使用 Copilot 编写测试

Python

1import pytest
2from email_utils import is_valid_email
3
4def test_valid_emails():
5    assert is_valid_email("user@example.com") is True
6    assert is_valid_email("test.email@domain.co.uk") is True
7    assert is_valid_email("user+tag@mail.example.com") is True
8
9def test_invalid_emails():
10    assert is_valid_email("plainaddress") is False
11    assert is_valid_email("@missingdomain.com") is False
12    assert is_valid_email("missing@.com") is False
13
14def test_edge_case_subdomain():
15    assert is_valid_email("user@mail.example.com") is True

JavaScript

1// test_email.js
2const { isValidEmail } = require('./email_utils');
3
4test('valid emails', () => {
5  expect(isValidEmail('user@example.com')).toBe(true);
6  expect(isValidEmail('test.email@domain.co.uk')).toBe(true);
7  expect(isValidEmail('user+tag@mail.example.com')).toBe(true);
8});
9
10test('invalid emails', () => {
11  expect(isValidEmail('plainaddress')).toBe(false);
12  expect(isValidEmail('@missingdomain.com')).toBe(false);
13  expect(isValidEmail('missing@.com')).toBe(false);
14});
15
16test('edge case with sub-domain', () => {
17  expect(isValidEmail('user@mail.example.com')).toBe(true);
18});