1 files changed, 34 insertions, 0 deletions
diff --git a/devtools/client/sourceeditor/test/browser_editor_addons.js b/devtools/client/sourceeditor/test/browser_editor_addons.js
new file mode 100644
index 000000000..6a7e9ca42
--- /dev/null
+++ b/devtools/client/sourceeditor/test/browser_editor_addons.js
@@ -0,0 +1,34 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+function test() {
+  waitForExplicitFinish();
+
+  setup((ed, win) => {
+    let doc = win.document.querySelector("iframe").contentWindow.document;
+
+    // trailingspace.js
+    ed.setText("Hello   ");
+    ed.setOption("showTrailingSpace", false);
+    ok(!doc.querySelector(".cm-trailingspace"));
+    ed.setOption("showTrailingSpace", true);
+    ok(doc.querySelector(".cm-trailingspace"));
+
+    // foldcode.js and foldgutter.js
+    ed.setMode(Editor.modes.js);
+    ed.setText("function main() {\nreturn 'Hello, World!';\n}");
+    executeSoon(() => testFold(doc, ed, win));
+  });
+}
+
+function testFold(doc, ed, win) {
+  // Wait until folding arrow is there.
+  if (!doc.querySelector(".CodeMirror-foldgutter-open")) {
+    executeSoon(() => testFold(doc, ed, win));
+    return;
+  }
+
+  teardown(ed, win);
+}