public function testIsNaryFunktion()
{
$funktion = Callables::newFunktion(function ($a, $b, $c) {
return null;
});
$this->assertFalse(Callables::isUnaryFunktion($funktion));
$this->assertFalse(Callables::isBinaryFunktion($funktion));
$this->assertTrue(Callables::isNaryFunktion($funktion));
}
public function testFunktion()
{
$this->assertEquals(Callables::newFunktion(self::get1Ary()), Funktion(self::get1Ary()));
$this->assertEquals(Callables::newFunktion(self::get2Ary()), Funktion(self::get2Ary()));
$this->assertEquals(Callables::newFunktion(self::get3Ary()), Funktion(self::get3Ary()));
}
/**
* Creates a new functor from a given callable.
*
* The actual instance depends on the callable's arity:
* <ul>
* <li>A 1-ary callable creates an unary functor</li>
* <li>A 2-ary callable creates a binary functor</li>
* <li>Otherwise a N-ary functor is created</li>
* </ul>
*
* @param callable $functor
* The given callable.
* @return FunktionInterface
*/
function Funktion(callable $functor) : FunktionInterface
{
return Callables::newFunktion($functor);
}
