wiki.techinc.nl/tests/phpunit/data/helpers/WellProtectedClass.php

<?php

class WellProtectedClass {
	protected $property;

	public function __construct() {
		$this->property = 1;
	}

	protected function incrementPropertyValue() {
		$this->property++;
	}

	public function getProperty() {
		return $this->property;
	}

	protected function whatSecondArg( $a, $b = false ) {
		return $b;
	}
}