Bug 1178484 - Part 5: Test for metachange event when Open Graph property is loaded. r=kanru

dom/browser-element/mochitest/browserElement_Metachange.js

@@ -24,6 +24,10 @@ function createMetaWithLang(name, content, lang) {
   return '<meta name="' + name + '" content="' + content + '" lang="' + lang + '">';
 }
 
+function createMetaWithProperty(property, content) {
+  return '<meta property="' + property + '" content="' + content + '">';
+}
+
 function runTest() {
   var iframe1 = document.createElement('iframe');
   iframe1.setAttribute('mozbrowser', 'true');
@@ -131,6 +135,26 @@ function runTest() {
       is(e.detail.content, 'sjs', 'content matches');
       is(e.detail.lang, 'dk', 'language matches');
 
+      // Test Open Graph property
+      iframe1.src = createHtml(createMetaWithProperty('og:description', 'Fascinating article'));
+
+      // We should not get event if property doesn't start with 'og:'
+      iframe3.src = createHtml(createMetaWithProperty('go:description', 'Fascinating article'));
+    }
+    else if (numMetaChanges == 11) {
+      is(e.detail.name, 'og:description', 'property name matches');
+      is(e.detail.content, 'Fascinating article', 'content matches');
+
+      // Sometimes 'name' is used instead of 'property'. Verify that works.
+      iframe1.src = createHtml(createMeta('og:title', 'One weird trick!'));
+
+      // We should not get event if property doesn't start with 'og:'
+      iframe3.src = createHtml(createMeta('go:title', 'One weird trick!'));
+    }
+    else if (numMetaChanges == 12) {
+      is(e.detail.name, 'og:title', 'property name matches');
+      is(e.detail.content, 'One weird trick!', 'content matches');
+
       // Test the language
       SimpleTest.finish();
     } else {