1 files changed, 46 insertions, 0 deletions
diff --git a/devtools/client/shared/sourceeditor/test/browser_editor_alt_b_f.js b/devtools/client/shared/sourceeditor/test/browser_editor_alt_b_f.js
new file mode 100644
index 0000000000..cacefd8dac
--- /dev/null
+++ b/devtools/client/shared/sourceeditor/test/browser_editor_alt_b_f.js
@@ -0,0 +1,46 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Ensure Alt-B and Alt-F keyboard shortcuts work as expected in the source editor.
+// See Bug 1481443.
+
+add_task(async function () {
+  const { ed, win } = await setup();
+  const editorDoc = ed.container.contentDocument;
+  await promiseWaitForFocus();
+  const isMacOS = Services.appinfo.OS === "Darwin";
+
+  ed.focus();
+
+  const initialText = "a b c d e";
+  ed.setText(initialText);
+
+  ed.setCursor({ line: 1, ch: initialText.length });
+
+  EventUtils.synthesizeKey("b", { altKey: true }, editorDoc.defaultView);
+
+  // A character is added only on OSX.
+  let expectedText = isMacOS ? initialText + "b" : initialText;
+  is(
+    ed.getCursor().ch,
+    expectedText.length,
+    "Cursor is at expected position after Alt-B"
+  );
+  is(ed.getText(), expectedText, "Editor has expected content after Alt-B");
+
+  EventUtils.synthesizeKey("f", { altKey: true }, editorDoc.defaultView);
+
+  // A character is added only on OSX.
+  expectedText = isMacOS ? expectedText + "f" : initialText;
+  is(
+    ed.getCursor().ch,
+    expectedText.length,
+    "Cursor is at expected position after Alt-F"
+  );
+  is(ed.getText(), expectedText, "Editor has expected content after Alt-F");
+
+  ed.destroy();
+  win.close();
+});