Question

我进行了此测试，当测试失败并打印名为errorMessage的变量时，它以我认为似乎无法进行的方式打印。这是我的代码：

  function getNamesFromTypescriptFiles(): string[] {
    const items = fs.readdirSync('./tsc/names');
    const filenames = _.filter(items, (fn) => {
      return fn.indexOf('.spec.') === -1;
    });
    const names = _.map(filenames, (fn) =>
      fn.replace('.ts', '')
    );
    return names;
  }


  it('has an array element for each typescript file', () => {
    const names = getNamesFromTypescriptFiles();

    expect(names.length).toBeGreaterThan(0);

    for (const name of names) {
      expect(
        (nameArray as ReadonlyArray<string>).includes(
          name
        )
      ).toBe(
        true,
        'The nameArray did not include ' + name
      );
      const path = './story/names/' + name + '-content.twee';
      const exists = fs.existsSync(path);
      expect(exists).toBe(true, `Could not find ${path}`);

      const content = fs.readFileSync(path, { encoding: 'utf8' });

      const passageLines = _.filter(content.split('\n'), (line) => {
        return line.startsWith('::');
      });
      expect(passageLines.length).toBeGreaterThan(0);
      for (const passageLine of passageLines) {
        if (!/.*\[.*\].*/.test(passageLine)) {
          const errorMessage =
            name +
            ' has a passage named "' +
            passageLine +
            '" that has no tags. You must at least put an exclude tag.';
          console.log(errorMessage);
          expect(true).toBe(false, errorMessage);
        }
      }
    }
  });

打印时，看起来像这样：

  Message:
" that has no tags. You must at least put an exclude tag.'. Passage name
  Stack:
" that has no tags. You must at least put an exclude tag.'.med ":: Passage name
        at <Jasmine>

我无法弄清楚这种错误消息是怎么可能的（它在console.log中说的是相同的内容）：好像是将字符串切成两半然后重新排列一样。这怎么可能？似乎我有某种竞争状况，但据我所知，这不是并行运行的。

我正在使用打字稿，并在Jasmine中运行测试。就其价值而言，此测试始终会适当地失败，这只是错误的消息。

当此测试失败时，为什么错误消息无法正确打印？

0 个答案: