Files
freeCodeCamp/curriculum/challenges/chinese-traditional/06-quality-assurance/quality-assurance-and-testing-with-chai/test-if-a-value-is-a-string.md

2.3 KiB

id, title, challengeType, forumTopicId, dashedName
id title challengeType forumTopicId dashedName
587d824d367417b2b2512c52 測試某個值是否爲字符串 2 301599 test-if-a-value-is-a-string

--description--

請注意,本項目在這個 Replit 項目的基礎上進行開發。你也可以從 GitHub 上克隆。

isStringisNotString 斷言一個值是否爲字符串。

--instructions--

tests/1_unit-tests.js 中,Strings 套件裏標有 #13 的測試下,將每個 assert 改成 assert.isStringassert.isNotString 方法,通過測試(結果應該返回 true)。 不要修改傳給斷言的參數。

--hints--

應通過所有測試。

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=12').then(
    (data) => {
      assert.equal(data.state, 'passed');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

應該爲第一個斷言選擇正確的方法:isStringisNotString

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=12').then(
    (data) => {
      assert.equal(
        data.assertions[0].method,
        'isNotString',
        'A float number is not a string'
      );
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

應該爲第二個斷言選擇正確的方法:isStringisNotString

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=12').then(
    (data) => {
      assert.equal(
        data.assertions[1].method,
        'isString',
        'environment vars are strings (or undefined)'
      );
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

應該爲第三個斷言選擇正確的方法:isStringisNotString

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=12').then(
    (data) => {
      assert.equal(data.assertions[2].method, 'isString', 'A JSON is a string');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

--solutions--

/**
  Backend challenges don't need solutions, 
  because they would need to be tested against a full working project. 
  Please check our contributing guidelines to learn more.
*/