fix(game-ui): 국가색 배경의 대비 전경색을 보완

2026-08-19 14:19:06 +00:00
parent 78f75349fc
commit 8ed2b68878
19 changed files with 261 additions and 123 deletions
@@ -0,0 +1,29 @@
+import assert from 'node:assert/strict';
+import { describe, it } from 'node:test';
+
+import {
+    isLegacyNationColorBright,
+    legacyLuminanceTextColor,
+    legacyNationTextColor,
+} from '../src/utils/legacyNationColor.ts';
+
+void describe('legacy nation color contrast', () => {
+    void it('matches Ref isBrightColor luminance and its strict threshold', () => {
+        assert.equal(isLegacyNationColorBright('#FFFF00'), true);
+        assert.equal(isLegacyNationColorBright('#008000'), false);
+        assert.equal(isLegacyNationColorBright('#20B2AA'), false);
+        assert.equal(isLegacyNationColorBright('#6495ED'), true);
+        assert.equal(isLegacyNationColorBright('not-a-color'), false);
+    });
+
+    void it('uses black text on bright backgrounds and white text on dark backgrounds', () => {
+        assert.equal(legacyLuminanceTextColor('#FFFF00'), '#000000');
+        assert.equal(legacyLuminanceTextColor('#008000'), '#FFFFFF');
+        assert.equal(legacyLuminanceTextColor('#A9A9A9'), '#000000');
+    });
+
+    void it('keeps the separate Ref PHP newColor palette contract', () => {
+        assert.equal(legacyNationTextColor('#A9A9A9'), '#FFFFFF');
+        assert.equal(legacyNationTextColor('#FFFF00'), '#000000');
+    });
+});