public function testMappingAndFirst()
{
$transformed = Fp\transduce(Fp\compose(Fp\mapping(square_makker()), Fp\first(function ($x) {
return $x > 6;
})), Fp\single_result(), range(1, 6));
$this->assertEquals(9, $transformed);
}
public function testComposabilityWithHimself()
{
$composed = Fp\compose(plus_one_makker(), plus_one_makker(), Fp\compose(plus_one_makker(), square_makker()));
$this->assertEquals(12, $composed(3));
}
public function testCompositionWithMapFilterWithArityOfOne()
{
$transduced = Fp\transduce(Fp\compose(Fp\map(square_makker()), Fp\filter(is_even_makker())), Fp\appending(), [1, 2, 3, 4, 5, 6]);
$this->assertEquals([4, 16, 36], $transduced);
}
public function testTransducing()
{
$transduced = $this->collection->transduce(Fp\compose(Fp\map(square_makker()), Fp\filter(is_even_makker())), Fp\appending())->values();
$this->assertEquals([4, 16], $transduced);
}