form

  <form id="test-form" action="/test/" method="post">
    <div class="test-button-set">
      <button type="button" id="hdfs-test" class="btn btn-default btn-lg selected">HDFS</button>
      <button type="button" id="hive-test" class="btn btn-default btn-lg">HIVE</button>
      <button type="button" id="hdfs-hive-test" class="btn btn-default btn-lg">BOTH</button>
    </div>
    <button id="submit-test" type="submit" class="btn btn-default btn-lg">Submit</button>
  </form>

gistfile1.txt

var testRun = document.getElementById("test-form");
    testRun.addEventListener('submit', function(event) {
      // logic
    });
});