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

packages/test-utils/src/matches.js

@@ -56,7 +56,12 @@ export function matches(node, selector) {
     return element && element.matches && element.matches(selector.value)
   }
 
-  const componentInstance = node[FUNCTIONAL_OPTIONS] || node.child
+  // ignore the functional component if its a RouterView
+  // Find a good explanation comment why tahts the case, please help!
+  const componentInstance =
+    node[FUNCTIONAL_OPTIONS] && node[FUNCTIONAL_OPTIONS].name === 'RouterView'
+      ? node.child
+      : node[FUNCTIONAL_OPTIONS] || node.child
 
   if (!componentInstance) {
     return false

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 +280,40 @@ describeWithShallowAndMount('find', mountingMethod => {
     }
   )
 
+  itDoNotRunIf(
+    mountingMethod.name === 'shallowMount',
+    'returns a VueWrapper using a <router-view/> component',
+    async () => {
+      const localVue = createLocalVue()
+      localVue.use(VueRouter)
+      const TestComponentToFind = {
+        render: h => h('div'),
+        name: 'test-component-to-find'
+      }
+      const routes = [
+        {
+          path: '/a/b',
+          name: 'ab',
+          component: TestComponentToFind
+        }
+      ]
+      const router = new VueRouter({ routes })
+      const wrapper = mountingMethod(
+        {
+          template: '<router-view/>'
+        },
+        {
+          localVue,
+          router
+        }
+      )
+
+      await router.push('/a/b')
+
+      expect(wrapper.findComponent(TestComponentToFind).exists()).toBe(true)
+    }
+  )
+
   it('returns extended functional component', () => {
     const TestFunctionalComponent = Vue.extend({
       render: h => h('div'),