node-postgres/packages/pg-query-stream/test/empty-query.js

const assert = require('assert');
const helper = require('./helper');
const QueryStream = require('../');

helper('empty-query', function (client) {
  it('handles empty query', function (done) {
    const stream = new QueryStream('-- this is a comment', []);
    const query = client.query(stream);
    query
      .on('end', function () {
        // nothing should happen for empty query
        done();
      })
      .on('data', function () {
        // noop to kick off reading
      });
  });

  it('continues to function after stream', function (done) {
    client.query('SELECT NOW()', done);
  });
});