1 files changed, 59 insertions, 0 deletions
diff --git a/devtools/client/sourceeditor/test/browser_editor_autocomplete_basic.js b/devtools/client/sourceeditor/test/browser_editor_autocomplete_basic.js
new file mode 100644
index 000000000..03cdc2a4a
--- /dev/null
+++ b/devtools/client/sourceeditor/test/browser_editor_autocomplete_basic.js
@@ -0,0 +1,59 @@
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const AUTOCOMPLETION_PREF = "devtools.editor.autocomplete";
+
+// Test to make sure that different autocompletion modes can be created,
+// switched, and destroyed.  This doesn't test the actual autocompletion
+// popups, only their integration with the editor.
+function test() {
+  waitForExplicitFinish();
+  setup((ed, win) => {
+    let edWin = ed.container.contentWindow.wrappedJSObject;
+    testJS(ed, edWin);
+    testCSS(ed, edWin);
+    testPref(ed, edWin);
+    teardown(ed, win);
+  });
+}
+
+function testJS(ed, win) {
+  ok(!ed.getOption("autocomplete"), "Autocompletion is not set");
+  ok(!win.tern, "Tern is not defined on the window");
+
+  ed.setMode(Editor.modes.js);
+  ed.setOption("autocomplete", true);
+
+  ok(ed.getOption("autocomplete"), "Autocompletion is set");
+  ok(win.tern, "Tern is defined on the window");
+}
+
+function testCSS(ed, win) {
+  ok(ed.getOption("autocomplete"), "Autocompletion is set");
+  ok(win.tern, "Tern is currently defined on the window");
+
+  ed.setMode(Editor.modes.css);
+  ed.setOption("autocomplete", true);
+
+  ok(ed.getOption("autocomplete"), "Autocompletion is still set");
+  ok(!win.tern, "Tern is no longer defined on the window");
+}
+
+function testPref(ed, win) {
+  ed.setMode(Editor.modes.js);
+  ed.setOption("autocomplete", true);
+
+  ok(ed.getOption("autocomplete"), "Autocompletion is set");
+  ok(win.tern, "Tern is defined on the window");
+
+  info("Preffing autocompletion off");
+  Services.prefs.setBoolPref(AUTOCOMPLETION_PREF, false);
+
+  ok(ed.getOption("autocomplete"), "Autocompletion is still set");
+  ok(!win.tern, "Tern is no longer defined on the window");
+
+  Services.prefs.clearUserPref(AUTOCOMPLETION_PREF);
+}