1 files changed, 72 insertions, 0 deletions
diff --git a/toolkit/content/tests/browser/browser_isSynthetic.js b/toolkit/content/tests/browser/browser_isSynthetic.js
new file mode 100644
index 0000000000..15a341461a
--- /dev/null
+++ b/toolkit/content/tests/browser/browser_isSynthetic.js
@@ -0,0 +1,72 @@
+function LocationChangeListener(browser) {
+  this.browser = browser;
+  browser.addProgressListener(this);
+}
+
+LocationChangeListener.prototype = {
+  wasSynthetic: false,
+  browser: null,
+
+  destroy: function() {
+    this.browser.removeProgressListener(this);
+  },
+
+  onLocationChange: function(webProgress, request, location, flags) {
+    this.wasSynthetic = this.browser.isSyntheticDocument;
+  },
+
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
+                                         Ci.nsISupportsWeakReference])
+}
+
+const FILES = gTestPath.replace("browser_isSynthetic.js", "")
+                       .replace("chrome://mochitests/content/", "http://example.com/");
+
+function waitForPageShow(browser) {
+  return ContentTask.spawn(browser, null, function*() {
+    Cu.import("resource://gre/modules/PromiseUtils.jsm");
+    yield new Promise(resolve => {
+      let listener = () => {
+        removeEventListener("pageshow", listener, true);
+        resolve();
+      }
+      addEventListener("pageshow", listener, true);
+    });
+  });
+}
+
+add_task(function*() {
+  let tab = gBrowser.addTab("about:blank");
+  let browser = tab.linkedBrowser;
+  yield BrowserTestUtils.browserLoaded(browser);
+  let listener = new LocationChangeListener(browser);
+
+  is(browser.isSyntheticDocument, false, "Should not be synthetic");
+
+  let loadPromise = waitForPageShow(browser);
+  browser.loadURI("data:text/html;charset=utf-8,<html/>");
+  yield loadPromise;
+  is(listener.wasSynthetic, false, "Should not be synthetic");
+  is(browser.isSyntheticDocument, false, "Should not be synthetic");
+
+  loadPromise = waitForPageShow(browser);
+  browser.loadURI(FILES + "empty.png");
+  yield loadPromise;
+  is(listener.wasSynthetic, true, "Should be synthetic");
+  is(browser.isSyntheticDocument, true, "Should be synthetic");
+
+  loadPromise = waitForPageShow(browser);
+  browser.goBack();
+  yield loadPromise;
+  is(listener.wasSynthetic, false, "Should not be synthetic");
+  is(browser.isSyntheticDocument, false, "Should not be synthetic");
+
+  loadPromise = waitForPageShow(browser);
+  browser.goForward();
+  yield loadPromise;
+  is(listener.wasSynthetic, true, "Should be synthetic");
+  is(browser.isSyntheticDocument, true, "Should be synthetic");
+
+  listener.destroy();
+  gBrowser.removeTab(tab);
+});