public function testConverge()
{
$add = function ($a, $b) {
return $a + $b;
};
$multiply = function ($a, $b) {
return $a * $b;
};
$subtract = function ($a, $b) {
return $a - $b;
};
$conv1 = P::converge($multiply, [$add, $subtract]);
$this->assertEquals(-3, $conv1(1, 2));
$add3 = function ($a, $b, $c) {
return $a + $b + $c;
};
$conv2 = P::converge($add3, [$multiply, $add, $subtract]);
$this->assertEquals(4, $conv2(1, 2));
$a = function () use($add, $subtract) {
(yield $add);
(yield $subtract);
};
$conv1 = P::converge($multiply, $a());
$this->assertEquals(-3, $conv1(1, 2));
}
