unleash-server/dist/lib/routes/backstage.test.js

Unleash is an enterprise ready feature flag service. It provides different strategies for handling feature flags.

import supertest from 'supertest';
import { createServices } from '../services/index.js';
import { createTestConfig } from '../../test/config/test-config.js';
import createStores from '../../test/fixtures/store.js';
import getApp from '../app.js';
import MetricsMonitor from '../metrics.js';
test('should enable prometheus', async () => {
    const stores = createStores();
    const config = createTestConfig();
    const services = createServices(stores, config);
    await stores.userStore.insert({
        username: 'admin',
    });
    const app = await getApp(config, stores, services);
    const monitor = new MetricsMonitor();
    await monitor.startMonitoring(config, stores, 'test', config.eventBus, services.instanceStatsService, services.schedulerService, 
    // @ts-expect-error
    stores.db);
    const request = supertest(app);
    const { status, headers, text } = await request.get('/internal-backstage/prometheus');
    expect(status).toBe(200);
    expect(headers['content-type']).toMatch(/text/);
    // extract line that starts with users_total
    const usersTotalLine = text
        .split('\n')
        .find((line) => line.startsWith('users_total'));
    expect(usersTotalLine).toBeDefined();
    expect(usersTotalLine).toMatch(/users_total 1/);
});
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