chore: warn when mounting different apps on the same host element (#5573)

2022-05-13 09:09:18 +08:00
parent f2c48f5352
commit 0c07f12541
2 changed files with 13 additions and 0 deletions
--- a/packages/runtime-core/tests/apiCreateApp.spec.ts
+++ b/packages/runtime-core/tests/apiCreateApp.spec.ts
@@ -30,6 +30,11 @@ describe('api: createApp', () => {
    const root1 = nodeOps.createElement('div')
    createApp(Comp).mount(root1)
    expect(serializeInner(root1)).toBe(`0`)
+    //#5571 mount multiple apps to the same host element
+    createApp(Comp).mount(root1)
+    expect(
+      `There is already an app instance mounted on the host container`
+    ).toHaveBeenWarned()

    // mount with props
    const root2 = nodeOps.createElement('div')