1 files changed, 64 insertions, 0 deletions
diff --git a/dom/browser-element/mochitest/browserElement_getWebManifest.js b/dom/browser-element/mochitest/browserElement_getWebManifest.js
new file mode 100644
index 000000000..c2b8f96f3
--- /dev/null
+++ b/dom/browser-element/mochitest/browserElement_getWebManifest.js
@@ -0,0 +1,64 @@
+/* Any copyright is dedicated to the public domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+/*globals async, ok, is, SimpleTest, browserElementTestHelpers*/
+
+// Bug 1169633 - getWebManifest tests
+'use strict';
+SimpleTest.waitForExplicitFinish();
+browserElementTestHelpers.setEnabledPref(true);
+
+// request to load a manifest from a page that doesn't have a manifest.
+// The expected result to be null.
+var test1 = async(function* () {
+  var manifest = yield requestManifest('file_empty.html');
+  is(manifest, null, 'it should be null.');
+});
+
+// request to load a manifest from a page that has a manifest.
+// The expected manifest to have a property name whose value is 'pass'.
+var test2 = async(function* () {
+  var manifest = yield requestManifest('file_web_manifest.html');
+  is(manifest && manifest.name, 'pass', 'it should return a manifest with name pass.');
+});
+
+// Cause an exception by attempting to fetch a file URL,
+// expect onerror to be called.
+var test3 = async(function* () {
+  var gotError = false;
+  try {
+    yield requestManifest('file_illegal_web_manifest.html');
+  } catch (err) {
+    gotError = true;
+  }
+  ok(gotError, 'onerror was called on the DOMRequest.');
+});
+
+// Run the tests
+addEventListener('testready', () => {
+  Promise
+    .all([test1(), test2(), test3()])
+    .then(SimpleTest.finish);
+});
+
+function requestManifest(url) {
+  var iframe = document.createElement('iframe');
+  iframe.setAttribute('mozbrowser', 'true');
+  iframe.src = url;
+  document.body.appendChild(iframe);
+  return new Promise((resolve, reject) => {
+    iframe.addEventListener('mozbrowserloadend', function loadend() {
+      iframe.removeEventListener('mozbrowserloadend', loadend);
+      SimpleTest.executeSoon(() => {
+        var req = iframe.getWebManifest();
+        req.onsuccess = () => {
+          document.body.removeChild(iframe);
+          resolve(req.result);
+        };
+        req.onerror = () => {
+          document.body.removeChild(iframe);
+          reject(new Error(req.error));
+        };
+      });
+    });
+  });
+}