test dom with ava, using nodejs, this is a script which creates an environment under linux (needs yarn, perl)

makeava

rm package.json
rm  -f package.json.original
rm -r node_modules
rm -r test
yarn init -y
yarn add ava browser-env -D
perl -0777 -i.original -pe 's/aaa/bbb/igs' package.json
perl -0777 -i.original -pe 's/"license": "MIT",/"license": "MIT",\n   "scripts": \{\n    "test": "ava --verbose"\n\n  },\n  "ava": \{\n    "require": [\n      ".\/setup-browser-env.js"\n    ]\n  },\n/igs' package.json

cat >  setup-browser-env.js <<EOL
require('browser-env')()
EOL

mkdir test
cat >test/test1.js <<EOL
import test from 'ava';

test('can query for DOM elements', t => {
    document.body.innerHTML = '<p>Hello, world</p>';

    const para = document.querySelector('p');

    t.is(para.innerHTML, 'Hello, world');
});
EOL
yarn test