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* Test utilities for API route testing
* Provides helpers for creating mock requests, responses, and sessions
*/
import { NextRequest, NextResponse } from "next/server";
/**
* Create a mock NextRequest for API testing
*/
export function createMockRequest(
method: string,
url: string,
options: {
body?: unknown;
rawBody?: string;
headers?: Record<string, string>;
searchParams?: Record<string, string>;
} = {}
): NextRequest {
const { body, rawBody, headers = {}, searchParams = {} } = options;
// Build URL with search params
const urlObj = new URL(url, "http://localhost:3000");
Object.entries(searchParams).forEach(([key, value]) => {
urlObj.searchParams.set(key, value);
});
const requestInit = {
method,
headers: {
"Content-Type": "application/json",
...headers
}
} as { method: string; headers: Record<string, string>; body?: string };
if (method !== "GET") {
if (rawBody !== undefined) {
// Use raw body string directly (for testing invalid JSON)
requestInit.body = rawBody;
} else if (body) {
requestInit.body = JSON.stringify(body);
}
}
return new NextRequest(urlObj, requestInit);
}
/**
* Generic API response type for tests
*/
// eslint-disable-next-line @typescript-eslint/no-explicit-any
export type ApiResponse = Record<string, any>;
/**
* Parse JSON response from NextResponse
*/
export async function parseJsonResponse<T = ApiResponse>(
response: Response
): Promise<T> {
return response.json() as Promise<T>;
}
/**
* Mock session data for authenticated requests
* Note: id is numeric to match the next-auth configuration in this project
*/
export const mockUserSession = {
user: {
id: 1,
email: "test@example.com",
name: "Test User",
role: "USER" as const
},
expires: new Date(Date.now() + 24 * 60 * 60 * 1000).toISOString()
};
export const mockAdminSession = {
user: {
id: 2,
email: "admin@example.com",
name: "Admin User",
role: "ADMIN" as const
},
expires: new Date(Date.now() + 24 * 60 * 60 * 1000).toISOString()
};
/**
* Mock Prisma client for testing
* Use jest.mock('@/lib/prisma') in your test file and then
* import this to set up return values
*/
export const createMockPrismaClient = () => ({
user: {
findUnique: jest.fn(),
findMany: jest.fn(),
create: jest.fn(),
update: jest.fn(),
delete: jest.fn(),
count: jest.fn()
},
product: {
findUnique: jest.fn(),
findMany: jest.fn(),
create: jest.fn(),
update: jest.fn(),
delete: jest.fn(),
count: jest.fn()
},
cart: {
findUnique: jest.fn(),
findMany: jest.fn(),
create: jest.fn(),
update: jest.fn(),
delete: jest.fn(),
deleteMany: jest.fn()
},
order: {
findUnique: jest.fn(),
findMany: jest.fn(),
create: jest.fn(),
update: jest.fn(),
count: jest.fn()
},
orderItem: {
createMany: jest.fn()
},
category: {
findUnique: jest.fn(),
findMany: jest.fn(),
create: jest.fn(),
update: jest.fn(),
delete: jest.fn()
},
review: {
findMany: jest.fn(),
create: jest.fn(),
delete: jest.fn()
},
wishlist: {
findUnique: jest.fn(),
findMany: jest.fn(),
create: jest.fn(),
delete: jest.fn()
},
$transaction: jest.fn((fn) => fn({
user: { findUnique: jest.fn(), create: jest.fn() },
cart: { deleteMany: jest.fn() },
order: { create: jest.fn() },
orderItem: { createMany: jest.fn() }
}))
});
/**
* Create mock auth utilities
* Reduces boilerplate for authentication-related mocks
*/
export const createMockAuthUtils = (options: {
isAuthenticated?: boolean;
isAdmin?: boolean;
userId?: string;
} = {}) => {
const { isAuthenticated = false, isAdmin = false, userId = "user-123" } = options;
return {
requireAuth: jest.fn().mockResolvedValue(
isAuthenticated
? { id: userId, email: "test@example.com", role: isAdmin ? "ADMIN" : "USER" }
: Promise.reject(new Error("Unauthorized"))
),
requireAdminRole: jest.fn().mockResolvedValue(
isAdmin
? { id: userId, email: "admin@example.com", role: "ADMIN" }
: Promise.reject(new Error("Admin access required"))
),
handleAuthError: jest.fn((error) => {
if (error.message === "Unauthorized" || error.message === "Admin access required") {
return NextResponse.json(
{ error: error.message },
{ status: error.message === "Unauthorized" ? 401 : 403 }
);
}
return null;
})
};
};
/**
* Create mock security headers
* Standard mock for security-headers module
*/
export const createMockSecurityHeaders = () => ({
addSecurityHeaders: jest.fn((response) => response)
});
/**
* Setup common mocks for API tests
* Call this in beforeEach to reset mocks and set common behaviors
*/
export const setupApiTestMocks = (prisma: ReturnType<typeof createMockPrismaClient>) => {
// Clear all mocks
Object.values(prisma).forEach((model) => {
if (typeof model === "object" && model !== null) {
Object.values(model).forEach((method) => {
if (typeof method === "function" && "mockReset" in method) {
(method as jest.Mock).mockReset();
}
});
}
});
};
/**
* Sample test data
*/
export const testData = {
user: {
id: "user-123",
email: "test@example.com",
name: "Test User",
password: "$2a$10$hashedpassword", // bcrypt hash
role: "USER",
createdAt: new Date("2024-01-01"),
updatedAt: new Date("2024-01-01")
},
product: {
id: 1,
title: "Test Product",
description: "A test product description",
price: 100,
discountedPrice: 80,
stock: 10,
sku: "TEST-001",
categoryId: 1,
createdAt: new Date("2024-01-01"),
updatedAt: new Date("2024-01-01"),
images: [
{ id: 1, url: "/images/test.jpg", thumbnailUrl: "/images/test-thumb.jpg", order: 0, productId: 1 },
],
category: {
id: 1,
title: "Test Category",
slug: "test-category"
},
reviews: []
},
cartItem: {
id: 1,
userId: "user-123",
productId: 1,
quantity: 2,
deviceId: "device-123",
syncedAt: new Date("2024-01-01"),
createdAt: new Date("2024-01-01"),
updatedAt: new Date("2024-01-01")
},
order: {
id: 1,
userId: "user-123",
status: "PROCESSING",
total: 160,
shippingAddress: "123 Test St",
createdAt: new Date("2024-01-01"),
updatedAt: new Date("2024-01-01"),
items: [
{
id: 1,
orderId: 1,
productId: 1,
quantity: 2,
price: 80
},
]
}
};
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