Generated by SassMeister.com.

SassMeister-input.scss

// ----
// libsass (v3.1.0-beta)
// ----

.test-zero {
  $var1: 0px;
  $var2: 0;
  content: "values should be false";
  _1: ($var1 * $var2) > 0;
  _2: ($var1 * $var2) / 1px > 0; // converting to unitless works
}

.test-return-inside-each {
  $list: 1, 2, 3, 4;
  @function each-wrong($val) {
    @each $item in $list {
      @if $item == $val {
        @return nth($list, $item);
      }
    }
    @return 0;
  }
  
  @function each-right($val) {
    $ret: 0;
    @each $item in $list {
      @if $item == $val {
        $ret: nth($list, $item);
      }
    }
    @return $ret;
  }

  content: "values should be 1";
  _1: each-wrong(1);
  _2: each-right(1);
}

.color-calculation-sat {
  content: "sat() should be 100% max";
  $color: #0068b2;
  $dinamic-color: adjust-color($color, $saturation: 10%);
  _original-color: $color;
  _dinamic-color: $dinamic-color;
  _original-sat: saturation($color);
  _dinamic-sat: saturation($dinamic-color);
}

.color-calculation-red {
  content: "red() should be zero min";
  $color: #0068b2;
  $static-color: #0069bb;
  $dinamic-color: adjust-color($color, $saturation: 10%);
  _dinamic-color: $dinamic-color;
  _static-color: $static-color;
  _dinamic-red: red($dinamic-color);
  _static-red: red($color);
}

SassMeister-output.css

.test-zero {
  content: "values should be false";
  _1: true;
  _2: false; }

.test-return-inside-each {
  content: "values should be 1";
  _1: 1;
  _2: 1; }

.color-calculation-sat {
  content: "sat() should be 100% max";
  _original-color: #0068b2;
  _dinamic-color: #0069bb;
  _original-sat: 100%;
  _dinamic-sat: 110%; }

.color-calculation-red {
  content: "red() should be zero min";
  _dinamic-color: #0069bb;
  _static-color: #0069bb;
  _dinamic-red: -8.9;
  _static-red: 0; }