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/**
* @vitest-environment jsdom
*/
import { act, renderHook, waitFor } from "@testing-library/react";
import type { ReactNode } from "react";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import { apiClient } from "../api/client";
import { AuthProvider, useAuth } from "./auth";
// Mock the apiClient
vi.mock("../api/client", () => ({
apiClient: {
login: vi.fn(),
register: vi.fn(),
logout: vi.fn(),
isAuthenticated: vi.fn(),
getTokens: vi.fn(),
},
ApiClientError: class ApiClientError extends Error {
constructor(
message: string,
public status: number,
public code?: string,
) {
super(message);
this.name = "ApiClientError";
}
},
}));
const wrapper = ({ children }: { children: ReactNode }) => (
<AuthProvider>{children}</AuthProvider>
);
describe("useAuth", () => {
beforeEach(() => {
vi.clearAllMocks();
vi.mocked(apiClient.getTokens).mockReturnValue(null);
vi.mocked(apiClient.isAuthenticated).mockReturnValue(false);
});
afterEach(() => {
vi.restoreAllMocks();
});
it("throws error when used outside AuthProvider", () => {
// Suppress console.error for this test
const consoleSpy = vi.spyOn(console, "error").mockImplementation(() => {});
expect(() => {
renderHook(() => useAuth());
}).toThrow("useAuth must be used within an AuthProvider");
consoleSpy.mockRestore();
});
it("returns initial unauthenticated state", async () => {
const { result } = renderHook(() => useAuth(), { wrapper });
await waitFor(() => {
expect(result.current.isLoading).toBe(false);
});
expect(result.current.user).toBeNull();
expect(result.current.isAuthenticated).toBe(false);
});
it("returns authenticated state when tokens exist", async () => {
vi.mocked(apiClient.getTokens).mockReturnValue({
accessToken: "test-access-token",
refreshToken: "test-refresh-token",
});
vi.mocked(apiClient.isAuthenticated).mockReturnValue(true);
const { result } = renderHook(() => useAuth(), { wrapper });
await waitFor(() => {
expect(result.current.isLoading).toBe(false);
});
expect(result.current.isAuthenticated).toBe(true);
});
describe("login", () => {
it("logs in and sets user", async () => {
const mockUser = { id: "user-1", username: "testuser" };
vi.mocked(apiClient.login).mockResolvedValue({
accessToken: "access-token",
refreshToken: "refresh-token",
user: mockUser,
});
vi.mocked(apiClient.isAuthenticated).mockReturnValue(true);
const { result } = renderHook(() => useAuth(), { wrapper });
await waitFor(() => {
expect(result.current.isLoading).toBe(false);
});
await act(async () => {
await result.current.login("testuser", "password123");
});
expect(apiClient.login).toHaveBeenCalledWith("testuser", "password123");
expect(result.current.user).toEqual(mockUser);
});
it("propagates login errors", async () => {
vi.mocked(apiClient.login).mockRejectedValue(
new Error("Invalid credentials"),
);
const { result } = renderHook(() => useAuth(), { wrapper });
await waitFor(() => {
expect(result.current.isLoading).toBe(false);
});
await expect(
act(async () => {
await result.current.login("testuser", "wrongpassword");
}),
).rejects.toThrow("Invalid credentials");
});
});
describe("register", () => {
it("registers and logs in automatically", async () => {
const mockUser = { id: "user-1", username: "newuser" };
vi.mocked(apiClient.register).mockResolvedValue({ user: mockUser });
vi.mocked(apiClient.login).mockResolvedValue({
accessToken: "access-token",
refreshToken: "refresh-token",
user: mockUser,
});
vi.mocked(apiClient.isAuthenticated).mockReturnValue(true);
const { result } = renderHook(() => useAuth(), { wrapper });
await waitFor(() => {
expect(result.current.isLoading).toBe(false);
});
await act(async () => {
await result.current.register("newuser", "password123");
});
expect(apiClient.register).toHaveBeenCalledWith("newuser", "password123");
expect(apiClient.login).toHaveBeenCalledWith("newuser", "password123");
expect(result.current.user).toEqual(mockUser);
});
it("propagates registration errors", async () => {
vi.mocked(apiClient.register).mockRejectedValue(
new Error("Username taken"),
);
const { result } = renderHook(() => useAuth(), { wrapper });
await waitFor(() => {
expect(result.current.isLoading).toBe(false);
});
await expect(
act(async () => {
await result.current.register("existinguser", "password123");
}),
).rejects.toThrow("Username taken");
});
});
describe("logout", () => {
it("logs out and clears user", async () => {
const mockUser = { id: "user-1", username: "testuser" };
vi.mocked(apiClient.login).mockResolvedValue({
accessToken: "access-token",
refreshToken: "refresh-token",
user: mockUser,
});
vi.mocked(apiClient.isAuthenticated).mockReturnValue(true);
const { result } = renderHook(() => useAuth(), { wrapper });
await waitFor(() => {
expect(result.current.isLoading).toBe(false);
});
// Login first
await act(async () => {
await result.current.login("testuser", "password123");
});
expect(result.current.user).toEqual(mockUser);
// Now logout
vi.mocked(apiClient.isAuthenticated).mockReturnValue(false);
act(() => {
result.current.logout();
});
expect(apiClient.logout).toHaveBeenCalled();
expect(result.current.user).toBeNull();
});
});
});
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