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 testItReturnASingleValueForCollectionTransducer()
{
$transducer = Fp\filtering(is_even_makker());
$reduced = Fp\transduce($transducer, Fp\single_result(), range(3, 6));
$this->assertEquals(4, $reduced);
}
public function testItApplyTheCallableOnEachItem()
{
$transducer = Fp\first(equal_three_makker());
$reduced = Fp\transduce($transducer, Fp\single_result(), range(1, 6));
$this->assertEquals(3, $reduced);
}
