1 files changed, 106 insertions, 0 deletions
diff --git a/packages/api/tests/routes.test.ts b/packages/api/tests/routes.test.ts
new file mode 100644
index 0000000..d5384b3
--- /dev/null
+++ b/packages/api/tests/routes.test.ts
@@ -0,0 +1,106 @@
+import { describe, expect, it, vi } from "vitest";
+
+// Mock @dispatch/core's Agent to avoid real LLM calls
+vi.mock("@dispatch/core", async () => {
+	const actual = await vi.importActual<typeof import("@dispatch/core")>("@dispatch/core");
+	return {
+		...actual,
+		Agent: class MockAgent {
+			status = "idle";
+			messages: unknown[] = [];
+			async *run(_message: string) {
+				yield { type: "status", status: "running" } as const;
+				// Simulate some processing time so status stays "running"
+				await new Promise<void>((r) => setTimeout(r, 100));
+				yield { type: "text-delta", delta: "Hello " } as const;
+				yield { type: "text-delta", delta: "world" } as const;
+				yield {
+					type: "done",
+					message: { role: "assistant", content: "Hello world" },
+				} as const;
+				yield { type: "status", status: "idle" } as const;
+			}
+		},
+	};
+});
+
+const { app } = await import("../src/app.js");
+
+describe("GET /health", () => {
+	it("returns 200 with ok: true", async () => {
+		const res = await app.request("/health");
+		expect(res.status).toBe(200);
+		const body = await res.json();
+		expect(body).toEqual({ ok: true });
+	});
+});
+
+describe("GET /status", () => {
+	it("returns idle status initially", async () => {
+		const res = await app.request("/status");
+		expect(res.status).toBe(200);
+		const body = await res.json();
+		expect(body.status).toBe("idle");
+		expect(typeof body.messageCount).toBe("number");
+	});
+});
+
+describe("POST /chat", () => {
+	it("returns 200 with valid message", async () => {
+		const res = await app.request("/chat", {
+			method: "POST",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ message: "hello world" }),
+		});
+		expect(res.status).toBe(200);
+		const body = await res.json();
+		expect(body).toEqual({ status: "ok" });
+	});
+
+	it("returns 400 with empty message", async () => {
+		const res = await app.request("/chat", {
+			method: "POST",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ message: "" }),
+		});
+		expect(res.status).toBe(400);
+	});
+
+	it("returns 400 with whitespace-only message", async () => {
+		const res = await app.request("/chat", {
+			method: "POST",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ message: "   " }),
+		});
+		expect(res.status).toBe(400);
+	});
+
+	it("returns 400 with missing message field", async () => {
+		const res = await app.request("/chat", {
+			method: "POST",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({}),
+		});
+		expect(res.status).toBe(400);
+	});
+
+	it("returns 409 when agent is already running", async () => {
+		// Start a message (non-blocking)
+		await app.request("/chat", {
+			method: "POST",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ message: "first message" }),
+		});
+
+		// Small delay to let the async generator start and emit "running" status
+		await new Promise<void>((r) => setTimeout(r, 20));
+
+		// Immediately send a second — agent should be running
+		const res = await app.request("/chat", {
+			method: "POST",
+			headers: { "Content-Type": "application/json" },
+			body: JSON.stringify({ message: "second message" }),
+		});
+		expect(res.status).toBe(409);
+	});
+});