Phase 1: Testing foundation (schemas, utils, turbo test:unit)

.github/workflows/ci.yml

@@ -39,3 +39,15 @@ jobs:
 
       - name: Type check
         run: bun check:types
+
+  test-unit:
+    name: Unit Tests
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./tooling/github/setup
+
+      - name: Unit tests
+        run: bun test:unit

apps/server/package.json

@@ -5,6 +5,7 @@
   "scripts": {
     "dev": "wrangler dev",
     "check:types": "tsc --noEmit",
+    "test:unit": "bun test",
     "db:push": "dotenvx run -- drizzle-kit push",
     "db:generate": "dotenvx run -- drizzle-kit generate",
     "wrangler:types": "wrangler types --cwd src",

apps/server/src/handlers/signaling.test.ts

@@ -0,0 +1,61 @@
+import { describe, expect, test } from "bun:test";
+import type { ServerEvent } from "@cyrus/schemas/signaling";
+import { broadcastSignalingEvent, type SignalingWS } from "./signaling";
+
+function connection(
+	id: string,
+	eventId: string | null,
+	sent: unknown[]
+): SignalingWS {
+	return {
+		deserializeAttachment: <T = unknown>() =>
+			(eventId ? { eventId, name: id, role: "worker" } : null) as T | null,
+		id,
+		send: (data) => sent.push(data),
+		serializeAttachment: () => undefined,
+	};
+}
+
+describe("broadcastSignalingEvent", () => {
+	test("sends encoded hibernation events to peers with event iterators", () => {
+		const sent: unknown[] = [];
+		const event: ServerEvent = {
+			id: "worker-left",
+			type: "peer-left",
+		};
+
+		broadcastSignalingEvent(
+			[
+				connection("controller-1", "event-controller", sent),
+				connection("worker-1", "event-worker", sent),
+			],
+			event
+		);
+
+		expect(sent).toHaveLength(2);
+		expect(sent.every((payload) => typeof payload === "string")).toBe(true);
+	});
+
+	test("skips excluded peers and peers without attachments", () => {
+		const sent: unknown[] = [];
+
+		broadcastSignalingEvent(
+			[
+				connection("controller-1", "event-controller", sent),
+				connection("worker-1", "event-worker", sent),
+				connection("joining-peer", null, sent),
+			],
+			{
+				peer: {
+					id: "worker-2",
+					name: "Worker 2",
+					role: "worker",
+				},
+				type: "peer-joined",
+			},
+			["controller-1"]
+		);
+
+		expect(sent).toHaveLength(1);
+	});
+});

docs/testing.md

@@ -0,0 +1,42 @@
+# Testing Strategy
+
+Cyrus uses a layered test setup so each part of the system is tested with the
+runtime closest to production.
+
+## Runners
+
+| Scope | Runner | Location |
+| --- | --- | --- |
+| Pure TypeScript, schemas, CLI, database, process tests | Bun test | Colocated `*.test.ts` or package `__tests__/integration/` |
+| React hooks, providers, Cloudflare Workers runtime | Vitest | Package-local `vitest.config.ts` |
+| Browser user flows | Playwright | Root `tests/e2e/web/` |
+
+Bun test is the default. Use Vitest when the package needs a browser-like React
+test environment or the Cloudflare Workers test pool.
+
+## Layout
+
+```text
+<package>/src/**/*.test.ts
+<package>/__tests__/integration/
+tests/e2e/harness/
+tests/e2e/scenarios/
+tests/e2e/web/
+tooling/test/
+```
+
+Unit tests stay close to the code they cover. Integration tests live under the
+package boundary they exercise. Cross-app tests live at the repo root.
+
+## CI Levels
+
+| Level | Trigger | Tests |
+| --- | --- | --- |
+| 0 | pre-commit | Ultracite only |
+| 1 | pre-push | Typecheck now; unit tests once stable |
+| 2 | pull request | Lint, typecheck, unit tests |
+| 3 | main or nightly | Integration and E2E |
+| 4 | deploy | Health and WebSocket smoke |
+
+Phase 1 only adds the unit test foundation. Integration and E2E are introduced
+in later phases.

package.json

@@ -35,6 +35,10 @@
     "dev": "turbo dev",
     "build": "turbo build",
     "check:types": "turbo check:types",
+    "test": "turbo test:unit test:integration",
+    "test:unit": "turbo test:unit",
+    "test:integration": "turbo test:integration",
+    "test:e2e": "turbo test:e2e",
     "dev:mobile": "turbo -F @cyrus/mobile dev",
     "dev:web": "turbo -F @cyrus/web dev",
     "dev:desktop": "turbo -F @cyrus/desktop dev",

shared/constants/package.json

@@ -7,10 +7,12 @@
     "./*": "./src/*.ts"
   },
   "scripts": {
-    "check:types": "tsc --noEmit"
+    "check:types": "tsc --noEmit",
+    "test:unit": "bun test"
   },
   "devDependencies": {
     "@cyrus/typescript": "workspace:*",
+    "@types/bun": "catalog:",
     "typescript": "catalog:"
   }
 }

shared/constants/src/operation-keys.test.ts

@@ -0,0 +1,45 @@
+import { describe, expect, test } from "bun:test";
+import {
+	AUTH_OPERATION_KEYS,
+	RTC_OPERATION_KEYS,
+	SIGNALING_OPERATION_KEYS,
+} from "./operation-keys";
+
+describe("operation keys", () => {
+	test("builds stable signaling keys", () => {
+		expect(SIGNALING_OPERATION_KEYS.connection("user-1")).toEqual([
+			"signaling",
+			"user-1",
+		]);
+		expect(SIGNALING_OPERATION_KEYS.listPeers).toEqual([
+			"signaling",
+			"list-peers",
+		]);
+	});
+
+	test("builds stable RTC keys", () => {
+		expect(RTC_OPERATION_KEYS.connection("worker-1")).toEqual([
+			"controller",
+			"worker-1",
+		]);
+		expect(RTC_OPERATION_KEYS.listThreads("project-1")).toEqual([
+			"controller",
+			"list-threads",
+			"project-1",
+		]);
+		expect(RTC_OPERATION_KEYS.listDir("/tmp/cyrus", 2)).toEqual([
+			"controller",
+			"list-dir",
+			"/tmp/cyrus",
+			2,
+		]);
+	});
+
+	test("keeps auth keys stable", () => {
+		expect(AUTH_OPERATION_KEYS.deviceDecide).toEqual([
+			"auth",
+			"device",
+			"decide",
+		]);
+	});
+});

shared/constants/tsconfig.json

@@ -1,7 +1,7 @@
 {
   "extends": "@cyrus/typescript/tsconfig.base.json",
   "compilerOptions": {
-    "types": [],
+    "types": ["bun"],
     "strictNullChecks": true
   },
   "include": ["src/**/*.ts"],

shared/schemas/package.json

@@ -9,10 +9,14 @@
     "./rtc/*": "./src/rtc/*.ts",
     "./signaling": "./src/signaling.ts"
   },
+  "scripts": {
+    "test:unit": "bun test"
+  },
   "dependencies": {
     "zod": "catalog:"
   },
   "devDependencies": {
-    "@cyrus/typescript": "workspace:*"
+    "@cyrus/typescript": "workspace:*",
+    "@types/bun": "catalog:"
   }
 }

shared/schemas/src/rtc/chat.test.ts

@@ -0,0 +1,100 @@
+import { describe, expect, test } from "bun:test";
+import {
+	AgentEventSchema,
+	ChatChunkSchema,
+	ChatInputSchema,
+	ToolCallContentSchema,
+} from "./chat";
+
+describe("chat schemas", () => {
+	test("parses a valid chat request", () => {
+		expect(
+			ChatInputSchema.parse({
+				agentName: "claude",
+				message: "hello",
+				projectId: "project-1",
+				threadId: "00000000-0000-4000-8000-000000000001",
+				turnId: "00000000-0000-4000-8000-000000000002",
+			})
+		).toMatchObject({
+			agentName: "claude",
+			message: "hello",
+			projectId: "project-1",
+		});
+	});
+
+	test("rejects non-uuid optional chat identifiers", () => {
+		expect(() =>
+			ChatInputSchema.parse({
+				agentName: "claude",
+				message: "hello",
+				projectId: "project-1",
+				threadId: "not-a-uuid",
+			})
+		).toThrow();
+	});
+
+	test("parses representative agent events", () => {
+		expect(
+			AgentEventSchema.parse({
+				type: "tool_call",
+				toolCallId: "tool-1",
+				title: "Read file",
+				kind: "read",
+				status: "in_progress",
+				content: [
+					{
+						type: "content",
+						content: { type: "text", text: "reading package.json" },
+					},
+				],
+			})
+		).toMatchObject({
+			type: "tool_call",
+			toolCallId: "tool-1",
+			kind: "read",
+		});
+
+		expect(
+			AgentEventSchema.parse({
+				type: "plan_update",
+				plan: {
+					type: "items",
+					id: "plan-1",
+					entries: [
+						{
+							content: "Write schema tests",
+							priority: "high",
+							status: "completed",
+						},
+					],
+				},
+			})
+		).toMatchObject({ type: "plan_update" });
+	});
+
+	test("parses chat chunks with nested events", () => {
+		expect(
+			ChatChunkSchema.parse({
+				threadId: "thread-1",
+				turnId: "turn-1",
+				seq: 1,
+				event: { type: "token", text: "hello", messageId: "message-1" },
+			})
+		).toEqual({
+			threadId: "thread-1",
+			turnId: "turn-1",
+			seq: 1,
+			event: { type: "token", text: "hello", messageId: "message-1" },
+		});
+	});
+
+	test("rejects unknown tool content types", () => {
+		expect(() =>
+			ToolCallContentSchema.parse({
+				type: "unknown",
+				content: { type: "text", text: "nope" },
+			})
+		).toThrow();
+	});
+});