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\filtering(is_even_makker()); $squared = Fp\transduce($transducer, Fp\appending(), range(1, 6)); $this->assertEquals([2, 4, 6], $squared); }
public function testMappingAndFilteringAndEnumeratingComposition() { $transformed = Fp\transduce(Fp\compose(Fp\mapping(square_makker()), Fp\filtering(is_even_makker()), Fp\enumerating()), Fp\appending(), range(1, 6)); $this->assertEquals([[0, 4], [1, 16], [2, 36]], $transformed); }