test(svg): add mouse interactivity coverage

Author: chavanGaneshDatta

lib/svg/constants.mouse-interactivity.test.ts

@@ -0,0 +1,43 @@
+// lib/svg/constants.mouse-interactivity.test.ts
+
+import { describe, expect, it } from 'vitest';
+import {
+  SVG_WIDTH,
+  SVG_HEIGHT,
+  FONT_MAP,
+  CONTRIBUTION_MILESTONES,
+  STREAK_MILESTONES,
+} from './constants';
+
+describe('SVG Constants Mouse Interactivity', () => {
+  it('provides valid SVG dimensions for interactive layouts', () => {
+    expect(SVG_WIDTH).toBeGreaterThan(0);
+    expect(SVG_HEIGHT).toBeGreaterThan(0);
+  });
+
+  it('exposes font mappings used by interactive SVG elements', () => {
+    expect(FONT_MAP).toHaveProperty('jetbrains');
+    expect(FONT_MAP).toHaveProperty('fira');
+    expect(FONT_MAP).toHaveProperty('roboto');
+  });
+
+  it('defines contribution milestone values in ascending order', () => {
+    const sorted = [...CONTRIBUTION_MILESTONES].sort((a, b) => a - b);
+
+    expect(CONTRIBUTION_MILESTONES).toEqual(sorted);
+  });
+
+  it('defines streak milestone values in ascending order', () => {
+    const sorted = [...STREAK_MILESTONES].sort((a, b) => a - b);
+
+    expect(STREAK_MILESTONES).toEqual(sorted);
+  });
+
+  it('contains milestone values suitable for interactive overlays', () => {
+    expect(CONTRIBUTION_MILESTONES.length).toBeGreaterThan(0);
+    expect(STREAK_MILESTONES.length).toBeGreaterThan(0);
+
+    expect(CONTRIBUTION_MILESTONES.every((v) => v > 0)).toBe(true);
+    expect(STREAK_MILESTONES.every((v) => v > 0)).toBe(true);
+  });
+});