1 files changed, 54 insertions, 0 deletions
diff --git a/remote/cdp/test/browser/target/browser_attachToTarget.js b/remote/cdp/test/browser/target/browser_attachToTarget.js
new file mode 100644
index 0000000000..1ad34f3305
--- /dev/null
+++ b/remote/cdp/test/browser/target/browser_attachToTarget.js
@@ -0,0 +1,54 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function raisesWithoutArguments({ client, tab }) {
+  const { Target } = client;
+  let errorThrown = false;
+  try {
+    await Target.attachToTarget();
+  } catch (e) {
+    errorThrown = true;
+  }
+  ok(errorThrown, "attachToTarget raised error without an argument");
+});
+
+add_task(async function raisesWithUnknownTargetId({ client, tab }) {
+  const { Target } = client;
+  let errorThrown = false;
+  try {
+    await Target.attachToTarget({ targetId: "-1" });
+  } catch (e) {
+    errorThrown = true;
+  }
+  ok(errorThrown, "attachToTarget raised error with unkown target id");
+});
+
+add_task(
+  async function attachPageTarget({ client }) {
+    const { Target } = client;
+    const { targetInfo } = await openTab(Target);
+
+    ok(!targetInfo.attached, "New target is not attached");
+
+    info("Attach new target");
+    const { sessionId } = await Target.attachToTarget({
+      targetId: targetInfo.targetId,
+    });
+
+    is(
+      typeof sessionId,
+      "string",
+      "attachToTarget returns the session id as string"
+    );
+
+    const { targetInfos } = await Target.getTargets();
+    const listedTarget = targetInfos.find(
+      info => info.targetId === targetInfo.targetId
+    );
+
+    ok(listedTarget.attached, "New target is attached");
+  },
+  { createTab: false }
+);