1 files changed, 47 insertions, 0 deletions
diff --git a/remote/shared/messagehandler/test/browser/browser_windowglobal_to_root.js b/remote/shared/messagehandler/test/browser/browser_windowglobal_to_root.js
new file mode 100644
index 0000000000..57629e5485
--- /dev/null
+++ b/remote/shared/messagehandler/test/browser/browser_windowglobal_to_root.js
@@ -0,0 +1,47 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+const { RootMessageHandler } = ChromeUtils.importESModule(
+  "chrome://remote/content/shared/messagehandler/RootMessageHandler.sys.mjs"
+);
+
+add_task(async function test_windowGlobal_to_root_command() {
+  // Navigate to a page to make sure that the windowglobal modules run in a
+  // different process than the root module.
+  const tab = BrowserTestUtils.addTab(
+    gBrowser,
+    "https://example.com/document-builder.sjs?html=tab"
+  );
+  await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
+  const browsingContextId = tab.linkedBrowser.browsingContext.id;
+
+  const rootMessageHandler = createRootMessageHandler(
+    "session-id-windowglobal-to-rootModule"
+  );
+
+  for (const commandName of [
+    "testHandleCommandToRoot",
+    "testSendRootCommand",
+  ]) {
+    const valueFromRoot = await rootMessageHandler.handleCommand({
+      moduleName: "windowglobaltoroot",
+      commandName,
+      destination: {
+        type: WindowGlobalMessageHandler.type,
+        id: browsingContextId,
+      },
+    });
+
+    is(
+      valueFromRoot,
+      "root-value-called-from-windowglobal",
+      "Retrieved the expected value from windowglobaltoroot using " +
+        commandName
+    );
+  }
+
+  rootMessageHandler.destroy();
+  gBrowser.removeTab(tab);
+});