1 files changed, 62 insertions, 0 deletions
diff --git a/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_rtl.js b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_rtl.js
new file mode 100644
index 0000000000..4424df6ea8
--- /dev/null
+++ b/devtools/client/aboutdebugging/test/browser/browser_aboutdebugging_rtl.js
@@ -0,0 +1,62 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// Test that the about:debugging document and the profiler dialog document
+// use the expected document direction.
+add_task(async function test_direction_is_ltr_by_default() {
+  await testAboutDebuggingDocsDirection("ltr");
+});
+
+add_task(async function test_direction_is_rtl_for_bidi_pseudolocale() {
+  await pushPref("intl.l10n.pseudo", "bidi");
+  await testAboutDebuggingDocsDirection("rtl");
+});
+
+async function testAboutDebuggingDocsDirection(expectedDir) {
+  const mocks = new Mocks();
+  const { document, usbClient } = await setupTestForMockUSBRuntime(mocks);
+
+  is(document.dir, expectedDir, "document dir is " + expectedDir);
+
+  info("Open the profiler dialog");
+  await openProfilerDialog(usbClient, document);
+
+  const profilerDialogFrame = document.querySelector(
+    ".qa-profiler-dialog iframe"
+  );
+  ok(profilerDialogFrame, "Found Profiler dialog iframe");
+
+  const profilerDoc = profilerDialogFrame.contentWindow.document;
+  is(profilerDoc.dir, expectedDir, "Profiler document dir is " + expectedDir);
+
+  await teardownTestForMockUSBRuntime(mocks, document);
+}
+
+async function setupTestForMockUSBRuntime(mocks) {
+  info("Setup mock USB runtime");
+
+  const usbClient = mocks.createUSBRuntime("runtimeId", {
+    deviceName: "deviceName",
+    name: "runtimeName",
+  });
+
+  info("Open about:debugging and select runtime page for mock USB runtime");
+  const { document } = await openAboutDebugging();
+
+  mocks.emitUSBUpdate();
+  await connectToRuntime("deviceName", document);
+  await selectRuntime("deviceName", "runtimeName", document);
+
+  return { document, usbClient };
+}
+
+async function teardownTestForMockUSBRuntime(mocks, doc) {
+  info("Remove mock USB runtime");
+
+  mocks.removeUSBRuntime("runtimeId");
+  mocks.emitUSBUpdate();
+  await waitUntilUsbDeviceIsUnplugged("deviceName", doc);
+}