1 files changed, 74 insertions, 0 deletions
diff --git a/dom/broadcastchannel/tests/browser_private_browsing.js b/dom/broadcastchannel/tests/browser_private_browsing.js
new file mode 100644
index 000000000..5724225fc
--- /dev/null
+++ b/dom/broadcastchannel/tests/browser_private_browsing.js
@@ -0,0 +1,74 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const URL = "http://mochi.test:8888/browser/dom/broadcastchannel/tests/blank.html";
+
+add_task(function*() {
+  var win1 = OpenBrowserWindow({private: true});
+  var win1Promise = new win1.Promise(resolve => {
+    win1.addEventListener("load", function onLoad() {
+      win1.removeEventListener("load", onLoad, false);
+      resolve();
+    });
+  });
+  yield win1Promise;
+
+  var win2 = OpenBrowserWindow({private: false});
+  var win2Promise = new win2.Promise(resolve => {
+    win2.addEventListener("load", function onLoad() {
+      win2.removeEventListener("load", onLoad, false);
+      resolve();
+    });
+  });
+  yield win2Promise;
+
+  var tab1 = win1.gBrowser.addTab(URL);
+  yield BrowserTestUtils.browserLoaded(win1.gBrowser.getBrowserForTab(tab1));
+  var browser1 = gBrowser.getBrowserForTab(tab1);
+
+  var tab2 = win2.gBrowser.addTab(URL);
+  yield BrowserTestUtils.browserLoaded(win2.gBrowser.getBrowserForTab(tab2));
+  var browser2 = gBrowser.getBrowserForTab(tab2);
+
+  var p1 = ContentTask.spawn(browser1, null, function(opts) {
+    return new content.window.Promise(resolve => {
+      content.window.bc = new content.window.BroadcastChannel('foobar');
+      content.window.bc.onmessage = function(e) { resolve(e.data); }
+    });
+  });
+
+  var p2 = ContentTask.spawn(browser2, null, function(opts) {
+    return new content.window.Promise(resolve => {
+      content.window.bc = new content.window.BroadcastChannel('foobar');
+      content.window.bc.onmessage = function(e) { resolve(e.data); }
+    });
+  });
+
+  yield ContentTask.spawn(browser1, null, function(opts) {
+    return new content.window.Promise(resolve => {
+      var bc = new content.window.BroadcastChannel('foobar');
+      bc.postMessage('hello world from private browsing');
+      resolve();
+    });
+  });
+
+  yield ContentTask.spawn(browser2, null, function(opts) {
+    return new content.window.Promise(resolve => {
+      var bc = new content.window.BroadcastChannel('foobar');
+      bc.postMessage('hello world from non private browsing');
+      resolve();
+    });
+  });
+
+  var what1 = yield p1;
+  ok(what1, 'hello world from private browsing', 'No messages received from the other window.');
+
+  var what2 = yield p2;
+  ok(what1, 'hello world from non private browsing', 'No messages received from the other window.');
+
+  yield BrowserTestUtils.removeTab(tab1);
+  yield BrowserTestUtils.closeWindow(win1);
+
+  yield BrowserTestUtils.removeTab(tab2);
+  yield BrowserTestUtils.closeWindow(win2);
+});