import { writeMultipleFiles } from '../../utils/fs';

import { ng } from '../../utils/process';

import { updateJsonFile } from '../../utils/project';

import { expectToFail } from '../../utils/utils';

import { stripIndent } from 'common-tags';

// Make sure asset files are served

export default function () {

return Promise.resolve()

.then(() => writeMultipleFiles({

'src/assets/file.txt': 'assets-folder-content',

'src/file.txt': 'file-content',

// Not using `async()` in tests as it seemed to swallow `fetch()` errors

'src/app/app.component.spec.ts': stripIndent`

describe('Test Runner', () => {

const fetch = global['fetch'];

it('should serve files in assets folder', (done) => {

fetch('/assets/file.txt')

.then(response => response.text())

.then(fileText => {

expect(fileText).toMatch('assets-folder-content');

done();

});

});

it('should serve files explicitly added to assets array', (done) => {

fetch('/file.txt')

.then(response => response.text())

.then(fileText => {

expect(fileText).toMatch('file-content');

done();

});

});

});

`

}))

// Test failure condition (no assets in angular-cli.json)

.then(() => updateJsonFile('angular-cli.json', configJson => {

const app = configJson['apps'][0];

app['assets'] = [];

}))

.then(() => expectToFail(() => ng('test', '--single-run'),

'Should fail because the assets to serve were not in the Angular CLI config'))

// Test passing condition (assets are included)

.then(() => updateJsonFile('angular-cli.json', configJson => {

const app = configJson['apps'][0];

app['assets'] = ['assets', 'file.txt'];

}))

.then(() => ng('test', '--single-run'));

}