Question

以下单元测试失败，因为日期是英文，即“2017年6月16日星期五”，而不是预期的荷兰语版本，即“vrijdag 2017 juni 2017”。

 test('returns dutch version of date when given ISO version', () => {
    const dateToFormat = new Date('2017-06-16');

    const options = {
        weekday: 'long',
        year: 'numeric',
        month: 'long',
        day: 'numeric',
    };

    const result = new Intl
        .DateTimeFormat('nl-NL', options)
        .format(dateToFormat);

    expect(result).toBe('vrijdag 16 juni 2017');
 });

为什么这个单元测试失败了？

环境：

Node.js：6.11.0
npm：3.10.10
Jest：18.1.0
操作系统：Ubuntu 16.04

单元测试失败的日志：

FAIL  [path-to-file]
  returns dutch version of date when given ISO version

    expect(received).toBe(expected)

    Expected value to be (using ===):
      "vrijdag 16 juni 2017"
    Received:
      "Friday, June 16, 2017"

      at Object.<anonymous> ([path-to-file]:15:20)
      at emitTwo (events.js:106:13)
      at process.emit (events.js:191:7)
      at process.nextTick (internal/child_process.js:758:12)
      at _combinedTickCallback (internal/process/next_tick.js:73:7)
      at process._tickCallback (internal/process/next_tick.js:104:9)

使用Jest单元测试进行日期本地化

0 个答案: