[Color 4] Add tests to match updated spec (#1995)

spec/core_functions/color/adjust/error/missing.hrx

@@ -0,0 +1,67 @@
+<===> legacy/input.scss
+@use 'sass:color';
+a {b: color.adjust(rgb(none 0 0), $red: 10)}
+
+<===> legacy/error
+Error: $red: Because the CSS working group is still deciding on the best behavior, Sass doesn't currently support modifying missing channels (color: rgb(none 0 0)).
+  ,
+2 | a {b: color.adjust(rgb(none 0 0), $red: 10)}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet
+
+<===>
+================================================================================
+<===> modern/input.scss
+@use 'sass:color';
+a {b: color.adjust(lab(none 0 0), $lightness: 10%)}
+
+<===> modern/error
+Error: $lightness: Because the CSS working group is still deciding on the best behavior, Sass doesn't currently support modifying missing channels (color: lab(none 0 0)).
+  ,
+2 | a {b: color.adjust(lab(none 0 0), $lightness: 10%)}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet
+
+<===>
+================================================================================
+<===> powerless/legacy/input.scss
+@use 'sass:color';
+a {b: color.adjust(grey, $hue: 10deg, $space: hsl)}
+
+<===> powerless/legacy/error
+Error: $hue: Because the CSS working group is still deciding on the best behavior, Sass doesn't currently support modifying missing channels (color: hsl(none 0% 50.1960784314%)).
+  ,
+2 | a {b: color.adjust(grey, $hue: 10deg, $space: hsl)}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet
+
+<===>
+================================================================================
+<===> powerless/modern/input.scss
+@use 'sass:color';
+a {b: color.adjust(grey, $hue: 10deg, $space: lch)}
+
+<===> powerless/modern/error
+Error: $hue: Because the CSS working group is still deciding on the best behavior, Sass doesn't currently support modifying missing channels (color: lch(53.5850134522% 0 none)).
+  ,
+2 | a {b: color.adjust(grey, $hue: 10deg, $space: lch)}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet
+
+<===>
+================================================================================
+<===> alpha/input.scss
+@use 'sass:color';
+a {b: color.adjust(rgb(0 0 0 / none), $alpha: 0.1)}
+
+<===> alpha/error
+Error: $alpha: Because the CSS working group is still deciding on the best behavior, Sass doesn't currently support modifying missing channels (color: rgb(0 0 0 / none)).
+  ,
+2 | a {b: color.adjust(rgb(0 0 0 / none), $alpha: 0.1)}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet

spec/core_functions/color/adjust/space.hrx

@@ -1,8 +1,151 @@
-<===> input.scss
+<===> identical/input.scss
+@use 'sass:color';
+a {b: color.adjust(oklch(50% 0.2 0deg), $space: lab)}
+
+<===> identical/output.css
+a {
+  b: oklch(50% 0.2 0deg);
+}
+
+<===>
+================================================================================
+<===> legacy/to_legacy/input.scss
+@use 'sass:color';
+a {b: color.adjust(pink, $saturation: -5%, $space: hsl)}
+
+<===> legacy/to_legacy/output.css
+a {
+  b: rgb(253.425, 193.575, 204.025);
+}
+
+<===>
+================================================================================
+<===> legacy/to_modern/input.scss
 @use 'sass:color';
 a {b: color.adjust(pink, $chroma: -0.01, $space: oklch)}
 
-<===> output.css
+<===> legacy/to_modern/output.css
 a {
   b: rgb(249.5073873455, 194.8272088475, 204.1290090118);
 }
+
+<===>
+================================================================================
+<===> modern/to_legacy/input.scss
+@use 'sass:color';
+a {b: color.adjust(lab(50% 10 -20), $saturation: 5%, $space: hsl)}
+
+<===> modern/to_legacy/output.css
+a {
+  b: lab(48.2797960499% 13.4192461856 -26.2119638245);
+}
+
+<===>
+================================================================================
+<===> modern/to_modern/input.scss
+@use 'sass:color';
+a {b: color.adjust(lab(50% 10 -20), $chroma: 0.01, $space: oklch)}
+
+<===> modern/to_modern/output.css
+a {
+  b: lab(49.8635566117% 11.8934236813 -23.2342925555);
+}
+
+<===>
+================================================================================
+<===> powerless/legacy/input.scss
+@use 'sass:color';
+a {b: color.adjust(hsl(0deg 0% 50%), $space: lab)}
+
+<===> powerless/legacy/output.css
+a {
+  b: hsl(0, 0%, 50%);
+}
+
+<===>
+================================================================================
+<===> powerless/modern/input.scss
+@use 'sass:color';
+a {b: color.adjust(oklch(50% 0 0deg), $space: lab)}
+
+<===> powerless/modern/output.css
+a {
+  b: oklch(50% 0 none);
+}
+
+<===>
+================================================================================
+<===> missing/legacy/same/implicit/input.scss
+@use 'sass:color';
+a {b: color.adjust(rgb(none none none))}
+
+<===> missing/legacy/same/implicit/output.css
+a {
+  b: rgb(none none none);
+}
+
+<===>
+================================================================================
+<===> missing/legacy/same/explicit/input.scss
+@use 'sass:color';
+a {b: color.adjust(rgb(none none none), $space: rgb)}
+
+<===> missing/legacy/same/explicit/output.css
+a {
+  b: rgb(none none none);
+}
+
+<===>
+================================================================================
+<===> missing/legacy/analogous/legacy/input.scss
+@use 'sass:color';
+a {b: color.adjust(hsl(none 50% 50%), $space: hwb)}
+
+<===> missing/legacy/analogous/legacy/output.css
+a {
+  b: hsl(0, 50%, 50%);
+}
+
+<===>
+================================================================================
+<===> missing/legacy/analogous/modern/input.scss
+@use 'sass:color';
+a {b: color.adjust(rgb(none none none), $space: display-p3)}
+
+<===> missing/legacy/analogous/modern/output.css
+a {
+  b: black;
+}
+
+<===>
+================================================================================
+<===> missing/modern/same/implicit/input.scss
+@use 'sass:color';
+a {b: color.adjust(color(srgb none none none))}
+
+<===> missing/modern/same/implicit/output.css
+a {
+  b: color(srgb none none none);
+}
+
+<===>
+================================================================================
+<===> missing/modern/same/explicit/input.scss
+@use 'sass:color';
+a {b: color.adjust(color(srgb none none none), $space: srgb)}
+
+<===> missing/modern/same/explicit/output.css
+a {
+  b: color(srgb none none none);
+}
+
+<===>
+================================================================================
+<===> missing/modern/analogous/input.scss
+@use 'sass:color';
+a {b: color.adjust(color(srgb none none none), $space: display-p3)}
+
+<===> missing/modern/analogous/output.css
+a {
+  b: color(srgb none none none);
+}

spec/core_functions/color/adjust_hue.hrx

@@ -343,3 +343,16 @@ Error: $degrees: blue is not a number.
   |       ^^^^^^^^^^^^^^^^^^^^^
   '
   input.scss 1:7  root stylesheet
+
+<===>
+================================================================================
+<===> error/non_legacy/input.scss
+a {b: adjust-hue(lch(0% 0 0deg), 10deg)}
+
+<===> error/non_legacy/error
+Error: adjust-hue() is only supported for legacy colors. Please use color.adjust() instead with an explicit $space argument.
+  ,
+1 | a {b: adjust-hue(lch(0% 0 0deg), 10deg)}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 1:7  root stylesheet

spec/core_functions/color/alpha.hrx

@@ -217,3 +217,17 @@ Error: $color: 1=c is not a color.
   |       ^^^^^^^^^^^^^^^^^^^^^
   '
   input.scss 1:7  root stylesheet
+
+<===>
+================================================================================
+<===> error/non_legacy/input.scss
+@use 'sass:color';
+a {b: color.alpha(color(srgb 1 1 1))}
+
+<===> error/non_legacy/error
+Error: color.alpha() is only supported for legacy colors. Please use color.channel() instead.
+  ,
+2 | a {b: color.alpha(color(srgb 1 1 1))}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet

spec/core_functions/color/blackness.hrx

@@ -213,3 +213,17 @@ Error: $color: 1 is not a color.
   |       ^^^^^^^^^^^^^^^^^^
   '
   input.scss 2:7  root stylesheet
+
+<===>
+================================================================================
+<===> error/non_legacy/input.scss
+@use 'sass:color';
+a {b: color.blackness(color(srgb 1 1 1))}
+
+<===> error/non_legacy/error
+Error: color.blackness() is only supported for legacy colors. Please use color.channel() instead with an explicit $space argument.
+  ,
+2 | a {b: color.blackness(color(srgb 1 1 1))}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet

spec/core_functions/color/blue.hrx

@@ -134,3 +134,17 @@ Error: $color: 1 is not a color.
   |       ^^^^^^^
   '
   input.scss 1:7  root stylesheet
+
+<===>
+================================================================================
+<===> error/non_legacy/input.scss
+@use 'sass:color';
+a {b: color.blue(color(srgb 1 1 1))}
+
+<===> error/non_legacy/error
+Error: color.blue() is only supported for legacy colors. Please use color.channel() instead with an explicit $space argument.
+  ,
+2 | a {b: color.blue(color(srgb 1 1 1))}
+  |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+  '
+  input.scss 2:7  root stylesheet