/**
* @testdox Unit test: Test literal() is chainable, returns proper values, and is backwards compatible with 2.0.*
*/
public function testLiteral()
{
$predicate = new Predicate();
// is chainable
$this->assertSame($predicate, $predicate->literal('foo = bar'));
// with parameter
$this->assertEquals(array(array('foo = bar', array(), array())), $predicate->getExpressionData());
// test literal() is backwards-compatible, and works with with parameters
$predicate = new Predicate();
$predicate->expression('foo = ?', 'bar');
// with parameter
$this->assertEquals(array(array('foo = %s', array('bar'), array(Expression::TYPE_VALUE))), $predicate->getExpressionData());
// test literal() is backwards-compatible, and works with with parameters, even 0 which tests as false
$predicate = new Predicate();
$predicate->expression('foo = ?', 0);
// with parameter
$this->assertEquals(array(array('foo = %s', array(0), array(Expression::TYPE_VALUE))), $predicate->getExpressionData());
}
