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test(browser): cover agent contract

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This commit is contained in:
Peter Steinberger
2025-12-20 09:34:22 +00:00
parent 9b8a4d0c76
commit 429972b5c5
3 changed files with 421 additions and 36 deletions
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339
src/browser/server.test.ts
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@@ -8,6 +8,39 @@ let reachable = false;
let cfgAttachOnly = false;
let createTargetId: string | null = null;
const cdpMocks = vi.hoisted(() => ({
createTargetViaCdp: vi.fn(async () => {
throw new Error("cdp disabled");
}),
snapshotAria: vi.fn(async () => ({
nodes: [{ ref: "1", role: "link", name: "x", depth: 0 }],
})),
}));
const pwMocks = vi.hoisted(() => ({
armDialogViaPlaywright: vi.fn(async () => {}),
armFileUploadViaPlaywright: vi.fn(async () => {}),
clickViaPlaywright: vi.fn(async () => {}),
closePageViaPlaywright: vi.fn(async () => {}),
closePlaywrightBrowserConnection: vi.fn(async () => {}),
dragViaPlaywright: vi.fn(async () => {}),
evaluateViaPlaywright: vi.fn(async () => "ok"),
fillFormViaPlaywright: vi.fn(async () => {}),
getConsoleMessagesViaPlaywright: vi.fn(async () => []),
hoverViaPlaywright: vi.fn(async () => {}),
navigateViaPlaywright: vi.fn(async () => ({ url: "https://example.com" })),
pdfViaPlaywright: vi.fn(async () => ({ buffer: Buffer.from("pdf") })),
pressKeyViaPlaywright: vi.fn(async () => {}),
resizeViewportViaPlaywright: vi.fn(async () => {}),
selectOptionViaPlaywright: vi.fn(async () => {}),
snapshotAiViaPlaywright: vi.fn(async () => ({ snapshot: "ok" })),
takeScreenshotViaPlaywright: vi.fn(async () => ({
buffer: Buffer.from("png"),
})),
typeViaPlaywright: vi.fn(async () => {}),
waitForViaPlaywright: vi.fn(async () => {}),
}));
function makeProc(pid = 123) {
const handlers = new Map<string, Array<(...args: unknown[]) => void>>();
return {
@@ -62,38 +95,11 @@ vi.mock("./chrome.js", () => ({
}));
vi.mock("./cdp.js", () => ({
createTargetViaCdp: vi.fn(async () => {
if (createTargetId) return { targetId: createTargetId };
throw new Error("cdp disabled");
}),
snapshotAria: vi.fn(async () => ({
nodes: [{ ref: "1", role: "link", name: "x", depth: 0 }],
})),
createTargetViaCdp: cdpMocks.createTargetViaCdp,
snapshotAria: cdpMocks.snapshotAria,
}));
vi.mock("./pw-ai.js", () => ({
armDialogViaPlaywright: vi.fn(async () => {}),
armFileUploadViaPlaywright: vi.fn(async () => {}),
clickViaPlaywright: vi.fn(async () => {}),
closePageViaPlaywright: vi.fn(async () => {}),
closePlaywrightBrowserConnection: vi.fn(async () => {}),
evaluateViaPlaywright: vi.fn(async () => "ok"),
fillFormViaPlaywright: vi.fn(async () => {}),
getConsoleMessagesViaPlaywright: vi.fn(async () => []),
hoverViaPlaywright: vi.fn(async () => {}),
navigateViaPlaywright: vi.fn(async () => ({ url: "https://example.com" })),
pdfViaPlaywright: vi.fn(async () => ({ buffer: Buffer.from("pdf") })),
pressKeyViaPlaywright: vi.fn(async () => {}),
resizeViewportViaPlaywright: vi.fn(async () => {}),
selectOptionViaPlaywright: vi.fn(async () => {}),
snapshotAiViaPlaywright: vi.fn(async () => ({ snapshot: "ok" })),
takeScreenshotViaPlaywright: vi.fn(async () => ({
buffer: Buffer.from("png"),
})),
typeViaPlaywright: vi.fn(async () => {}),
waitForViaPlaywright: vi.fn(async () => {}),
dragViaPlaywright: vi.fn(async () => {}),
}));
vi.mock("./pw-ai.js", () => pwMocks);
vi.mock("../media/store.js", () => ({
ensureMediaDir: vi.fn(async () => {}),
@@ -141,6 +147,14 @@ describe("browser control server", () => {
cfgAttachOnly = false;
createTargetId = null;
cdpMocks.createTargetViaCdp.mockImplementation(async () => {
if (createTargetId) return { targetId: createTargetId };
throw new Error("cdp disabled");
});
for (const fn of Object.values(pwMocks)) fn.mockClear();
for (const fn of Object.values(cdpMocks)) fn.mockClear();
testPort = await getFreePort();
// Minimal CDP JSON endpoints used by the server.
@@ -265,12 +279,20 @@ describe("browser control server", () => {
};
expect(snapAria.ok).toBe(true);
expect(snapAria.format).toBe("aria");
expect(cdpMocks.snapshotAria).toHaveBeenCalledWith({
wsUrl: "ws://127.0.0.1/devtools/page/abcd1234",
limit: 1,
});
const snapAi = (await realFetch(`${base}/snapshot?format=ai`).then((r) =>
r.json(),
)) as { ok: boolean; format?: string; snapshot?: string };
expect(snapAi.ok).toBe(true);
expect(snapAi.format).toBe("ai");
expect(pwMocks.snapshotAiViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
});
const nav = (await realFetch(`${base}/navigate`, {
method: "POST",
@@ -279,13 +301,138 @@ describe("browser control server", () => {
}).then((r) => r.json())) as { ok: boolean; targetId?: string };
expect(nav.ok).toBe(true);
expect(typeof nav.targetId).toBe("string");
expect(pwMocks.navigateViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
url: "https://example.com",
});
const click = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "click", ref: "1" }),
body: JSON.stringify({
kind: "click",
ref: "1",
button: "left",
modifiers: ["Shift"],
}),
}).then((r) => r.json())) as { ok: boolean };
expect(click.ok).toBe(true);
expect(pwMocks.clickViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
ref: "1",
doubleClick: false,
button: "left",
modifiers: ["Shift"],
});
const type = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "type", ref: "1", text: "" }),
}).then((r) => r.json())) as { ok: boolean };
expect(type.ok).toBe(true);
expect(pwMocks.typeViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
ref: "1",
text: "",
submit: false,
slowly: false,
});
const press = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "press", key: "Enter" }),
}).then((r) => r.json())) as { ok: boolean };
expect(press.ok).toBe(true);
expect(pwMocks.pressKeyViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
key: "Enter",
});
const hover = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "hover", ref: "2" }),
}).then((r) => r.json())) as { ok: boolean };
expect(hover.ok).toBe(true);
expect(pwMocks.hoverViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
ref: "2",
});
const drag = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "drag", startRef: "3", endRef: "4" }),
}).then((r) => r.json())) as { ok: boolean };
expect(drag.ok).toBe(true);
expect(pwMocks.dragViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
startRef: "3",
endRef: "4",
});
const select = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "select", ref: "5", values: ["a", "b"] }),
}).then((r) => r.json())) as { ok: boolean };
expect(select.ok).toBe(true);
expect(pwMocks.selectOptionViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
ref: "5",
values: ["a", "b"],
});
const fill = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
kind: "fill",
fields: [{ ref: "6", type: "textbox", value: "hello" }],
}),
}).then((r) => r.json())) as { ok: boolean };
expect(fill.ok).toBe(true);
expect(pwMocks.fillFormViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
fields: [{ ref: "6", type: "textbox", value: "hello" }],
});
const resize = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "resize", width: 800, height: 600 }),
}).then((r) => r.json())) as { ok: boolean };
expect(resize.ok).toBe(true);
expect(pwMocks.resizeViewportViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
width: 800,
height: 600,
});
const wait = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "wait", timeMs: 5 }),
}).then((r) => r.json())) as { ok: boolean };
expect(wait.ok).toBe(true);
expect(pwMocks.waitForViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
timeMs: 5,
text: undefined,
textGone: undefined,
});
const evalRes = (await realFetch(`${base}/act`, {
method: "POST",
@@ -293,26 +440,51 @@ describe("browser control server", () => {
body: JSON.stringify({ kind: "evaluate", fn: "() => 1" }),
}).then((r) => r.json())) as { ok: boolean; result?: unknown };
expect(evalRes.ok).toBe(true);
expect(evalRes.result).toBe("ok");
expect(pwMocks.evaluateViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
fn: "() => 1",
ref: undefined,
});
const upload = await realFetch(`${base}/hooks/file-chooser`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ paths: ["/tmp/a.txt"] }),
body: JSON.stringify({ paths: ["/tmp/a.txt"], timeoutMs: 1234 }),
}).then((r) => r.json());
expect(upload).toMatchObject({ ok: true });
expect(pwMocks.armFileUploadViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
paths: ["/tmp/a.txt"],
timeoutMs: 1234,
});
const dialog = await realFetch(`${base}/hooks/dialog`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ accept: true }),
body: JSON.stringify({ accept: true, timeoutMs: 5678 }),
}).then((r) => r.json());
expect(dialog).toMatchObject({ ok: true });
expect(pwMocks.armDialogViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
accept: true,
promptText: undefined,
timeoutMs: 5678,
});
const consoleRes = (await realFetch(`${base}/console`).then((r) =>
r.json(),
const consoleRes = (await realFetch(`${base}/console?level=error`).then(
(r) => r.json(),
)) as { ok: boolean; messages?: unknown[] };
expect(consoleRes.ok).toBe(true);
expect(Array.isArray(consoleRes.messages)).toBe(true);
expect(pwMocks.getConsoleMessagesViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
level: "error",
});
const pdf = (await realFetch(`${base}/pdf`, {
method: "POST",
@@ -325,10 +497,29 @@ describe("browser control server", () => {
const shot = (await realFetch(`${base}/screenshot`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ fullPage: true }),
body: JSON.stringify({ element: "body", type: "jpeg" }),
}).then((r) => r.json())) as { ok: boolean; path?: string };
expect(shot.ok).toBe(true);
expect(typeof shot.path).toBe("string");
expect(pwMocks.takeScreenshotViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
ref: undefined,
element: "body",
fullPage: false,
type: "jpeg",
});
const close = (await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "close" }),
}).then((r) => r.json())) as { ok: boolean };
expect(close.ok).toBe(true);
expect(pwMocks.closePageViaPlaywright).toHaveBeenCalledWith({
cdpPort: testPort + 1,
targetId: "abcd1234",
});
const stopped = (await realFetch(`${base}/stop`, {
method: "POST",
@@ -337,6 +528,82 @@ describe("browser control server", () => {
expect(stopped.stopped).toBe(true);
});
it("validates agent inputs (agent routes)", async () => {
const { startBrowserControlServerFromConfig } = await import("./server.js");
await startBrowserControlServerFromConfig();
const base = `http://127.0.0.1:${testPort}`;
await realFetch(`${base}/start`, { method: "POST" }).then((r) => r.json());
const navMissing = await realFetch(`${base}/navigate`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({}),
});
expect(navMissing.status).toBe(400);
const actMissing = await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({}),
});
expect(actMissing.status).toBe(400);
const clickMissingRef = await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "click" }),
});
expect(clickMissingRef.status).toBe(400);
const clickBadButton = await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "click", ref: "1", button: "nope" }),
});
expect(clickBadButton.status).toBe(400);
const clickBadModifiers = await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "click", ref: "1", modifiers: ["Nope"] }),
});
expect(clickBadModifiers.status).toBe(400);
const typeBadText = await realFetch(`${base}/act`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ kind: "type", ref: "1", text: 123 }),
});
expect(typeBadText.status).toBe(400);
const uploadMissingPaths = await realFetch(`${base}/hooks/file-chooser`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({}),
});
expect(uploadMissingPaths.status).toBe(400);
const dialogMissingAccept = await realFetch(`${base}/hooks/dialog`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({}),
});
expect(dialogMissingAccept.status).toBe(400);
const snapDefault = (await realFetch(`${base}/snapshot?format=wat`).then(
(r) => r.json(),
)) as { ok: boolean; format?: string };
expect(snapDefault.ok).toBe(true);
expect(snapDefault.format).toBe("ai");
const screenshotBadCombo = await realFetch(`${base}/screenshot`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ fullPage: true, element: "body" }),
});
expect(screenshotBadCombo.status).toBe(400);
});
it("covers common error branches", async () => {
cfgAttachOnly = true;
const { startBrowserControlServerFromConfig } = await import("./server.js");