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import { createBrowserClient } from "../../src/client";
import { createOwnershipRegistry } from "../../src/cdp/ownership";
import type { CdpTransport } from "../../src/cdp/transport";
import type { CdpEvent } from "../../src/cdp/types";
import { ok, type Result } from "../../src/util/result";
import type { CdpError } from "../../src/cdp/errors";
let passed = 0;
let failed = 0;
const check = (cond: boolean, label: string): void => {
if (cond) { passed++; console.log(` ✓ ${label}`); }
else { failed++; console.error(` ✗ ${label}`); }
};
type FakeTarget = { targetId: string; type: string; url: string; title: string; windowId: number; openerId?: string };
const createMockTransport = (): CdpTransport & {
seed: (t: FakeTarget) => void;
targets: Map<string, FakeTarget>;
closed: ReadonlyArray<string>;
} => {
const targets = new Map<string, FakeTarget>();
const closed: string[] = [];
let sessionSeq = 0;
let targetSeq = 0;
let windowSeq = 100;
const listeners: Array<() => void> = [];
let buffer: CdpEvent[] = [];
let waiter: (() => void) | null = null;
const push = (ev: CdpEvent): void => {
buffer.push(ev);
if (waiter) { const w = waiter; waiter = null; w(); }
};
const iterable: AsyncIterable<CdpEvent> = {
[Symbol.asyncIterator]() {
return {
async next(): Promise<IteratorResult<CdpEvent>> {
if (buffer.length === 0) {
await new Promise<void>((r) => { waiter = r; });
}
const v = buffer.shift()!;
return { value: v, done: false };
},
};
},
};
const request = async (
method: string,
params: Record<string, unknown>,
): Promise<Result<unknown, CdpError>> => {
switch (method) {
case "Target.setDiscoverTargets":
case "Page.enable": case "DOM.enable": case "Runtime.enable":
case "Network.enable": case "Accessibility.enable": case "Log.enable":
case "Target.activateTarget":
return ok({});
case "Target.getTargets":
return ok({ targetInfos: [...targets.values()].map((t) => ({ targetId: t.targetId, type: t.type, url: t.url, title: t.title })) });
case "Browser.getWindowForTarget": {
const t = targets.get(params["targetId"] as string);
return ok({ windowId: t?.windowId ?? -1, bounds: {} });
}
case "Target.createTarget": {
const id = `tgt-${++targetSeq}`;
const opener = params["openerId"] as string | undefined;
const newWindow = params["newWindow"] === true;
const windowId = newWindow || !opener ? ++windowSeq : (targets.get(opener)?.windowId ?? ++windowSeq);
const t: FakeTarget = { targetId: id, type: "page", url: (params["url"] as string) ?? "about:blank", title: "", windowId, ...(opener ? { openerId: opener } : {}) };
targets.set(id, t);
push({ method: "Target.targetCreated", params: { targetInfo: { targetId: id, type: "page", url: t.url, openerId: opener } } });
return ok({ targetId: id });
}
case "Target.attachToTarget":
return ok({ sessionId: `sess-${++sessionSeq}` });
case "Target.detachFromTarget":
return ok({});
case "Target.closeTarget": {
const id = params["targetId"] as string;
if (targets.delete(id)) { closed.push(id); push({ method: "Target.targetDestroyed", params: { targetId: id } }); }
return ok({});
}
case "Runtime.evaluate":
return ok({ result: { value: "complete" } });
case "Page.navigate":
return ok({ frameId: "f1" });
default:
return ok({});
}
};
return {
connect: async () => ok(undefined),
close: async () => { for (const l of listeners) l(); },
request,
events: () => iterable,
state: () => "open",
onClose: (cb) => { listeners.push(cb); return () => {}; },
seed: (t) => targets.set(t.targetId, t),
targets,
get closed() { return closed; },
};
};
const tick = (): Promise<void> => new Promise((r) => setTimeout(r, 20));
async function main(): Promise<void> {
console.log("window-binding-test\n");
{
const reg = createOwnershipRegistry();
check(reg.harnessWindowId() === undefined, "windowId starts undefined");
reg.setHarnessWindowId(101);
check(reg.harnessWindowId() === 101, "setHarnessWindowId stores the id");
let notified = 0;
reg.onChange(() => { notified++; });
reg.setHarnessWindowId(101);
check(notified === 0, "setting the same windowId does not notify");
reg.setHarnessWindowId(undefined);
check(reg.harnessWindowId() === undefined && notified === 1, "clearing windowId notifies");
}
{
const transport = createMockTransport();
const client = createBrowserClient({ namespace: "t", transport });
await client.start();
const wid = client.ownership().harnessWindowId();
check(typeof wid === "number", "attach captures a real windowId for the harness window");
const first = await client.newTab("https://a.test");
check(first.success, "newTab succeeds");
if (first.success) {
const t = transport.targets.get(first.data)!;
check(t.windowId === wid, "new tab lands in the harness window (via openerId)");
check(client.owns(first.data), "new tab is owned");
}
}
{
const transport = createMockTransport();
const client = createBrowserClient({ namespace: "t", transport });
await client.start();
const cur = client.current()!;
const child = await client.session().callBrowser("Target.createTarget", { url: "https://child.test", openerId: cur.targetId });
await tick();
check(child.success, "owned page opens a child target");
if (child.success) {
const id = (child.data as { targetId: string }).targetId;
check(client.owns(id), "child target opened by an owned tab is auto-adopted");
}
const stranger = await client.session().callBrowser("Target.createTarget", { url: "https://user.test", newWindow: true });
await tick();
if (stranger.success) {
const id = (stranger.data as { targetId: string }).targetId;
check(!client.owns(id), "target with no owned opener is not adopted");
}
}
{
const transport = createMockTransport();
transport.seed({ targetId: "own-1", type: "page", url: "https://a.test", title: "", windowId: 500 });
transport.seed({ targetId: "sib-2", type: "page", url: "https://b.test", title: "", windowId: 500, openerId: "own-1" });
transport.seed({ targetId: "user-9", type: "page", url: "https://user.test", title: "", windowId: 700 });
const client = createBrowserClient({
namespace: "t",
transport,
initialOwnership: { ownedTargetIds: ["own-1"], harnessWindowTargetId: "own-1", harnessWindowId: 500 },
});
await client.start();
check(client.owns("own-1"), "reattach: persisted owned tab stays owned");
check(client.owns("sib-2"), "reattach: live window-mate (last session's popup) is re-adopted");
check(!client.owns("user-9"), "reattach: a tab in a DIFFERENT window is never adopted");
}
{
const transport = createMockTransport();
transport.seed({ targetId: "user-a", type: "page", url: "https://user-a.test", title: "", windowId: 500 });
transport.seed({ targetId: "user-b", type: "page", url: "https://user-b.test", title: "", windowId: 500 });
const client = createBrowserClient({
namespace: "t",
transport,
initialOwnership: { ownedTargetIds: ["dead-1"], harnessWindowTargetId: "dead-1", harnessWindowId: 500 },
});
await client.start();
check(!client.owns("user-a") && !client.owns("user-b"), "restart: stale windowId does NOT adopt the user's tabs");
check(client.ownership().harnessWindowId() !== 500, "restart: binds a fresh window instead of the colliding id");
check(client.current() !== null && !["user-a", "user-b"].includes(client.current()!.targetId), "restart: attaches to a fresh harness tab, not a user tab");
}
{
const transport = createMockTransport();
const client = createBrowserClient({ namespace: "t", transport });
await client.start();
await client.newTab("https://a.test");
await client.newTab("https://b.test");
const ownedBefore = client.ownership().list();
check(ownedBefore.length >= 2, "several owned tabs before teardown");
await client.closeOwnedTabs();
check(client.ownership().list().length === 0, "closeOwnedTabs clears the owned set");
check(client.ownership().harnessWindowId() === undefined, "closeOwnedTabs clears the windowId binding");
check(ownedBefore.every((id) => transport.closed.includes(id)), "every owned tab was actually closed in the browser");
}
console.log(`\n${passed} passed, ${failed} failed`);
process.exit(failed === 0 ? 0 : 1);
}
void main();
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