testTag.js

const program = require("commander");
const { spawn } = require('child_process');

program
  .version("1.0")
  .description("Test AVA with tags")
  .name("test:tag")
  .option("-t, --tags <tags>", "Tags provided with comma")
  .parse(process.argv);

const tags = program.tags.replace(/ /g, '').split(",");
let ava = ['ava', '--verbose'];

for (var i = 0; i < tags.length; i++) {
  ava.push("--match");
  ava.push("*" + tags[i] + "*");
}

const test = spawn('yarn', ava);

test.stdout.on('data', data => {
  console.log(`${data}`);
});

test.stderr.on( 'data', data => {
  console.log(`${data}`);
});

test.on('close', code => {
  console.log(`child process exited with code ${code}`);
});