vitest.config.ts

import path from 'path';
import { defineConfig, ViteUserConfigExport } from 'vitest/config';
import { playwright } from '@vitest/browser-playwright';

const mockWebRemote = path.resolve(__dirname, './tests/mocks/MockWebRemote.ts');

const config: ViteUserConfigExport = {
  server: {
    headers: {
      'Cross-Origin-Opener-Policy': 'same-origin',
      'Cross-Origin-Embedder-Policy': 'require-corp'
    }
  },
  // This is only needed for local tests to resolve the package name correctly
  resolve: {
    alias: {
      /**
       * Note that this requires the Typescript to be compiled with `tsc`
       * first. This is required due to the format of Webworker URIs
       * they link to `.js` files.
       */
      '@powersync/web': path.resolve(__dirname, './lib'),
      // Mock WebRemote to throw 401 errors for all HTTP requests in tests
      '../../db/sync/WebRemote.js': mockWebRemote,
      './sync/WebRemote.js': mockWebRemote
    }
  },
  worker: {
    format: 'es'
  },
  optimizeDeps: {
    exclude: ['@journeyapps/wa-sqlite']
  },
  test: {
    globals: true,
    include: ['tests/**/*.test.ts'],
    maxConcurrency: 1,
    // This doesn't currently seem to work in browser mode, but setting this for one day when it does
    sequence: {
      shuffle: false, // Disable shuffling of test files
      concurrent: false // Run test files sequentially
    },
    /**
     * Starts each test in a new iFrame
     */
    isolate: true,
    browser: {
      enabled: true,
      provider: playwright(),
      headless: true,
      instances: [
        {
          browser: 'chromium'
        }
        // {
        //   browser: 'firefox'
        // }
        // This requires some additional work to get all tests passing
        // {
        //   browser: 'webkit'
        // }
      ]
    }
  }
};

export default defineConfig(config);