feat: v-once

pages/directive/v-once/v-once.test.js

-const PAGE_PATH = '/pages/directive/v-once/v-once'
-
-describe('v-once', () => {
-  let page
-  beforeAll(async () => {
-    page = await program.reLaunch(PAGE_PATH)
-    await page.waitFor(500)
-  })
-  // TODO 暂不支持
-  it('change-message', async () => {
-    const btn_change = await page.$('.view-click')
-    const messageText = await page.$('.v-once-message')
-
-    // await btn_change.tap()
-    // expect(await messageText.text()).toBe('message')
-  })
-})
+const PAGE_PATH = '/pages/directive/v-once/v-once'
+
+describe('v-once', () => {
+	if (process.env.uniTestPlatformInfo.startsWith('android')) {
+		let page
+		beforeAll(async () => {
+			page = await program.reLaunch(PAGE_PATH)
+			await page.waitFor('view')
+		})
+		it('basic', async () => {
+			const vOnceTextEl = await page.$('.v-once-text')
+			let vOnceTextText = await vOnceTextEl.text()
+			expect(vOnceTextText).toBe('This will never change: hello world')
+
+			const btn = await page.$('.btn')
+			await btn.tap()
+
+			const msg = await page.data('msg')
+			expect(msg).toBe('msg changed')
+
+			vOnceTextText = await vOnceTextEl.text()
+			expect(vOnceTextText).toBe('This will never change: hello world')
+		})
+	} else {
+		// TODO: web 端暂不支持
+		it('web', async () => {
+			expect(1).toBe(1)
+		})
+	}
+})
\ No newline at end of file

pages/directive/v-once/v-once.uvue

 <template>
   <view class="page">
     <view class="split-title">v-once</view>
-    <view>
-      <text class="v-once">This will never change:</text>
-      <text class="v-once-message" v-once>{{message}}</text>
-    </view>
-    <view class="view-click" @click="changeMessage">Change message</view>
+    <text class="uni-common-mt v-once-text" v-once>This will never change: {{ msg }}</text>
+    <text class="uni-common-mt">msg: {{msg}}</text>
+    <button class="uni-common-mt btn" type="primary" @click="changeMessage">change message</button>
   </view>
 </template>
 
-<script>
-  export default {
-    data() {
-      return {
-        message: 'message'
-      }
-    },
-    methods: {
-      changeMessage() {
-        this.message = Date.now().toString()
-      }
+<script lang="uts">
+export default {
+  data() {
+    return {
+      msg: 'hello world'
+    }
+  },
+  methods: {
+    changeMessage() {
+      this.msg = 'msg changed'
     }
   }
+}
 </script>
-
-<style>
-</style>

pages/index.uvue

@@ -173,7 +173,7 @@
               {
                 name: 'v-once',
                 url: 'v-once',
-                enable: false,
+                enable: true,
               },
               {
                 name: 'v-memo',