freeCodeCamp/curriculum/challenges/chinese/06-information-security-and-quality-assurance/quality-assurance-and-testing-with-chai/test-if-an-object-is-an-instance-of-a-constructor.chinese.md

id	title	challengeType	videoUrl	localeTitle
587d824e367417b2b2512c57	Test if an Object is an Instance of a Constructor	2		测试对象是否是构造函数的实例

Description

提醒一下，这个项目是基于Glitch的以下入门项目构建的，或者是从GitHub克隆的。 #instanceOf声明对象是构造函数的实例。在适当的地方使用#instanceOf或#notInstanceOf

Instructions

Tests

tests:
  - text: 所有测试都应该通过
    testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=17").then(data => { assert.equal(data.state,"passed"); }, xhr => { throw new Error(xhr.responseText); })'
  - text: 选择正确的断言 -  instanceOf与notInstanceOf
    testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=17").then(data => { assert.equal(data.assertions[0].method, "notInstanceOf", "myCar is not an instance of Plane"); }, xhr => { throw new Error(xhr.responseText); })'
  - text: 选择正确的断言 -  instanceOf与notInstanceOf
    testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=17").then(data => { assert.equal(data.assertions[1].method, "instanceOf", "airlinePlane is an instance of Plane"); }, xhr => { throw new Error(xhr.responseText); })'
  - text: 选择正确的断言 -  instanceOf与notInstanceOf
    testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=17").then(data => { assert.equal(data.assertions[2].method, "instanceOf", "everything is an Object in JavaScript..."); }, xhr => { throw new Error(xhr.responseText); })'
  - text: 选择正确的断言 -  instanceOf与notInstanceOf
    testString: 'getUserInput => $.get(getUserInput("url") + "/_api/get-tests?type=unit&n=17").then(data => { assert.equal(data.assertions[3].method, "notInstanceOf", "myCar.wheels is not an instance of String"); }, xhr => { throw new Error(xhr.responseText); })'

Challenge Seed

Solution

// solution required