1 files changed, 56 insertions, 0 deletions
diff --git a/remote/cdp/test/browser/browser_main_target.js b/remote/cdp/test/browser/browser_main_target.js
new file mode 100644
index 0000000000..b3b18b4c0c
--- /dev/null
+++ b/remote/cdp/test/browser/browser_main_target.js
@@ -0,0 +1,56 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test very basic CDP features.
+
+add_task(async function ({ CDP }) {
+  const { mainProcessTarget } = RemoteAgent.cdp.targetList;
+  ok(
+    mainProcessTarget,
+    "The main process target is instantiated after the call to `listen`"
+  );
+
+  const targetURL = mainProcessTarget.wsDebuggerURL;
+
+  const client = await CDP({ target: targetURL });
+  info("CDP client has been instantiated");
+
+  try {
+    const { Browser, Target } = client;
+    ok(Browser, "The main process target exposes Browser domain");
+    ok(Target, "The main process target exposes Target domain");
+
+    const version = await Browser.getVersion();
+
+    const { isHeadless } = Cc["@mozilla.org/gfx/info;1"].getService(
+      Ci.nsIGfxInfo
+    );
+    const expectedProduct =
+      (isHeadless ? "Headless" : "") +
+      `${Services.appinfo.name}/${Services.appinfo.version}`;
+    is(version.product, expectedProduct, "Browser.getVersion works");
+
+    is(
+      version.revision,
+      Services.appinfo.sourceURL.split("/").pop(),
+      "Browser.getVersion().revision is correct"
+    );
+
+    is(
+      version.jsVersion,
+      Services.appinfo.version,
+      "Browser.getVersion().jsVersion is correct"
+    );
+
+    const { webSocketDebuggerUrl } = await CDP.Version();
+    is(
+      webSocketDebuggerUrl,
+      targetURL,
+      "Version endpoint refers to the same Main process target"
+    );
+  } finally {
+    await client.close();
+  }
+});