freeCodeCamp/curriculum/challenges/chinese/06-quality-assurance/quality-assurance-and-testi.../test-if-a-value-is-an-array.md

1.9 KiB

id title challengeType forumTopicId dashedName
587d824d367417b2b2512c50 测试某个值是否为数组 2 301600 test-if-a-value-is-an-array

--description--

请注意,本项目在这个 Replit 项目的基础上进行开发。你也可以从 GitHub 上克隆。

--instructions--

tests/1_unit-tests.js 中,Arrays 套件里标有 #11 的测试下,将每个 assert 改成 assert.isArrayassert.isNotArray 方法,通过测试(结果应该返回 true)。 不要改变传入断言的参数。

--hints--

不应有未通过的测试

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=10').then(
    (data) => {
      assert.equal(data.state, 'passed');
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

请选择正确的断言——isArrayisNotArray

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=10').then(
    (data) => {
      assert.equal(
        data.assertions[0].method,
        'isArray',
        'String.prototype.split() returns an Array'
      );
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

请选择正确的断言——isArrayisNotArray

(getUserInput) =>
  $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=10').then(
    (data) => {
      assert.equal(
        data.assertions[1].method,
        'isNotArray',
        'Array.prototype.indexOf() returns a number'
      );
    },
    (xhr) => {
      throw new Error(xhr.responseText);
    }
  );

--solutions--

/**
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  because they would need to be tested against a full working project. 
  Please check our contributing guidelines to learn more.
*/