diff --git a/tests/unit/App.spec.js b/tests/unit/App.spec.js
index ecb8691f..05925458 100644
--- a/tests/unit/App.spec.js
+++ b/tests/unit/App.spec.js
@@ -1,11 +1,31 @@
-import Vue from 'vue'
+import { shallowMount, createLocalVue } from '@vue/test-utils'
+import VueRouter from 'vue-router'
 import BootstrapVue from 'bootstrap-vue'
 import App from '@/App'
 
-Vue.use(BootstrapVue)
+const localVue = createLocalVue()
+localVue.use(VueRouter)
+const router = new VueRouter()
+
+
+localVue.use(BootstrapVue)
 
 describe('App.vue', () => {
   it('has a name', () => {
     expect(App.name).toMatch('app')
   })
+  it('is Vue instance', () => {
+    const wrapper = shallowMount(App, {
+      localVue,
+      router
+    })
+    expect(wrapper.isVueInstance()).toBe(true)
+  })
+  it('is App', () => {
+    const wrapper = shallowMount(App, {
+      localVue,
+      router
+    })
+    expect(wrapper.is(App)).toBe(true)
+  })
 })
diff --git a/tests/unit/DefaultContainer.spec.js b/tests/unit/DefaultContainer.spec.js
index 4b0382cf..5ebbcc1e 100644
--- a/tests/unit/DefaultContainer.spec.js
+++ b/tests/unit/DefaultContainer.spec.js
@@ -1,8 +1,13 @@
-import Vue from 'vue'
 import BootstrapVue from 'bootstrap-vue'
+import { shallowMount, createLocalVue } from '@vue/test-utils'
+import VueRouter from 'vue-router'
 import DefaultContainer from '@/containers/DefaultContainer'
 
-Vue.use(BootstrapVue)
+const localVue = createLocalVue()
+localVue.use(VueRouter)
+const router = new VueRouter()
+
+localVue.use(BootstrapVue)
 
 describe('DefaultContainer.vue', () => {
   it('has a name', () => {
@@ -16,4 +21,11 @@ describe('DefaultContainer.vue', () => {
     const defaultData = DefaultContainer.data()
     expect(typeof defaultData.nav).toMatch('object')
   })
+  it('is Vue instance', () => {
+    const wrapper = shallowMount(DefaultContainer, {
+      localVue,
+      router
+    })
+    expect(wrapper.isVueInstance()).toBe(true)
+  })
 })
diff --git a/tests/unit/User.spec.js b/tests/unit/User.spec.js
index 5253c70a..6261540f 100644
--- a/tests/unit/User.spec.js
+++ b/tests/unit/User.spec.js
@@ -1,14 +1,12 @@
-import Vue from 'vue'
 import { shallowMount, mount, createLocalVue } from '@vue/test-utils'
 import VueRouter from 'vue-router'
+import BootstrapVue from 'bootstrap-vue'
+import User from '@/views/Users/User'
 
 const localVue = createLocalVue()
 localVue.use(VueRouter)
 const router = new VueRouter()
 
-import BootstrapVue from 'bootstrap-vue'
-import User from '@/views/Users/User'
-
 localVue.use(BootstrapVue)
 
 describe('User.vue', () => {