1 files changed, 41 insertions, 0 deletions
diff --git a/remote/test/browser/target/browser_sendMessageToTarget.js b/remote/test/browser/target/browser_sendMessageToTarget.js
new file mode 100644
index 0000000000..b440066178
--- /dev/null
+++ b/remote/test/browser/target/browser_sendMessageToTarget.js
@@ -0,0 +1,41 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function sendToAttachedTarget({ client }) {
+  const { Target } = client;
+  const { targetInfo } = await openTab(Target);
+
+  const attachedToTarget = Target.attachedToTarget();
+  const { sessionId } = await Target.attachToTarget({
+    targetId: targetInfo.targetId,
+  });
+  await attachedToTarget;
+  info("Target attached");
+
+  const id = 1;
+  const message = JSON.stringify({
+    id,
+    method: "Page.navigate",
+    params: {
+      url: toDataURL("new-page"),
+    },
+  });
+
+  info("Calling Target.sendMessageToTarget");
+  const onResponse = Target.receivedMessageFromTarget();
+  await Target.sendMessageToTarget({ sessionId, message });
+  const response = await onResponse;
+  info("Message from target received");
+
+  ok(!!response, "The response is not empty");
+  is(response.sessionId, sessionId, "The response is from the same session");
+
+  const responseMessage = JSON.parse(response.message);
+  is(responseMessage.id, id, "The response is from the same session");
+  ok(
+    !!responseMessage.result.frameId,
+    "received the `frameId` out of `Page.navigate` request"
+  );
+});