public function testMap()
{
$functor = Funktion(function ($value) {
return $value * 2;
});
$this->assertTrue(Arrays::isArray(Repeatables::map(self::getArray(), $functor)));
$this->assertTrue(Traversables::isTraversable(Repeatables::map(self::getIterator(), $functor)));
$this->assertTrue(Traversables::isTraversable(Repeatables::map(self::getIteratorAggregate(), $functor)));
$repeatables = [self::getArray(), self::getIterator(), self::getIteratorAggregate()];
foreach ($repeatables as $repeatable) {
foreach (Repeatables::map($repeatable, $functor) as $key => $value) {
$this->assertEquals($repeatable[$key] * 2, $value);
}
}
}
function map($repeatable, UnaryFunktionInterface $predicate)
{
return Repeatables::map($repeatable, $predicate);
}