public function testCanBeUsedOnAListWithReduce()
{
$square = function ($x) {
return $x * $x;
};
$this->assertSame(1, F\reduce(F\C1\minBy($square), -999999, [3, -5, 4, 1, -2]));
}
public function testWorks()
{
$this->assertSame(16, F\reduce('F\\add', 10, [1, 2, 3]));
}