test: add e2e tests

fix: boolean attributes client side

test/fixtures/basic/views/about.vue

@@ -0,0 +1,16 @@
+<template>
+<div>
+  <h2>About</h2>
+  <router-link to="/">Go to Home</router-link>
+</div>
+</template>
+
+<script>
+export default {
+  metaInfo() {
+    return {
+      title: 'About'
+    }
+  }
+}
+</script>

test/fixtures/basic/views/home.vue

@@ -0,0 +1,37 @@
+<template>
+<div>
+  <h2>Home</h2>
+  <router-link to="/about">Go to About</router-link>
+</div>
+</template>
+
+<script>
+export default {
+  metaInfo() {
+    return {
+      title: 'Home',
+      titleTemplate: '%s | Vue Meta Test',
+      htmlAttrs: {
+        lang: 'en',
+        allowfullscreen: undefined,
+        amp: true
+      },
+      headAttrs: {
+        test: true
+      },
+      meta: [
+        { name: 'description', content: 'Hello', vmid: 'test' }
+      ],
+      script: [
+        { vmid: 'ldjson', innerHTML: '{ "@context": "http://www.schema.org", "@type": "Organization" }', type: 'application/ld+json' },
+        { innerHTML: '{ "more": "data" }', type: 'application/ld+json' }
+      ],
+      noscript: [
+        { innerHTML: '{ "body": "yes" }', body: true, type: 'application/ld+json' }
+      ],
+      __dangerouslyDisableSanitizers: ['noscript'],
+      __dangerouslyDisableSanitizersByTagID: { ldjson: ['innerHTML'] }
+    }
+  }
+}
+</script>