node-postgres/test/unit/connection-parameters/environment-variable-tests.js

var helper = require(__dirname + '/../test-helper');
var assert = require('assert');
var ConnectionParameters = require(__dirname + '/../../../lib/connection-parameters');
var defaults = require(__dirname + '/../../../lib').defaults;

//clear process.env
var realEnv = {};
for(var key in process.env) {
  realEnv[key] = process.env[key];
  delete process.env[key];
}

test('ConnectionParameters initialized from environment variables', function(t) {
  process.env['PGHOST'] = 'local';
  process.env['PGUSER'] = 'bmc2';
  process.env['PGPORT'] = 7890;
  process.env['PGDATABASE'] = 'allyerbase';
  process.env['PGPASSWORD'] = 'open';

  var subject = new ConnectionParameters();
  assert.equal(subject.host, 'local', 'env host');
  assert.equal(subject.user, 'bmc2', 'env user');
  assert.equal(subject.port, 7890, 'env port');
  assert.equal(subject.database, 'allyerbase', 'env database');
  assert.equal(subject.password, 'open', 'env password');
});

test('ConnectionParameters initialized from mix', function(t) {
  delete process.env['PGPASSWORD'];
  delete process.env['PGDATABASE'];
  var subject = new ConnectionParameters({
    user: 'testing',
    database: 'zugzug'
  });
  assert.equal(subject.host, 'local', 'env host');
  assert.equal(subject.user, 'testing', 'config user');
  assert.equal(subject.port, 7890, 'env port');
  assert.equal(subject.database, 'zugzug', 'config database');
  assert.equal(subject.password, defaults.password, 'defaults password');
});

//clear process.env
for(var key in process.env) {
  delete process.env[key];
}

test('connection string parsing', function(t) {
  var string = 'postgres://brian:pw@boom:381/lala';
  var subject = new ConnectionParameters(string);
  assert.equal(subject.host, 'boom', 'string host');
  assert.equal(subject.user, 'brian', 'string user');
  assert.equal(subject.password, 'pw', 'string password');
  assert.equal(subject.port, 381, 'string port');
  assert.equal(subject.database, 'lala', 'string database');
});

test('connection string parsing - ssl', function(t) {
  var string = 'postgres://brian:pw@boom:381/lala?ssl=true';
  var subject = new ConnectionParameters(string);
  assert.equal(subject.ssl, true, 'ssl');

  string = 'postgres://brian:pw@boom:381/lala?ssl=1';
  subject = new ConnectionParameters(string);
  assert.equal(subject.ssl, true, 'ssl');

  string = 'postgres://brian:pw@boom:381/lala?other&ssl=true';
  subject = new ConnectionParameters(string);
  assert.equal(subject.ssl, true, 'ssl');

  string = 'postgres://brian:pw@boom:381/lala?ssl=0';
  subject = new ConnectionParameters(string);
  assert.equal(!!subject.ssl, false, 'ssl');

  string = 'postgres://brian:pw@boom:381/lala';
  subject = new ConnectionParameters(string);
  assert.equal(!!subject.ssl, false, 'ssl');
});

//clear process.env
for(var key in process.env) {
  delete process.env[key];
}


test('ssl is false by default', function() {
  var subject = new ConnectionParameters()
  assert.equal(subject.ssl, false)
})

var testVal = function(mode, expected) {
  //clear process.env
  for(var key in process.env) {
    delete process.env[key];
  }
  process.env.PGSSLMODE = mode;
  test('ssl is ' + expected + ' when $PGSSLMODE=' + mode, function() {
    var subject = new ConnectionParameters();
    assert.equal(subject.ssl, expected);
  });
};

testVal('', false);
testVal('disable', false);
testVal('allow', false);
testVal('prefer', true);
testVal('require', true);
testVal('verify-ca', true);
testVal('verify-full', true);


//restore process.env
for(var key in realEnv) {
  process.env[key] = realEnv[key];
}