Generated by SassMeister.com.

SassMeister-input.scss

// ----
// libsass (v3.2.5)
// ----

@import "true";

// From Thoughtbot's Bourbon
/// Converts shorthand to the 4-value syntax.
///
/// @param {List} $shorthand
///
/// @example scss - Usage
///   .element {
///     margin: unpack(1em 2em);
///   }
///
/// @example css - CSS Output
///   .element {
///     margin: 1em 2em 1em 2em;
///   }

@function unpack($shorthand) {
  @if length($shorthand) == 1 {
    @return nth($shorthand, 1) nth($shorthand, 1) nth($shorthand, 1) nth($shorthand, 1);
  } @else if length($shorthand) == 2 {
    @return nth($shorthand, 1) nth($shorthand, 2) nth($shorthand, 1) nth($shorthand, 2);
  } @else if length($shorthand) == 3 {
    @return nth($shorthand, 1) nth($shorthand, 2) nth($shorthand, 3) nth($shorthand, 2);
  } @else {
    @return $shorthand;
  }
}

@include test-module('Utilities') {
  @include test('unpack [function]') {
    $test: unpack(1em);
    $expect: 1em 1em 1em 1em;
    @include assert-equal($test, $expect, 'Handles one value');
    
    $test: unpack(1em 2em);
    $expect: 1em 2em 1em 2em;
    @include assert-equal($test, $expect, 'Handles two values');
    
    $test: unpack(1em 2em 3em);
    $expect: 1em 2em 3em 2em;
    @include assert-equal($test, $expect, 'Handles three values');
    
    $test: unpack(1em 2em 3em 4em);
    $expect: 1em 2em 3em 4em;
    @include assert-equal($test, $expect, 'Handles four values');
  }
}

SassMeister-output.css

/* # Utilities ---------- */
/* unpack [function] */
[data-module="Utilities"] [data-test="unpack [function]"] .assert-equal {
  -result: PASS;
  -description: "Handles one value";
}

[data-module="Utilities"] [data-test="unpack [function]"] .assert-equal {
  -result: PASS;
  -description: "Handles two values";
}

[data-module="Utilities"] [data-test="unpack [function]"] .assert-equal {
  -result: PASS;
  -description: "Handles three values";
}

[data-module="Utilities"] [data-test="unpack [function]"] .assert-equal {
  -result: PASS;
  -description: "Handles four values";
}