public function testCanUseOrPredicateAndAndPredicateMethods()
{
$predicateSet = new PredicateSet();
$predicateSet->orPredicate(new IsNull('foo'))->andPredicate(new IsNull('bar'))->orPredicate(new IsNull('baz'))->andPredicate(new IsNull('bat'));
$parts = $predicateSet->getExpressionData();
$this->assertEquals(7, count($parts));
$this->assertNotContains('OR', $parts[1], var_export($parts, 1));
$this->assertContains('AND', $parts[1]);
$this->assertContains('OR', $parts[3]);
$this->assertNotContains('AND', $parts[3]);
$this->assertNotContains('OR', $parts[5]);
$this->assertContains('AND', $parts[5]);
}
