Function fetchImpl

tests/microsoft-email.test.js:75–111

(url, options = {})

test('fetchMicrosoftMailboxMessages 会回退到可用的 token 策略并保留邮箱夹信息', async () => {
  const requests = [];
  const fetchImpl = async (url, options = {}) => {
    requests.push({ url, options });
    if (String(url).includes('/oauth2/v2.0/token')) {
      const params = new URLSearchParams(String(options.body || ''));
      if (String(url).includes('/common/') && params.get('scope')?.includes('Mail.Read')) {
        return {
          ok: false,
          status: 400,
          statusText: 'Bad Request',
          text: async () => JSON.stringify({ error_description: 'common delegated failed' }),
        };
      }
      return {
        ok: true,
        json: async () => ({
          access_token: 'access-token-1',
          refresh_token: 'refresh-token-next',
        }),
      };
    }

    assert.match(String(url), /graph\.microsoft\.com\/v1\.0\/me\/mailFolders\/junkemail\/messages/);
    return {
      ok: true,
      json: async () => ({
        value: [
          {
            from: { emailAddress: { address: 'noreply@openai.com' } },
            subject: 'OpenAI verification',
            bodyPreview: 'Use 445566 to continue',
            receivedDateTime: '2026-04-14T10:06:00.000Z',
            id: 'mail-1',
          },
        ],
      }),
    };
  };

  const result = await fetchMicrosoftMailboxMessages({
    clientId: 'client-1',