public function testSetAndHas()
{
$sut = new Kimai_ArrayObject();
$this->assertFalse($sut->has('foo'));
$this->assertFalse($sut->has('bar'));
$sut['bar'] = 'world';
$sut->set('foo', 'hello');
$this->assertTrue($sut->has('foo'));
$this->assertTrue($sut->has('bar'));
$this->assertEquals($sut->get('foo'), 'hello');
$this->assertEquals($sut['foo'], 'hello');
$this->assertEquals($sut->get('bar'), 'world');
$this->assertEquals($sut['bar'], 'world');
}