chore(plugins/postcss-rgb-mapping): refactor tests

Author: marissahuysentruyt

plugins/postcss-rgb-mapping/expected/modern.css

@@ -6,9 +6,9 @@
   --seafoam-200: rgba(var(--seafoam-200-rgb) / var(--seafoam-200-opacity));
   --seafoam-300-rgb: 206 247 243;
   --seafoam-300: rgba(var(--seafoam-300-rgb));
-  --spectrum-transparent-white-100-rgb: 100, 100, 100;
-  --spectrum-transparent-white-100-opacity: 0.5;
-  --spectrum-transparent-white-100: rgba(var(--spectrum-transparent-white-100-rgb), var(--spectrum-transparent-white-100-opacity));
+  --spectrum-transparent-white-100-rgb: 100 100 100;
+  --spectrum-transparent-white-100-opacity: 50%;
+  --spectrum-transparent-white-100: rgba(var(--spectrum-transparent-white-100-rgb) / var(--spectrum-transparent-white-100-opacity));
   --disabled-static-white-background-color-rgb: var(--spectrum-transparent-white-100-rgb);
   --disabled-static-white-background-color-opacity: var(--spectrum-transparent-white-100-opacity);
   --disabled-static-white-background-color: rgba(var(--disabled-static-white-background-color-rgb) / var(--disabled-static-white-background-color-opacity));

plugins/postcss-rgb-mapping/fixtures/basic.css

@@ -2,8 +2,6 @@
   --seafoam-100: rgba(206, 247, 243);
   --seafoam-200: rgba(206, 247, 243, 0.5);
   --seafoam-300: rgb(206, 247, 243);
-  --spectrum-transparent-white-100-rgb: 100, 100, 100;
-  --spectrum-transparent-white-100-opacity: 0.5;
-  --spectrum-transparent-white-100: rgba(var(--spectrum-transparent-white-100-rgb), var(--spectrum-transparent-white-100-opacity));
+  --spectrum-transparent-white-100: rgba(100, 100, 100, 0.5);
   --disabled-static-white-background-color: var(--spectrum-transparent-white-100);
 }