test: prevent plugin install twice

2026-06-12 16:42:26 +03:00 · 2019-06-09 20:44:42 +02:00
parent 8b7b991e63
commit 8ab63b4451
4 changed files with 24 additions and 2 deletions
@@ -63,6 +63,18 @@ describe('plugin', () => {
    expect(VueMetaServerPlugin.version).toBe('test-version')
  })

+  test('plugin isnt be installed twice', () => {
+    expect(Vue.__vuemeta_installed).toBe(true)
+
+    Vue.prototype.$meta = undefined
+    Vue.use({ ...VueMetaServerPlugin })
+
+    expect(Vue.prototype.$meta).toBeUndefined()
+
+    // reset Vue
+    Vue = loadVueMetaPlugin(true)
+  })
+
  test('prints deprecation warning once when using _hasMetaInfo', () => {
    const warn = jest.spyOn(console, 'warn').mockImplementation(() => {})