Create get-short-address.test.ts

src/lib/__tests__/get-short-address.test.ts

@@ -0,0 +1,18 @@
+import { describe, expect, it } from 'vitest';
+import getShortAddress from '../get-short-address';
+
+describe('getShortAddress', () => {
+  it('returns an empty string for falsy or too-short non-domain addresses', () => {
+    expect(getShortAddress('')).toBe('');
+    expect(getShortAddress('short-address')).toBe('');
+  });
+
+  it('returns domain-style addresses unchanged', () => {
+    expect(getShortAddress('music-posting.eth')).toBe('music-posting.eth');
+    expect(getShortAddress('music-posting.bso')).toBe('music-posting.bso');
+  });
+
+  it('returns the middle slice for long hexadecimal addresses', () => {
+    expect(getShortAddress('0x1234567890abcdef1234567890abcdef12345678')).toBe('7890abcdef12');
+  });
+});