xref: /expo/packages/@expo/cli/e2e/__tests__/config-test.ts (revision aaa8033f)

/* eslint-env jest */
import { ExecaError } from 'execa';
import fs from 'fs/promises';
import path from 'path';

import { execute, projectRoot, getRoot, getLoadedModulesAsync } from './utils';

const originalForceColor = process.env.FORCE_COLOR;

beforeAll(async () => {
  await fs.mkdir(projectRoot, { recursive: true });
  process.env.FORCE_COLOR = '0';
});

afterAll(() => {
  process.env.FORCE_COLOR = originalForceColor;
});

it('loads expected modules by default', async () => {
  const modules = await getLoadedModulesAsync(`require('../../build/src/config').expoConfig`);
  expect(modules).toStrictEqual([
    '../node_modules/ansi-styles/index.js',
    '../node_modules/arg/index.js',
    '../node_modules/chalk/source/index.js',
    '../node_modules/chalk/source/util.js',
    '../node_modules/has-flag/index.js',
    '../node_modules/supports-color/index.js',
    '@expo/cli/build/src/config/index.js',
    '@expo/cli/build/src/log.js',
    '@expo/cli/build/src/utils/args.js',
  ]);
});

it('runs `npx expo config --help`', async () => {
  const results = await execute('config', '--help');
  expect(results.stdout).toMatchInlineSnapshot(`
    "
      Info
        Show the project config

      Usage
        $ npx expo config <dir>

      Options
        <dir>                                    Directory of the Expo project. Default: Current working directory
        --full                                   Include all project config data
        --json                                   Output in JSON format
        -t, --type <public|prebuild|introspect>  Type of config to show
        -h, --help                               Usage info
    "
  `);
});

it(
  'runs `npx expo config --json`',
  async () => {
    const projectName = 'basic-config';
    const projectRoot = getRoot(projectName);
    // Create the project root aot
    await fs.mkdir(projectRoot, { recursive: true });
    // Create a fake package.json -- this is a terminal file that cannot be overwritten.
    await fs.writeFile(path.join(projectRoot, 'package.json'), '{ "version": "1.0.0" }');
    await fs.writeFile(path.join(projectRoot, 'app.json'), '{ "expo": { "name": "foobar" } }');
    // Add an environment variable file to test that it's not included in the config.
    await fs.writeFile(path.join(projectRoot, '.env'), 'FOOBAR=1');

    const results = await execute('config', projectName, '--json');
    // @ts-ignore
    const exp = JSON.parse(results.stdout);

    expect(exp.name).toEqual('foobar');
    expect(exp.slug).toEqual('foobar');
    expect(exp.platforms).toStrictEqual([]);
    expect(exp.version).toBe('1.0.0');
    expect(exp._internal.dynamicConfigPath).toBe(null);
    expect(exp._internal.staticConfigPath).toMatch(/\/basic-config\/app\.json$/);
  }, // Could take 45s depending on how fast npm installs
  120 * 1000
);

it('throws on invalid project root', async () => {
  expect.assertions(1);
  try {
    await execute('config', 'very---invalid', '--json');
  } catch (e) {
    const error = e as ExecaError;
    expect(error.stderr).toMatch(/Invalid project root: \//);
  }
});