fix: use Vue Router in abstract mode

Fixes testing-library#210

Author: blimmer

src/__tests__/vue-router.js

@@ -32,3 +32,9 @@ test('setting initial route', () => {
 
   expect(getByTestId('location-display')).toHaveTextContent('/about')
 })
+
+test('router state is not shared between tests', () => {
+  const {getByTestId} = render(App, {routes})
+
+  expect(getByTestId('location-display')).toHaveTextContent('/')
+})

src/render.js

@@ -39,7 +39,8 @@ function render(
     const VueRouter = requiredRouter.default || requiredRouter
     localVue.use(VueRouter)
 
-    router = new VueRouter({routes})
+    router = new VueRouter({routes, mode: 'abstract'})
+    router.push('/')
   }
 
   if (configurationCb && typeof configurationCb === 'function') {