@covers PHPUnit_Framework_Assert::readAttribute
public function testReadAttribute() {
$obj = new ClassWithNonPublicAttributes();
$this
->assertEquals('foo', $this
->readAttribute($obj, 'publicAttribute'));
$this
->assertEquals('bar', $this
->readAttribute($obj, 'protectedAttribute'));
$this
->assertEquals('baz', $this
->readAttribute($obj, 'privateAttribute'));
$this
->assertEquals('bar', $this
->readAttribute($obj, 'protectedParentAttribute'));
//$this->assertEquals('bar', $this->readAttribute($obj, 'privateParentAttribute'));
}