tests: add CGColor tests - #25
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fredkiefer
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Jul 26, 2026
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Adds a gnustep-tests suite for CGColor under Tests/opal, checking the generic RGB, gray and CMYK colours: their components, alpha, number of components, equality, copy and copy-with-alpha, the colour space model, and rendering (filling a bitmap context with a device colour and reading the pixel back). Expected values were checked against Apple CoreGraphics on a macOS runner.
Five checks are marked hopeful, with the fix sent separately: