test files

libs/ui/src/lib/input/phone.spec.ts

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+import { describe, expect, it } from 'vitest';
+import { optionalPhoneNumber, phoneNumber } from './phone';
+
+describe('phoneNumber', () => {
+  it('normalizes a legacy Ethiopian national number to E.164', () => {
+    expect(phoneNumber.parse('0911223344')).toBe('+251911223344');
+  });
+
+  it('passes an Ethiopian E.164 number through unchanged', () => {
+    expect(phoneNumber.parse('+251911223344')).toBe('+251911223344');
+  });
+
+  it('accepts a valid international number', () => {
+    expect(phoneNumber.parse('+14155552671')).toBe('+14155552671');
+  });
+
+  it('rejects a too-short number', () => {
+    expect(() => phoneNumber.parse('+251911')).toThrow();
+  });
+
+  it('rejects non-numeric input', () => {
+    expect(() => phoneNumber.parse('abc')).toThrow();
+  });
+});
+
+describe('optionalPhoneNumber', () => {
+  it('allows a blank value', () => {
+    expect(optionalPhoneNumber.parse('')).toBe('');
+  });
+
+  it('still validates a non-blank value', () => {
+    expect(() => optionalPhoneNumber.parse('abc')).toThrow();
+  });
+});