@function partition-map-key-test-fn($n) {
  @return ($n % 2) == 0;
}

@include describe('_partition-map-by-key') {
  @include it('Properly partitions the map by key based on provided fn') {
    $input: (1: one, 2: two, 3: three, 4: four, 5: five, 6: six);
    $expected-output: (
      (2: two,  4: four,  6: six),
      (1: one,  3: three, 5: five)
    );

    @include assert-equal(
      _partition-map-by-key($input, partition-map-key-test-fn),
      $expected-output
    );
  }
}