread (single object expression)', () => {
   expect(wrapper.html()).toBe('<div other="1">123</div>');
 });
 
-test('Spread (mixed)', () => {
+test('Spread (mixed)', async () => {
   const calls = [];
   const data = {
     id: 'hehe',
@@ -143,7 +182,7 @@ test('Spread (mixed)', () => {
     class: ['a', 'b'],
   };
 
-  shallowMount({
+  const wrapper = shallowMount({
     setup() {
       return () => (
         <div
@@ -151,9 +190,17 @@ test('Spread (mixed)', () => {
           {...data}
           class={{ c: true }}
           onClick={() => calls.push(4)}
-          hook-insert={() => calls.push(2)}
         />
       );
     },
   });
+
+  expect(wrapper.attributes('id')).toBe('hehe');
+  expect(wrapper.attributes('href')).toBe('huhu');
+  expect(wrapper.text()).toBe('2');
+  expect(wrapper.classes()).toEqual(expect.arrayContaining(['a', 'b', 'c']));
+
+  await wrapper.trigger('click');
+
+  expect(calls).toEqual(expect.arrayContaining([3, 4]));
 });

test/setup.js

@@ -0,0 +1 @@
+import 'regenerator-runtime/runtime';