public function testEquality()
{
$p1 = new DirectedPair('A', 'B');
$p2 = new DirectedPair('A', 'B');
$p3 = new DirectedPair('C', 'D');
$p4 = new Pair('A', 'B');
$p5 = new DirectedPair('D', 'C');
$this->assertTrue($p1->equals($p2));
$this->assertTrue($p2->equals($p1));
$this->assertFalse($p1->equals($p3));
$this->assertFalse($p3->equals($p1));
$this->assertFalse($p3->equals(1337));
$this->assertTrue($p3->equals($p3));
$this->assertFalse($p1->equals($p4));
$this->assertFalse($p3->equals($p5));
$p7 = new DirectedPair('abc', 'def');
$p8 = new DirectedPair('def', 'abc');
$this->assertFalse($p7->equals($p8));
$this->assertFalse($p8->equals($p7));
}
/**
* Write a DirectedPair in the current binary stream.
*
* @param DirectedPair $directedPair A DirectedPair object.
* @throws QtiBinaryStreamAccessException
*/
public function writeDirectedPair(DirectedPair $directedPair)
{
try {
$this->writeString($directedPair->getFirst());
$this->writeString($directedPair->getSecond());
} catch (BinaryStreamAccessException $e) {
$msg = "An error occured while writing a directedPair.";
throw new QtiBinaryStreamAccessException($msg, $this, QtiBinaryStreamAccessException::DIRECTEDPAIR, $e);
}
}
/**
* Marshall a QTI directedPair datatype into its PCI JSON Representation.
*
* @param \qtism\common\datatypes\DirectedPair $directedPair
* @return array
*/
protected function marshallDirectedPair(DirectedPair $directedPair)
{
return array('base' => array('directedPair' => array($directedPair->getFirst(), $directedPair->getSecond())));
}