-added a test to check the error from the issue 1820

test/specs/wrapper/find.spec.js

@@ -15,6 +15,7 @@ import {
   isRunningChrome
 } from '~resources/utils'
 import { itDoNotRunIf, itSkipIf } from 'conditional-specs'
+import VueRouter from 'vue-router'
 
 describeWithShallowAndMount('find', mountingMethod => {
   it('returns a Wrapper matching tag selector passed', () => {
@@ -279,6 +280,68 @@ describeWithShallowAndMount('find', mountingMethod => {
     }
   )
 
+  it('have no better name right now, but this does not fail.........', () => {
+    const TestComponentToFind = {
+      render: h => h('div'),
+      name: 'test-component-to-find'
+    }
+    const TestComponent = {
+      template: `
+        <div>
+          <test-component-to-find/>
+          <test-component-to-find/>
+          <test-component-to-find/>
+        </div>'
+      `,
+      components: {
+        TestComponentToFind
+      },
+      name: 'test-component'
+    }
+
+    const wrapper = mountingMethod(TestComponent)
+
+    expect(
+      wrapper
+        .findAllComponents({ name: 'test-component-to-find' })
+        .at(0)
+        .exists()
+    ).toBe(true)
+  })
+
+  it('ok this test fails', async () => {
+    const TestComponentToFind = {
+      render: h => h('div'),
+      name: 'test-component-to-find'
+    }
+    const localVue = createLocalVue()
+    localVue.use(VueRouter)
+    const routes = [
+      {
+        path: '/a/b',
+        name: 'ab',
+        component: TestComponentToFind
+      }
+    ]
+    const router = new VueRouter({ routes })
+    // and this will not work with shallowMount because router view gets stubbed! How can I just test mount?
+    const wrapper = mountingMethod(
+      {
+        template: '<router-view/>'
+      },
+      {
+        localVue,
+        router
+      }
+    )
+
+    try {
+      await router.push('/a/b')
+    } catch (e) {} // this will throw NavigationDuplicated the second time, dunno how to fix it
+
+    expect(wrapper.findComponent(TestComponentToFind).exists()).toBe(true)
+  })
+
   it('returns extended functional component', () => {
     const TestFunctionalComponent = Vue.extend({
       render: h => h('div'),