public function testAddConditions()
{
$j = new Join();
$j->addCondition('foo', 'bar');
$j->addCondition('baz', 'bal');
$expect = array(array('left' => 'foo', 'operator' => '=', 'right' => 'bar'), array('left' => 'baz', 'operator' => '=', 'right' => 'bal'));
$this->assertEquals(array('=', '='), $j->getOperators());
$this->assertEquals(array('foo', 'baz'), $j->getLeftColumns());
$this->assertEquals(array('bar', 'bal'), $j->getRightColumns());
$this->assertEquals($expect, $j->getConditions());
}