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// sass-lint:disable no-color-literals zero-unit
@use 'true' as *;
@use '../src/easing';
@use '../src/gradients';
@include describe('gradients') {
@include it('easing-gradient') {
$gradient1: gradients.easing-gradient(
linear,
to right,
#000,
ease-in-quad,
transparent
);
$expected1: linear-gradient(
to right,
#000 0,
mix(transparent, #000, easing.ease-in-quad(0.25) * 100%) 25%,
mix(transparent, #000, easing.ease-in-quad(0.5) * 100%) 50%,
mix(transparent, #000, easing.ease-in-quad(0.75) * 100%) 75%,
transparent 100%
);
@include assert-equal($gradient1, $expected1, 'Simple linear gradient');
// ---------------------------------------------------------------------------
$gradient2: gradients.easing-gradient(
radial,
1em 2em at 50% 60%,
#000,
ease-out-cubic,
transparent
);
$expected2: radial-gradient(
1em 2em at 50% 60%,
#000 0,
mix(transparent, #000, easing.ease-out-cubic(0.25) * 100%) 25%,
mix(transparent, #000, easing.ease-out-cubic(0.5) * 100%) 50%,
mix(transparent, #000, easing.ease-out-cubic(0.75) * 100%) 75%,
transparent 100%
);
@include assert-equal($gradient2, $expected2, 'Simple radial gradient');
// ---------------------------------------------------------------------------
$gradient3: gradients.easing-gradient(
linear,
to right,
#000 2em,
ease-in-quad,
transparent 10em
);
$expected3: linear-gradient(
to right,
#000 2em,
mix(transparent, #000, easing.ease-in-quad(0.25) * 100%) 4em,
mix(transparent, #000, easing.ease-in-quad(0.5) * 100%) 6em,
mix(transparent, #000, easing.ease-in-quad(0.75) * 100%) 8em,
transparent 10em
);
@include assert-equal($gradient3, $expected3, 'Linear gradient with positioned color stops');
// ---------------------------------------------------------------------------
$gradient4: gradients.easing-gradient(
linear,
to right,
#000 20%,
ease-in-quad,
transparent calc(20% + 10em)
);
$expected4: linear-gradient(
to right,
#000 20%,
mix(transparent, #000, easing.ease-in-quad(0.25) * 100%) calc(20% + (20% + 10em - 20%) * 0.25),
mix(transparent, #000, easing.ease-in-quad(0.5) * 100%) calc(20% + (20% + 10em - 20%) * 0.5),
mix(transparent, #000, easing.ease-in-quad(0.75) * 100%) calc(20% + (20% + 10em - 20%) * 0.75),
transparent calc(20% + 10em)
);
@include assert-equal($gradient4, $expected4, 'More advanced linear gradient with positioned color stops');
// ---------------------------------------------------------------------------
$gradient5: gradients.easing-gradient(
linear,
to right,
#000 2em,
#f00 7em,
ease-in-quad,
transparent 10em
);
$expected5: linear-gradient(
to right,
#000 2em,
#f00 7em,
mix(transparent, #f00, easing.ease-in-quad(0.25) * 100%) 7em + 3em * 0.25,
mix(transparent, #f00, easing.ease-in-quad(0.5) * 100%) 7em + 3em * 0.5,
mix(transparent, #f00, easing.ease-in-quad(0.75) * 100%) 7em + 3em * 0.75,
transparent 10em
);
@include assert-equal($gradient5, $expected5, 'Linear gradient with 3 positioned color stops, 1 easing transitions');
// ---------------------------------------------------------------------------
$gradient6: gradients.easing-gradient(
linear,
to right,
#000 2em,
ease-in-quad,
#f00 7em,
ease-in-quad,
transparent 10em
);
$expected6: linear-gradient(
to right,
#000 2em,
mix(#f00, #000, easing.ease-in-quad(0.25) * 100%) 2em + 5em * 0.25,
mix(#f00, #000, easing.ease-in-quad(0.5) * 100%) 2em + 5em * 0.5,
mix(#f00, #000, easing.ease-in-quad(0.75) * 100%) 2em + 5em * 0.75,
#f00 7em,
mix(transparent, #f00, easing.ease-in-quad(0.25) * 100%) 7em + 3em * 0.25,
mix(transparent, #f00, easing.ease-in-quad(0.5) * 100%) 7em + 3em * 0.5,
mix(transparent, #f00, easing.ease-in-quad(0.75) * 100%) 7em + 3em * 0.75,
transparent 10em
);
@include assert-equal($gradient6, $expected6, 'Linear gradient with 3 positioned color stops, 2 easing transitions');
// ---------------------------------------------------------------------------
$gradient7: gradients.easing-gradient(
linear,
to right,
#000 2em,
ease-in-quad,
#f00,
ease-in-quad,
transparent 10em
);
$expected7: linear-gradient(
to right,
#000 2em,
mix(#f00, #000, easing.ease-in-quad(0.25) * 100%) 2em + 4em * 0.25,
mix(#f00, #000, easing.ease-in-quad(0.5) * 100%) 2em + 4em * 0.5,
mix(#f00, #000, easing.ease-in-quad(0.75) * 100%) 2em + 4em * 0.75,
#f00 6em,
mix(transparent, #f00, easing.ease-in-quad(0.25) * 100%) 6em + 4em * 0.25,
mix(transparent, #f00, easing.ease-in-quad(0.5) * 100%) 6em + 4em * 0.5,
mix(transparent, #f00, easing.ease-in-quad(0.75) * 100%) 6em + 4em * 0.75,
transparent 10em
);
@include assert-equal($gradient7, $expected7, 'Linear gradient with 2 / 3 positioned color stops, 2 easing transitions');
// ---------------------------------------------------------------------------
$gradient8: gradients.easing-gradient(
linear,
to right,
#000,
ease-in-quad,
#f00,
ease-in-quad,
transparent
);
$expected8: linear-gradient(
to right,
#000 0,
mix(#f00, #000, easing.ease-in-quad(0.25) * 100%) 50% * 0.25,
mix(#f00, #000, easing.ease-in-quad(0.5) * 100%) 50% * 0.5,
mix(#f00, #000, easing.ease-in-quad(0.75) * 100%) 50% * 0.75,
#f00 50%,
mix(transparent, #f00, easing.ease-in-quad(0.25) * 100%) 50% + 50% * 0.25,
mix(transparent, #f00, easing.ease-in-quad(0.5) * 100%) 50% + 50% * 0.5,
mix(transparent, #f00, easing.ease-in-quad(0.75) * 100%) 50% + 50% * 0.75,
transparent 100%
);
@include assert-equal($gradient8, $expected8, 'Linear gradient with 0 / 3 positioned color stops, 2 easing transitions');
// ---------------------------------------------------------------------------
$gradient9: gradients.easing-gradient(
linear,
to right,
#000,
ease-in-quad,
#f00,
ease-in-quad,
transparent 20em
);
$expected9: linear-gradient(
to right,
#000 0,
mix(#f00, #000, easing.ease-in-quad(0.25) * 100%) 10em * 0.25,
mix(#f00, #000, easing.ease-in-quad(0.5) * 100%) 10em * 0.5,
mix(#f00, #000, easing.ease-in-quad(0.75) * 100%) 10em * 0.75,
#f00 10em,
mix(transparent, #f00, easing.ease-in-quad(0.25) * 100%) 10em + 10em * 0.25,
mix(transparent, #f00, easing.ease-in-quad(0.5) * 100%) 10em + 10em * 0.5,
mix(transparent, #f00, easing.ease-in-quad(0.75) * 100%) 10em + 10em * 0.75,
transparent 20em
);
@include assert-equal($gradient9, $expected9, 'Linear gradient with 1 / 3 positioned color stops, 2 easing transitions');
// ---------------------------------------------------------------------------
$gradient10: gradients.easing-gradient(
linear,
to right,
#000,
cubic-bezier 0.47 0 0.745 0.715,
transparent
);
$expected10: linear-gradient(
to right,
#000 0,
mix(transparent, #000, easing.cubic-bezier(0.47, 0, 0.745, 0.715, 0.25) * 100%) 25%,
mix(transparent, #000, easing.cubic-bezier(0.47, 0, 0.745, 0.715, 0.5) * 100%) 50%,
mix(transparent, #000, easing.cubic-bezier(0.47, 0, 0.745, 0.715, 0.75) * 100%) 75%,
transparent 100%
);
@include assert-equal($gradient10, $expected10, 'Simple linear gradient with custom cubic-bezier easing');
// ---------------------------------------------------------------------------
$gradient11: gradients.easing-gradient(
linear,
to right,
#000,
steps 4 jump-start,
transparent
);
$expected11: linear-gradient(
to right,
#000 0,
mix(transparent, #000, 0.25 * 100%) 0,
mix(transparent, #000, 0.25 * 100%) 25%,
mix(transparent, #000, 0.5 * 100%) 25%,
mix(transparent, #000, 0.5 * 100%) 50%,
mix(transparent, #000, 0.75 * 100%) 50%,
mix(transparent, #000, 0.75 * 100%) 75%,
transparent 75%,
transparent 100%
);
@include assert-equal($gradient11, $expected11, 'Simple linear gradient with custom steps easing');
}
}
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