[Color 4] Add tests to match updated spec (#1995) #1541

Job	Run time
JS API \| Embedded \| Node lts/* \| ubuntu-latest	4m 36s
JS API \| Pure JS \| Node lts/* \| ubuntu-latest	1m 13s
JS API \| Embedded \| Node lts/* \| windows-latest	7m 22s
Language \| Dart Sass \| Dart stable	58s
JS API \| Pure JS \| Browser	1m 42s
JS API \| Pure JS \| Node lts/* \| windows-latest	3m 26s
Language \| Dart Sass \| Dart dev	1m 3s
JS API \| Embedded \| Node lts/* \| macos-latest	3m 57s
JS API \| Pure JS \| Node lts/* \| macos-latest	1m 16s
JS API \| Embedded \| Node lts/-1 \| ubuntu-latest	4m 42s
JS API \| Pure JS \| Node lts/-1 \| ubuntu-latest	1m 13s
Lint spec files	21s
JS API \| Embedded \| Node lts/-2 \| ubuntu-latest	5m 3s
Static analysis	19s
JS API \| Pure JS \| Node lts/-2 \| ubuntu-latest	1m 18s
JS API \| Embedded \| Node lts/-3 \| ubuntu-latest	1m 34s
JS API \| Pure JS \| Node lts/-3 \| ubuntu-latest	1m 23s
Unit tests	40s
	42m 6s

Provide feedback