1 files changed, 48 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_canvasframe_helper_02.js b/devtools/server/tests/browser/browser_canvasframe_helper_02.js
new file mode 100644
index 000000000..90400c50a
--- /dev/null
+++ b/devtools/server/tests/browser/browser_canvasframe_helper_02.js
@@ -0,0 +1,48 @@
+/* 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/ */
+
+"use strict";
+
+// Test that the CanvasFrameAnonymousContentHelper does not insert content in
+// XUL windows.
+
+// This makes sure the 'domnode' protocol actor type is known when importing
+// highlighter.
+require("devtools/server/actors/inspector");
+
+const {HighlighterEnvironment} = require("devtools/server/actors/highlighters");
+
+const {
+  CanvasFrameAnonymousContentHelper
+} = require("devtools/server/actors/highlighters/utils/markup");
+
+add_task(function* () {
+  let browser = yield addTab("about:preferences");
+  let doc = browser.contentDocument;
+
+  let nodeBuilder = () => {
+    let root = doc.createElement("div");
+    let child = doc.createElement("div");
+    child.style = "width:200px;height:200px;background:red;";
+    child.id = "child-element";
+    child.className = "child-element";
+    child.textContent = "test element";
+    root.appendChild(child);
+    return root;
+  };
+
+  info("Building the helper");
+  let env = new HighlighterEnvironment();
+  env.initFromWindow(doc.defaultView);
+  let helper = new CanvasFrameAnonymousContentHelper(env, nodeBuilder);
+
+  ok(!helper.content, "The AnonymousContent was not inserted in the window");
+  ok(!helper.getTextContentForElement("child-element"),
+    "No text content is returned");
+
+  env.destroy();
+  helper.destroy();
+
+  gBrowser.removeCurrentTab();
+});