/**
* @test
*/
public function getComponentShouldReturnNullIfAskedForComponentOutOfRange()
{
$r = new Rule(1, 'Foo', array('x', 'y'));
$this->assertEquals('y', $r->getComponent(1));
$this->assertNull($r->getComponent(2));
}
/**
* Returns the currently expected component.
*
* If the item is:
*
* <pre>
* A -> a . b c
* </pre>
*
* then this method returns the component "b".
*
* @return string The component.
*/
public function getActiveComponent()
{
return $this->rule->getComponent($this->dotIndex);
}