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import { Hono } from "hono";
import { beforeEach, describe, expect, it, vi } from "vitest";
import { errorHandler } from "../middleware";
import { auth } from "./auth";
vi.mock("../db", () => {
const mockUsers: Array<{
id: string;
username: string;
passwordHash: string;
createdAt: Date;
}> = [];
return {
db: {
select: vi.fn(() => ({
from: vi.fn(() => ({
where: vi.fn(() => ({
limit: vi.fn(() =>
Promise.resolve(
mockUsers.filter((u) => u.username === "existinguser"),
),
),
})),
})),
})),
insert: vi.fn(() => ({
values: vi.fn((data: { username: string; passwordHash: string }) => ({
returning: vi.fn(() => {
const newUser = {
id: "test-uuid-123",
username: data.username,
createdAt: new Date("2024-01-01T00:00:00Z"),
};
mockUsers.push({ ...newUser, passwordHash: data.passwordHash });
return Promise.resolve([newUser]);
}),
})),
})),
},
users: {
id: "id",
username: "username",
createdAt: "created_at",
},
};
});
vi.mock("argon2", () => ({
hash: vi.fn((password: string) => Promise.resolve(`hashed_${password}`)),
}));
interface RegisterResponse {
user?: {
id: string;
username: string;
createdAt: string;
};
error?: {
code: string;
message: string;
};
}
describe("POST /register", () => {
let app: Hono;
beforeEach(() => {
vi.clearAllMocks();
app = new Hono();
app.onError(errorHandler);
app.route("/api/auth", auth);
});
it("creates a new user with valid credentials", async () => {
const res = await app.request("/api/auth/register", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
username: "testuser",
password: "securepassword12345",
}),
});
expect(res.status).toBe(201);
const body = (await res.json()) as RegisterResponse;
expect(body.user).toEqual({
id: "test-uuid-123",
username: "testuser",
createdAt: "2024-01-01T00:00:00.000Z",
});
});
it("returns 422 for invalid username", async () => {
const res = await app.request("/api/auth/register", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
username: "",
password: "securepassword12345",
}),
});
expect(res.status).toBe(422);
const body = (await res.json()) as RegisterResponse;
expect(body.error?.code).toBe("VALIDATION_ERROR");
});
it("returns 422 for password too short", async () => {
const res = await app.request("/api/auth/register", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
username: "testuser",
password: "tooshort123456",
}),
});
expect(res.status).toBe(422);
const body = (await res.json()) as RegisterResponse;
expect(body.error?.code).toBe("VALIDATION_ERROR");
});
it("returns 409 for existing username", async () => {
const { db } = await import("../db");
// eslint-disable-next-line @typescript-eslint/no-explicit-any
vi.mocked(db.select).mockReturnValueOnce({
from: vi.fn().mockReturnValue({
where: vi.fn().mockReturnValue({
limit: vi.fn().mockResolvedValue([{ id: "existing-id" }]),
}),
}),
} as unknown as ReturnType<typeof db.select>);
const res = await app.request("/api/auth/register", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
username: "existinguser",
password: "securepassword12345",
}),
});
expect(res.status).toBe(409);
const body = (await res.json()) as RegisterResponse;
expect(body.error?.code).toBe("USERNAME_EXISTS");
});
});
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