1 files changed, 42 insertions, 0 deletions
diff --git a/devtools/client/styleeditor/test/browser_styleeditor_autocomplete-disabled.js b/devtools/client/styleeditor/test/browser_styleeditor_autocomplete-disabled.js
new file mode 100644
index 0000000000..fd7d4969d0
--- /dev/null
+++ b/devtools/client/styleeditor/test/browser_styleeditor_autocomplete-disabled.js
@@ -0,0 +1,42 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+// Test that autocomplete can be disabled.
+
+const TESTCASE_URI = TEST_BASE_HTTP + "autocomplete.html";
+
+// Pref which decides if CSS autocompletion is enabled in Style Editor or not.
+const AUTOCOMPLETION_PREF = "devtools.styleeditor.autocompletion-enabled";
+
+add_task(async function () {
+  const { ui } = await openStyleEditorForURL(TESTCASE_URI);
+  const editor = await ui.editors[0].getSourceEditor();
+  editor.sourceEditor.setOption("autocomplete", false);
+
+  is(
+    editor.sourceEditor.getOption("autocomplete"),
+    false,
+    "Autocompletion option does not exist"
+  );
+  ok(
+    !editor.sourceEditor.getAutocompletionPopup(),
+    "Autocompletion popup does not exist"
+  );
+});
+
+add_task(async function () {
+  Services.prefs.setBoolPref(AUTOCOMPLETION_PREF, false);
+  const { ui } = await openStyleEditorForURL(TESTCASE_URI);
+  const editor = await ui.editors[0].getSourceEditor();
+
+  is(
+    editor.sourceEditor.getOption("autocomplete"),
+    false,
+    "Autocompletion option does not exist"
+  );
+});
+
+registerCleanupFunction(() => {
+  Services.prefs.clearUserPref(AUTOCOMPLETION_PREF);
+});