Torben Sorensen
e457bbf046
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53 lines
1.5 KiB
TypeScript
53 lines
1.5 KiB
TypeScript
// src/tests/utils/createTestApp.ts
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import express, { type Router, type RequestHandler } from 'express';
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import type { Logger } from 'pino';
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import { errorHandler } from '../../middleware/errorHandler';
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import { mockLogger } from './mockLogger';
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import type { UserProfile } from '../../types';
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// Augment the Express Request type to include our custom `log` and `user` properties.
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// This uses the modern module augmentation syntax instead of `namespace`.
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declare module 'express-serve-static-core' {
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interface Request {
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log: Logger;
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user?: UserProfile;
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}
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}
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interface CreateAppOptions {
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router: Router;
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basePath: string;
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authenticatedUser?: UserProfile;
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middleware?: RequestHandler[];
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}
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/**
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* Creates a standardized Express application instance for integration tests.
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* It includes JSON parsing, a mock logger, an optional authenticated user,
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* the specified router, and the global error handler.
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*/
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export const createTestApp = ({
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router,
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basePath,
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authenticatedUser,
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middleware = [],
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}: CreateAppOptions) => {
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const app = express();
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app.use(express.json({ strict: false }));
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// Apply custom middleware (e.g. cookieParser)
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if (middleware.length > 0) {
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app.use(middleware);
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}
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// Inject the mock logger and authenticated user into every request.
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app.use((req, res, next) => {
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req.log = mockLogger;
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if (authenticatedUser) req.user = authenticatedUser;
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next();
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});
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app.use(basePath, router);
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app.use(errorHandler);
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return app;
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};
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