Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.6)
// Compass (v1.0.1)
// ----

@function map-append($map, $key, $value) {
  @return map-merge($map, ($key: append(map-get($map, $key) or (), $value)));
}

@function parse-expects($expects) {
  $map: (
  );
  
  @each $item in $expects {
    @if map-has-key($map, compare) {
      $map: map-append($map, expect, $item);
    } @else if map-has-key($map, test)
      and type-of($item) == string
      and str-index($item, 'to ') {
      $map: map-append($map, compare, $item);
    } @else {
      $map: map-append($map, test, $item);
    }
  }
  
  @return $map;
}

.test {
  @each $key, $value in parse-expects(3 - 17 monkeys 'not to be' under the sky) {
    #{$key}: $value;
  }
}

SassMeister-output.css

.test {
  test: -14 monkeys;
  compare: "not to be";
  expect: under the sky;
}