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Initial public release

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CJ van den Berg 2024-02-29 00:00:15 +01:00
parent 3c3f068914
commit 4ece4babad
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test/tests_color.zig Normal file
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const std = @import("std");
const color = @import("color");
const RGB = color.RGB;
const rgb = RGB.from_u24;
test "contrast white/yellow" {
const a: u24 = 0xFFFFFF; // white
const b: u24 = 0x00FFFF; // yellow
const ratio = RGB.contrast(rgb(a), rgb(b));
try std.testing.expectApproxEqAbs(ratio, 1.25388109, 0.000001);
}
test "contrast white/blue" {
const a: u24 = 0xFFFFFF; // white
const b: u24 = 0x0000FF; // blue
const ratio = RGB.contrast(rgb(a), rgb(b));
try std.testing.expectApproxEqAbs(ratio, 8.59247135, 0.000001);
}
test "contrast black/yellow" {
const a: u24 = 0x000000; // black
const b: u24 = 0x00FFFF; // yellow
const ratio = RGB.contrast(rgb(a), rgb(b));
try std.testing.expectApproxEqAbs(ratio, 16.7479991, 0.000001);
}
test "contrast black/blue" {
const a: u24 = 0x000000; // black
const b: u24 = 0x0000FF; // blue
const ratio = RGB.contrast(rgb(a), rgb(b));
try std.testing.expectApproxEqAbs(ratio, 2.444, 0.000001);
}
test "best contrast black/white to yellow" {
const best = color.max_contrast(0x00FFFF, 0xFFFFFF, 0x000000);
try std.testing.expectEqual(best, 0x000000);
}
test "best contrast black/white to blue" {
const best = color.max_contrast(0x0000FF, 0xFFFFFF, 0x000000);
try std.testing.expectEqual(best, 0xFFFFFF);
}