node-postgres/test/integration/client/heroku-pgpass-tests.js

var helper = require(__dirname + '/../test-helper');

// Path to the password file
var passfile = __dirname + '/heroku.pgpass';

// Export the path to the password file
process.env.PGPASSFILE = passfile;

// Do a chmod 660, because git doesn't track those permissions
require('fs').chmodSync(passfile, 384);

var pg = helper.pg;

var host = 'ec2-107-20-224-218.compute-1.amazonaws.com';
var database = 'db6kfntl5qhp2';
var user = 'kwdzdnqpdiilfs';

var config = {
  host: host,
  database: database,
  user: user,
  ssl: true
};

test('uses password file when PGPASSFILE env variable is set', function() {
  // connect & disconnect from heroku
  pg.connect(config, assert.calls(function(err, client, done) {
    assert.isNull(err);
    client.query('SELECT NOW() as time', assert.success(function(res) {
      assert(res.rows[0].time.getTime());

      // cleanup ... remove the env variable
      delete process.env.PGPASSFILE;

      done();
      pg.end();
    }))
  }));
});