libpq/test/sync-parameters.js

Low-level native bindings to PostgreSQL libpq

var assert = require('assert');
var helper = require('./helper');

describe('sync query with parameters', function () {
  helper.setupIntegration();

  it('works with single string parameter', function () {
    var queryText = 'SELECT $1::text as name';
    this.pq.execParams(queryText, ['Brian']);
    assert.strictEqual(this.pq.ntuples(), 1);
    assert.strictEqual(this.pq.getvalue(0, 0), 'Brian');
  });

  it('works with a number parameter', function () {
    var queryText = 'SELECT $1::int as age';
    this.pq.execParams(queryText, [32]);
    assert.strictEqual(this.pq.ntuples(), 1);
    assert.strictEqual(this.pq.getvalue(0, 0), '32');
  });

  it('works with multiple parameters', function () {
    var queryText = 'INSERT INTO test_data(name, age) VALUES($1, $2)';
    this.pq.execParams(queryText, ['Barkley', 4]);
    assert.equal(this.pq.resultErrorMessage(), '');
  });

  it('throws error when second argument is not an array', function () {
    var queryText = 'INSERT INTO test_data(name, age) VALUES($1, $2)';
    assert.throws(
      function () {
        this.pq.execParams(queryText, 'Barkley', 4);
        assert.equal(this.pq.resultErrorMessage(), '');
      }.bind(this)
    );
  });
});