mirror of
https://github.com/badlogic/pi-mono.git
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579 lines
19 KiB
TypeScript
579 lines
19 KiB
TypeScript
import { Check } from "typebox/value";
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import { describe, expect, test } from "vitest";
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import {
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type ClientHello,
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type ClientMessage,
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ClientMessageDecoder,
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createRpcClient,
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createRpcDispatcher,
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decodeCbor,
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defineRpc,
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encodeCbor,
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encodeClientMessage,
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encodeFrame,
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encodeServerMessage,
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FrameDecoder,
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isSupportedProtocolVersion,
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type JsonValue,
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JsonValueSchema,
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type LaneSnapshot,
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PROTOCOL_VERSION,
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PromptArgumentsSchema,
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ProtocolValidationError,
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parseClientMessage,
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parseServerMessage,
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type RunResult,
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RunResultSchema,
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type ServerHello,
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type ServerMessage,
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ServerMessageDecoder,
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ServiceRpc,
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type SessionMetadata,
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} from "../src/index.ts";
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const clientHello: ClientHello = { type: "hello", version: PROTOCOL_VERSION };
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const serverHello: ServerHello = {
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type: "hello",
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version: PROTOCOL_VERSION,
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serverId: "00000000-0000-4000-8000-000000000001",
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};
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const metadata = {
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id: "session-1",
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createdAt: 1,
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storageVersion: 1,
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cwd: "/workspace",
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parentSessionId: "parent-1",
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} as const satisfies SessionMetadata;
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const laneSnapshot = {
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lane: "main",
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transcript: [],
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leafId: null,
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operation: null,
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queues: { steer: [], followUp: [], nextRun: [] },
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pendingWrites: [],
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faulted: false,
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} satisfies LaneSnapshot;
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const completedRunResult = {
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ok: true,
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value: { kind: "completed", runId: "run-1", leafId: "leaf-1" },
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} as const satisfies RunResult;
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describe("RPC manifest", () => {
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test("creates typed client methods from the manifest", async () => {
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const calls: unknown[] = [];
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const client = createRpcClient(ServiceRpc, async (call) => {
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calls.push(call);
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switch (call.method) {
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case "list":
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return [metadata];
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case "create":
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return metadata;
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case "attach":
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return { sessionId: call.args[0] };
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case "prompt":
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return completedRunResult;
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case "watch":
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return { watchId: "watch-1", snapshot: laneSnapshot };
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case "startWatch":
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case "stopWatch":
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return { watchId: call.args[1] };
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}
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});
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await expect(client.list()).resolves.toEqual([metadata]);
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await expect(client.create({ cwd: "/workspace" })).resolves.toEqual(metadata);
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await expect(client.attach("session-1")).resolves.toEqual({ sessionId: "session-1" });
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await expect(client.prompt("session-1", ["Hello"])).resolves.toEqual(completedRunResult);
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await expect(client.watch("session-1")).resolves.toEqual({ watchId: "watch-1", snapshot: laneSnapshot });
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await expect(client.startWatch("session-1", "watch-1")).resolves.toEqual({ watchId: "watch-1" });
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await expect(client.stopWatch("session-1", "watch-1")).resolves.toEqual({ watchId: "watch-1" });
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expect(calls).toEqual([
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{ method: "list", args: [] },
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{ method: "create", args: [{ cwd: "/workspace" }] },
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{ method: "attach", args: ["session-1"] },
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{ method: "prompt", args: ["session-1", ["Hello"]] },
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{ method: "watch", args: ["session-1"] },
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{ method: "startWatch", args: ["session-1", "watch-1"] },
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{ method: "stopWatch", args: ["session-1", "watch-1"] },
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]);
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});
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test("dispatches only methods and values allowed by the manifest", async () => {
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const dispatch = createRpcDispatcher(ServiceRpc, {
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list: () => [metadata],
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create: () => metadata,
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attach: (_context, sessionId) => ({ sessionId }),
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prompt: () => completedRunResult,
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watch: () => ({ watchId: "watch-1", snapshot: laneSnapshot }),
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startWatch: (_context, _sessionId, watchId) => ({ watchId }),
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stopWatch: (_context, _sessionId, watchId) => ({ watchId }),
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});
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await expect(dispatch({ method: "list", args: [] }, undefined)).resolves.toEqual([metadata]);
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await expect(dispatch({ method: "create", args: [{ cwd: "/workspace" }] }, undefined)).resolves.toEqual(metadata);
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await expect(dispatch({ method: "attach", args: ["session-1"] }, undefined)).resolves.toEqual({
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sessionId: "session-1",
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});
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await expect(dispatch({ method: "prompt", args: ["session-1", ["Hello"]] }, undefined)).resolves.toEqual(
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completedRunResult,
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);
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await expect(dispatch({ method: "watch", args: ["session-1"] }, undefined)).resolves.toEqual({
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watchId: "watch-1",
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snapshot: laneSnapshot,
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});
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await expect(dispatch({ method: "attach", args: [] } as never, undefined)).rejects.toThrow(/Invalid arguments/);
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await expect(dispatch({ method: "prompt", args: ["session-1", []] } as never, undefined)).rejects.toThrow(
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/Invalid arguments/,
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);
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});
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test("rejects invalid results on both client and dispatcher boundaries", async () => {
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const client = createRpcClient(ServiceRpc, async () => ({ sessionId: 1 }));
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await expect(client.attach("session-1")).rejects.toThrow(/Invalid result.*attach/);
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const dispatch = createRpcDispatcher(ServiceRpc, {
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list: () => [{ id: "session-1" }],
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create: () => metadata,
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attach: (_context: undefined, sessionId: string) => ({ sessionId }),
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prompt: () => completedRunResult,
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watch: () => ({ watchId: "watch-1", snapshot: laneSnapshot }),
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startWatch: (_context: undefined, _sessionId: string, watchId: string) => ({ watchId }),
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stopWatch: (_context: undefined, _sessionId: string, watchId: string) => ({ watchId }),
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} as never);
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await expect(dispatch({ method: "list", args: [] }, undefined)).rejects.toThrow(/Invalid result.*list/);
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const invalidPromptClient = createRpcClient(ServiceRpc, async () => ({ ok: true, value: {} }));
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await expect(invalidPromptClient.prompt("session-1", ["Hello"])).rejects.toThrow(/Invalid result.*prompt/);
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});
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test("rejects empty manifests instead of creating unusable RPC clients", () => {
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expect(() => defineRpc({})).toThrow(/at least one method/);
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});
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});
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describe("protocol validation", () => {
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test("negotiates protocol version 1", () => {
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expect(PROTOCOL_VERSION).toBe(1);
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expect(isSupportedProtocolVersion(1)).toBe(true);
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expect(isSupportedProtocolVersion(2)).toBe(false);
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expect(isSupportedProtocolVersion(2.5)).toBe(false);
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});
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test.each([0, PROTOCOL_VERSION, PROTOCOL_VERSION + 1])(
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"accepts integer client hello version %s for negotiation",
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(version) => expect(parseClientMessage({ ...clientHello, version })).toEqual({ ...clientHello, version }),
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);
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test.each([
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{ type: "hello", version: String(PROTOCOL_VERSION) },
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{ type: "hello", version: PROTOCOL_VERSION + 0.5 },
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{ type: "hello", version: PROTOCOL_VERSION, extra: true },
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])("rejects an invalid client hello", (message) => {
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expect(() => parseClientMessage(message)).toThrow(ProtocolValidationError);
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});
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test.each([
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"",
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"server-1",
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"00000000-0000-7000-8000-000000000001",
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"00000000-0000-4000-7000-000000000001",
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"00000000-0000-4000-8000-00000000000A",
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])("rejects non-canonical UUIDv4 server ID %j", (serverId) => {
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expect(() =>
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parseClientMessage({
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type: "request",
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id: "request-1",
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serverId,
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call: { method: "list", args: [] },
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}),
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).toThrow(ProtocolValidationError);
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});
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test("validates service RPC calls with logical targets", () => {
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const list: ClientMessage = {
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type: "request",
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id: "request-1",
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serverId: "00000000-0000-4000-8000-000000000001",
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call: { method: "list", args: [] },
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};
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const create: ClientMessage = {
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type: "request",
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id: "request-2",
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serverId: "00000000-0000-4000-8000-000000000001",
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call: { method: "create", args: [{ cwd: "/workspace" }] },
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};
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const attach: ClientMessage = {
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type: "request",
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id: "request-3",
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serverId: "00000000-0000-4000-8000-000000000001",
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call: { method: "attach", args: ["session-1"] },
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};
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const prompt: ClientMessage = {
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type: "request",
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id: "request-4",
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serverId: "00000000-0000-4000-8000-000000000001",
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call: { method: "prompt", args: ["session-1", ["Hello"]] },
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};
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expect(parseClientMessage(list)).toEqual(list);
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expect(parseClientMessage(create)).toEqual(create);
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expect(parseClientMessage(attach)).toEqual(attach);
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expect(parseClientMessage(prompt)).toEqual(prompt);
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expect(() => parseClientMessage({ ...create, call: { method: "create", args: [{ cwd: "" }] } })).toThrow(
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ProtocolValidationError,
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);
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expect(() => parseClientMessage({ ...attach, call: { method: "attach", args: [] } })).toThrow(
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ProtocolValidationError,
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);
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expect(() => parseClientMessage({ ...attach, call: { method: "unknown", args: [] } })).toThrow(
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ProtocolValidationError,
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);
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expect(() => parseClientMessage({ ...prompt, call: { method: "prompt", args: ["session-1", []] } })).toThrow(
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ProtocolValidationError,
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);
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});
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test("validates recursively nested JSON values", () => {
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const values = [
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null,
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true,
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1,
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"value",
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[1, { nested: [false] }],
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{ nested: { value: "ok" } },
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] satisfies JsonValue[];
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for (const value of values) expect(Check(JsonValueSchema, value)).toBe(true);
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});
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test.each([undefined, 1n, Symbol("value"), () => {}])("rejects non-JSON value %s", (value) => {
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expect(Check(JsonValueSchema, value)).toBe(false);
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});
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test.each([
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["CBOR byte array", decodeCbor(encodeCbor(new Uint8Array([1, 2, 3])))],
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["date", new Date(0)],
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["map", new Map([["key", "value"]])],
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["class instance", new (class JsonValueTestClass {})()],
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["nested class instance", { nested: new (class JsonValueTestClass {})() }],
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] as const)("rejects non-plain JSON value: %s", (_label, value) => {
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expect(Check(JsonValueSchema, value)).toBe(false);
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});
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test("rejects cyclic JSON values", () => {
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const value: { self?: unknown } = {};
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value.self = value;
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expect(Check(JsonValueSchema, value)).toBe(false);
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});
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test.each([
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["text", ["Hello"]],
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["text and images", ["Describe", [{ type: "image", data: "aW1hZ2U=", mimeType: "image/png" }]]],
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["one message", [{ role: "user", content: "Hello", timestamp: 1 }]],
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[
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"multiple messages",
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[
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[
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{ role: "user", content: "Question", timestamp: 1 },
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{
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role: "assistant",
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content: [{ type: "text", text: "Answer" }],
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api: "test",
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provider: "test",
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model: "test",
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usage: {
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input: 1,
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output: 1,
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cacheRead: 0,
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cacheWrite: 0,
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totalTokens: 2,
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cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0, total: 0 },
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},
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stopReason: "stop",
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timestamp: 2,
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},
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],
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],
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],
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] as const)("validates %s prompt arguments", (_label, promptArguments) => {
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expect(Check(PromptArgumentsSchema, promptArguments)).toBe(true);
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});
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test.each([
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["empty prompt tuple", []],
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["missing image data", ["Describe", [{ type: "image", mimeType: "image/png" }]]],
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["unknown message role", [{ role: "extension", content: "Hello", timestamp: 1 }]],
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["extra text argument", ["Hello", [], "extra"]],
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] as const)("rejects malformed prompt arguments: %s", (_label, promptArguments) => {
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expect(Check(PromptArgumentsSchema, promptArguments)).toBe(false);
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});
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test("validates protocol Session metadata", () => {
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const message: ServerMessage = {
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type: "response",
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id: "request-1",
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ok: true,
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result: [metadata],
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};
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expect(parseServerMessage(message)).toEqual(message);
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expect(() => parseServerMessage({ ...message, result: [{ id: "session-1", createdAt: 1 }] })).toThrow(
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ProtocolValidationError,
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);
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});
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test("validates lane watch snapshots and events", () => {
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const snapshotMessage: ServerMessage = {
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type: "response",
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id: "request-1",
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ok: true,
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result: { watchId: "watch-1", snapshot: laneSnapshot },
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};
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const eventMessage: ServerMessage = {
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type: "event",
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watchId: "watch-1",
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event: { type: "run_start", lane: "main", runId: "run-1" },
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};
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expect(parseServerMessage(snapshotMessage)).toEqual(snapshotMessage);
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expect(parseServerMessage(eventMessage)).toEqual(eventMessage);
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expect(
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parseServerMessage({
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type: "event",
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watchId: "watch-1",
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event: {
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type: "message_update",
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lane: "main",
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runId: "run-1",
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frame: { type: "text_delta", contentIndex: 0, delta: "hello" },
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},
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}),
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).toMatchObject({ event: { frame: { delta: "hello" } } });
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expect(() => parseServerMessage({ ...eventMessage, event: { ...eventMessage.event, unknown: true } })).toThrow(
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ProtocolValidationError,
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);
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expect(() =>
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parseServerMessage({
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type: "event",
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watchId: "watch-1",
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event: {
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type: "run_end",
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lane: "main",
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runId: "run-1",
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leafId: "leaf-1",
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outcome: "completed",
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finalEntryId: "entry-1",
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},
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}),
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).toThrow(ProtocolValidationError);
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});
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test("validates attach results", () => {
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const message: ServerMessage = {
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type: "response",
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id: "request-1",
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ok: true,
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result: { sessionId: "session-1" },
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};
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expect(parseServerMessage(message)).toEqual(message);
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});
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test.each([
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{ ok: true, value: { kind: "completed", runId: "run-1", leafId: "leaf-1" } },
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{ ok: true, value: { kind: "aborted", runId: "run-1", leafId: "leaf-1" } },
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{
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ok: true,
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value: {
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kind: "failed",
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runId: "run-1",
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leafId: "leaf-1",
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error: { code: "provider", message: "provider failed" },
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},
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},
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{
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ok: true,
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value: {
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kind: "suspended",
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reason: "missing_identities",
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runId: "run-1",
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leafId: "leaf-1",
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missing: { tools: ["tool"], models: [] },
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},
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},
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{
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ok: false,
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|
error: {
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_tag: "LaneBusy",
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lane: "main",
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operationId: "operation-1",
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operationKind: "run",
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message: "lane busy",
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},
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},
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{ ok: false, error: { _tag: "Closed", message: "closed" } },
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] satisfies RunResult[])("validates structural Harness RunResult", (result) => {
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expect(Check(RunResultSchema, result)).toBe(true);
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});
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|
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|
test.each([
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{ ok: true, value: { kind: "failed", runId: "run-1", leafId: "leaf-1" } },
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{ ok: true, value: { kind: "completed", runId: "run-1", leafId: "leaf-1", finalEntryId: "entry-1" } },
|
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{ ok: false, error: { _tag: "Closed", message: "closed", extra: true } },
|
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] as const)("rejects malformed structural Harness RunResult", (result) => {
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expect(Check(RunResultSchema, result)).toBe(false);
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});
|
|
|
|
test.each([
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["bigint", 1n],
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["byte array", new Uint8Array([1, 2, 3])],
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["date", new Date(0)],
|
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] as const)("rejects non-protocol %s nested in Harness DTOs", (_label, details) => {
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expect(
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Check(RunResultSchema, {
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ok: true,
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value: {
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kind: "failed",
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runId: "run-1",
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leafId: "leaf-1",
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error: { code: "provider", message: "failed", details },
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},
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}),
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).toBe(false);
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});
|
|
|
|
test.each([
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|
[
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"empty request id",
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|
{
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type: "request",
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id: "",
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|
serverId: "00000000-0000-4000-8000-000000000001",
|
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call: { method: "list", args: [] },
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|
},
|
|
],
|
|
[
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"empty session id",
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|
{
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|
type: "request",
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id: "request-1",
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serverId: "00000000-0000-4000-8000-000000000001",
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call: { method: "attach", args: [""] },
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},
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],
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|
[
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"extra call field",
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{
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type: "request",
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id: "request-1",
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serverId: "00000000-0000-4000-8000-000000000001",
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call: { method: "list", args: [], extra: true },
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},
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],
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] as const)("rejects malformed request boundaries: %s", (_label, message) => {
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expect(() => parseClientMessage(message)).toThrow(ProtocolValidationError);
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});
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|
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test.each([
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["invalid server id", { ...serverHello, serverId: "server-1" }],
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|
["missing response result", { type: "response", id: "request-1", ok: true }],
|
|
["extra response field", { type: "response", id: "request-1", ok: true, result: [], extra: true }],
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|
] as const)("rejects malformed server boundaries: %s", (_label, message) => {
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expect(() => parseServerMessage(message)).toThrow(ProtocolValidationError);
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});
|
|
|
|
test.each([
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"wrong_server",
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"session_not_found",
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"session_in_use",
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"session_not_attached",
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"watch_not_found",
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|
"watch_in_use",
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"not_supported",
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"server_draining",
|
|
"internal_error",
|
|
] as const)("accepts the %s error code", (code) => {
|
|
const message: ServerMessage = {
|
|
type: "response",
|
|
id: "request-1",
|
|
ok: false,
|
|
error: { code, message: "safe" },
|
|
};
|
|
expect(parseServerMessage(message)).toEqual(message);
|
|
});
|
|
|
|
test("rejects unknown messages and fields", () => {
|
|
expect(() => parseServerMessage({ ...serverHello, snapshot: {} })).toThrow(ProtocolValidationError);
|
|
expect(() => parseServerMessage({ type: "event", event: {} })).toThrow(ProtocolValidationError);
|
|
});
|
|
|
|
test("does not parse JSON strings as messages", () => {
|
|
expect(() => parseClientMessage(JSON.stringify(clientHello))).toThrow(ProtocolValidationError);
|
|
expect(() => parseServerMessage(JSON.stringify(serverHello))).toThrow(ProtocolValidationError);
|
|
});
|
|
});
|
|
|
|
describe("validated framed protocol APIs", () => {
|
|
test("encodes complete client and server frames", () => {
|
|
const clientFrames = new FrameDecoder().push(encodeClientMessage(clientHello));
|
|
expect(parseClientMessage(decodeCbor(clientFrames[0]!))).toEqual(clientHello);
|
|
const serverFrames = new FrameDecoder().push(encodeServerMessage(serverHello));
|
|
expect(parseServerMessage(decodeCbor(serverFrames[0]!))).toEqual(serverHello);
|
|
});
|
|
|
|
test("enforces outbound frame limits", () => {
|
|
expect(() => encodeClientMessage(clientHello, { maxFrameLength: 8 })).toThrow(ProtocolValidationError);
|
|
expect(() => encodeServerMessage(serverHello, { maxFrameLength: 8 })).toThrow(ProtocolValidationError);
|
|
});
|
|
|
|
test("incrementally decodes fragmented and coalesced client messages", () => {
|
|
const request: ClientMessage = {
|
|
type: "request",
|
|
id: "request-1",
|
|
serverId: "00000000-0000-4000-8000-000000000001",
|
|
call: { method: "list", args: [] },
|
|
};
|
|
const first = encodeClientMessage(clientHello);
|
|
const second = encodeClientMessage(request);
|
|
const wire = new Uint8Array(first.byteLength + second.byteLength);
|
|
wire.set(first);
|
|
wire.set(second, first.byteLength);
|
|
|
|
for (let split = 0; split <= wire.byteLength; split++) {
|
|
const decoder = new ClientMessageDecoder();
|
|
const messages = [...decoder.push(wire.subarray(0, split)), ...decoder.push(wire.subarray(split))];
|
|
decoder.end();
|
|
expect(messages).toEqual([clientHello, request]);
|
|
}
|
|
});
|
|
|
|
test("incrementally decodes fragmented and coalesced server messages", () => {
|
|
const response: ServerMessage = { type: "response", id: "request-1", ok: true, result: [] };
|
|
const first = encodeServerMessage(serverHello);
|
|
const second = encodeServerMessage(response);
|
|
const wire = new Uint8Array(first.byteLength + second.byteLength);
|
|
wire.set(first);
|
|
wire.set(second, first.byteLength);
|
|
|
|
const split = first.byteLength + Math.floor(second.byteLength / 2);
|
|
const decoder = new ServerMessageDecoder();
|
|
expect(decoder.push(wire.subarray(0, split))).toEqual([serverHello]);
|
|
expect(decoder.push(wire.subarray(split))).toEqual([response]);
|
|
decoder.end();
|
|
});
|
|
|
|
test.each([
|
|
["empty CBOR payload", encodeFrame(new Uint8Array())],
|
|
["malformed CBOR", encodeFrame(new Uint8Array([0xff]))],
|
|
["schema-invalid CBOR", encodeFrame(encodeCbor({ type: "hello", version: 1, extra: true }))],
|
|
] as const)("rejects invalid framed input: %s", (_label, wire) => {
|
|
const decoder = new ClientMessageDecoder();
|
|
expect(() => decoder.push(wire)).toThrow(ProtocolValidationError);
|
|
expect(() => decoder.push(encodeClientMessage(clientHello))).toThrow(/failed/i);
|
|
});
|
|
|
|
test("rejects truncated and oversized framing", () => {
|
|
const truncated = new ServerMessageDecoder();
|
|
expect(truncated.push(new Uint8Array([0, 0, 0, 2, 1]))).toEqual([]);
|
|
expect(() => truncated.end()).toThrow(ProtocolValidationError);
|
|
const oversized = new ClientMessageDecoder({ maxFrameLength: 3 });
|
|
expect(() => oversized.push(new Uint8Array([0, 0, 0, 4]))).toThrow(ProtocolValidationError);
|
|
});
|
|
});
|