te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - Set the locale for `Date.prototype.toLocaleString` for Jest tests - Stack Overflow
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javascript - Set the locale for `Date.prototype.toLocaleString` for Jest tests - Stack Overflow

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We have front-end engineers around the world, so when we run Date.prototype.toLocaleString, we get different results. Sometimes, these differences show up in Jest tests. If someone in a different country runs a Jest test, it may fail because of toLocaleString. What are some ways to force Jest to use a certain locale?

As a bandaid solution, I added the following to the failing tests:

  const toLocaleString = Date.prototype.toLocaleString;
  // eslint-disable-next-line no-extend-native
  Date.prototype.toLocaleString = function(locale = 'en-US', ...args) {
    return toLocaleString.call(this, locale, ...args);
  };

We have front-end engineers around the world, so when we run Date.prototype.toLocaleString, we get different results. Sometimes, these differences show up in Jest tests. If someone in a different country runs a Jest test, it may fail because of toLocaleString. What are some ways to force Jest to use a certain locale?

As a bandaid solution, I added the following to the failing tests:

  const toLocaleString = Date.prototype.toLocaleString;
  // eslint-disable-next-line no-extend-native
  Date.prototype.toLocaleString = function(locale = 'en-US', ...args) {
    return toLocaleString.call(this, locale, ...args);
  };
Share Improve this question asked Oct 3, 2018 at 1:38 Leo JiangLeo Jiang 26.1k58 gold badges176 silver badges327 bronze badges 2
  • Since you just need to adjust for testing, it's better to change system locale before testing. – Alan haha Commented Oct 3, 2018 at 2:57
  • 1 I think this is okay. You are already mocking the date itself. Another mon scenario is to mock Date.now. So I think this is not such a "bandaid" solution after all. – Herman Starikov Commented Oct 4, 2018 at 19:38
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1 Answer 1

Reset to default 11

You should add full-icu to your dev dependencies:

npm i full-icu --save-dev

And run your tests like this:

NODE_ICU_DATA=node_modules/full-icu jest

So if you're running a npm script you package.json will look like this:

"scripts": {
   "dev": "...",
   "test": "NODE_ICU_DATA=node_modules/full-icu jest",
 },

In case of using React Scripts:

"scripts": {
   "dev": "...",
   "test": "NODE_ICU_DATA=node_modules/full-icu react-scripts test",
 },

And if you are using Jest VSCode extension you'll have to change this configuration:

`"jest.pathToJest": "npm run test --"`
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