/**
* @see Comparable::equals
*
* @param SnakConstraint $constraint
* @return boolean
*/
public function equals($constraint)
{
if ($constraint === $this) {
return true;
}
if (!$constraint instanceof self) {
return false;
}
return $this->snak->equals($constraint->snak);
}
/**
* @see Comparable::equals
*
* @since 0.7.4
*
* @param mixed $target
*
* @return bool
*/
public function equals($target)
{
if ($this === $target) {
return true;
}
return $target instanceof self && $this->guid === $target->guid && $this->rank === $target->rank && $this->mainSnak->equals($target->mainSnak) && $this->qualifiers->equals($target->qualifiers) && $this->references->equals($target->references);
}
/**
* @dataProvider notEqualsProvider
*/
public function testGivenDifferentSnaks_EqualsReturnsFalse(Snak $snak1, Snak $snak2)
{
$this->assertFalse($snak1->equals($snak2));
$this->assertFalse($snak2->equals($snak1));
}
/**
* @dataProvider snakProvider
* @param Snak $snak
*/
public function testEquals(Snak $snak)
{
$this->assertTrue($snak->equals($snak));
$this->assertFalse($snak->equals('~=[,,_,,]:3'));
}
private function isSnakMorePrecise(Snak $a, Snak $b)
{
if ($a instanceof PropertyValueSnak && $b instanceof PropertyValueSnak) {
return $a->getPropertyId()->equals($b->getPropertyId()) && $this->isDataValueMorePrecise($a->getDataValue(), $b->getDataValue());
}
return $a->equals($b);
}
