test: add tests

Author: edison1105

packages/server-renderer/__tests__/ssrSlot.spec.ts

@@ -132,6 +132,19 @@ describe('ssr: slot', () => {
       ),
     ).toBe(`<!---->`)
 
+    expect(
+      await renderToString(
+        createApp({
+          components: {
+            one: {
+              template: `<transition><slot/></transition>`,
+            },
+          },
+          template: `<one><slot/></one>`,
+        }),
+      ),
+    ).toBe(`<!---->`)
+
     expect(
       await renderToString(
         createApp({
@@ -140,6 +153,19 @@ describe('ssr: slot', () => {
       ),
     ).toBe(`<template><!----></template>`)
 
+    expect(
+      await renderToString(
+        createApp({
+          components: {
+            one: {
+              template: `<transition appear><slot/></transition>`,
+            },
+          },
+          template: `<one><slot/></one>`,
+        }),
+      ),
+    ).toBe(`<template><!----></template>`)
+
     expect(
       await renderToString(
         createApp({