@include describe('kf-loop') {
  @include it('When passed a single argument (just $animation-map), it will set the _kf-inifinite-loop property to true') {
    $input: (
      0ms: ('.a': (background: red)),
      500ms: ('.a': (background: blue)),
      1400ms: ('.b': (background: purple)),
      1900ms: ('.b': (background: green))
    );
    $expected-output: (
      ".a": (background: (0ms: red, 500ms: blue)),
      ".b": (background: (1400ms: purple, 1900ms: green)),
      _kf-map-type: eptv,
      _kf-infinite-loop: true
    );

    @include assert-equal(
      kf-loop($input),
      $expected-output
    );
  }

  @include it('When passed 2 arguments loops $animation-map (2nd argument) number of $time (1st argument)') {
    $input: (
      0ms: ('.a': (background: red)),
      500ms: ('.a': (background: blue)),
      1400ms: ('.b': (background: purple)),
      1900ms: ('.b': (background: green))
    );
    $expected-output: (
      0ms: (".a": (background: red)),
      500ms: (".a": (background: blue)),
      1400ms: (".b": (background: purple)),
      1900ms: (".b": (background: green)),
      1901ms: (".a": (background: red)),
      2401ms: (".a": (background: blue)),
      3301ms: (".b": (background: purple)),
      3801ms: (".b": (background: green)),
      3802ms: (".a": (background: red)),
      4302ms: (".a": (background: blue)),
      5202ms: (".b": (background: purple)),
      5702ms: (".b": (background: green)),
      _kf-map-type: tepv,
      _kf-duration: 5700ms
    );

    @include assert-equal(
      kf-loop(3, $input),
      $expected-output
    );
  }
}