public function testClone()
{
// value, default value and correct response must be independent after cloning.
$responseVariable = new ResponseVariable('MYVAR', Cardinality::SINGLE, BaseType::INTEGER, new QtiInteger(25));
$responseVariable->setDefaultValue(new QtiInteger(1));
$responseVariable->setCorrectResponse(new QtiInteger(1337));
$clone = clone $responseVariable;
$this->assertNotSame($responseVariable->getValue(), $clone->getValue());
$this->assertNotSame($responseVariable->getDefaultValue(), $clone->getDefaultValue());
$this->assertNotSame($responseVariable->getCorrectResponse(), $clone->getCorrectResponse());
}
