1 files changed, 53 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser_webconsole_bug_588730_text_node_insertion.js b/devtools/client/webconsole/test/browser_webconsole_bug_588730_text_node_insertion.js
new file mode 100644
index 000000000..94a0ad77e
--- /dev/null
+++ b/devtools/client/webconsole/test/browser_webconsole_bug_588730_text_node_insertion.js
@@ -0,0 +1,53 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that adding text to one of the output labels doesn't cause errors.
+
+"use strict";
+
+const TEST_URI = "http://example.com/browser/devtools/client/webconsole/" +
+                 "test/test-console.html";
+
+add_task(function* () {
+  yield loadTab(TEST_URI);
+
+  let hud = yield openConsole();
+
+  yield testTextNodeInsertion(hud);
+});
+
+// Test for bug 588730: Adding a text node to an existing label element causes
+// warnings
+function testTextNodeInsertion(hud) {
+  let deferred = promise.defer();
+  let outputNode = hud.outputNode;
+
+  let label = document.createElementNS(
+    "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "label");
+  outputNode.appendChild(label);
+
+  let error = false;
+  let listener = {
+    observe: function (aMessage) {
+      let messageText = aMessage.message;
+      if (messageText.indexOf("JavaScript Warning") !== -1) {
+        error = true;
+      }
+    }
+  };
+
+  Services.console.registerListener(listener);
+
+  // This shouldn't fail.
+  label.appendChild(document.createTextNode("foo"));
+
+  executeSoon(function () {
+    Services.console.unregisterListener(listener);
+    ok(!error, "no error when adding text nodes as children of labels");
+
+    return deferred.resolve();
+  });
+  return deferred.promise;
+}