import { expectFileToExist, expectFileToMatch, rimraf } from '../../../utils/fs';

import { getActivePackageManager, uninstallPackage } from '../../../utils/packages';

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

export default async function () {

// In case a previous test installed tailwindcss, clear it.

// (we don't clear node module directories between tests)

// npm does not appear to fully uninstall sometimes

if (getActivePackageManager() === 'npm') {

await rimraf('node_modules/tailwindcss');

}

try {

await ng('add', 'tailwindcss', '--skip-confirmation');

await expectFileToExist('.postcssrc.json');

await expectFileToMatch('src/styles.css', /@import 'tailwindcss';/);

await expectFileToMatch('package.json', /"tailwindcss":/);

await expectFileToMatch('package.json', /"@tailwindcss\/postcss":/);

await expectFileToMatch('package.json', /"postcss":/);

// Ensure the project builds

await ng('build', '--configuration=development');

} finally {

await uninstallPackage('tailwindcss');

await uninstallPackage('@tailwindcss/postcss');

await uninstallPackage('postcss');

}

}