前言
接口自动化中最常见的问题就是参数关联：如何把上个接口返回数据传个下个接口当入参。
cy.request() 发请求时，可以用 .as() 方法保存上个接口返回的对象，方便后面的接口调用数据。
cy.request()
cy.request() 可以发送 XHR 请求
访问接口地址：https://jsonplaceholder.cypress.io/comments
接口返回数据
[
{
"postId": 1,
"id": 1,
"name": "id labore ex et quam laborum",
"email": "Eliseo@gardner.biz",
"body": "laudantium enim quasi est quidem magnam voluptate ..."
},
{
"postId": 1,
"id": 2,
"name": "quo vero reiciendis velit similique earum",
"email": "Jayne_Kuhic@sydney.com",
"body": "est natus enim nihil est dolore omnis voluptatem ..."
}
.....
]
使用 cy.request() 发get请求，对 response 结果断言
/**
* Created by dell on 2020/6/5.
* 作者：上海-悠悠 交流QQ群:939110556
*/
describe(\'network request\', function() {
it("network request", function()
{
cy.request(\'https://jsonplaceholder.cypress.io/comments\')
.should((response) => {
expect(response.status).to.eq(200)
expect(response.body).to.have.length(500)
expect(response).to.have.property(\'headers\')
expect(response).to.have.property(\'duration\')
})
})
})
运行结果
参数关联
将上个接口的 response 数据传给下个请求
接口1：
GET https://jsonplaceholder.cypress.io/users?_limit=1
返回:
[
{
"id": 1,
"name": "Leanne Graham",
"username": "Bret",
"email": "Sincere@april.biz",
"address": {
"street": "Kulas Light",
"suite": "Apt. 556",
"city": "Gwenborough",
"zipcode": "92998-3874",
"geo": {
"lat": "-37.3159",
"lng": "81.1496"
}
},
"phone": "1-770-736-8031 x56442",
"website": "hildegard.org",
"company": {
"name": "Romaguera-Crona",
"catchPhrase": "Multi-layered client-server neural-net",
"bs": "harness real-time e-markets"
}
}
]
接口2：
POST https://jsonplaceholder.cypress.io/posts
body:
{
userId: user.id,
title: \'Cypress Test Runner\',
body: \'Fast, easy and reliable testing for anything that runs in a browser.\',
}
接口返回
{
"userId": 1,
"title": "Cypress Test Runner",
"body": "Fast, easy and reliable testing for anything that runs in a browser.",
"id": 101
}
.its() 生成接口返回对象关联案例
/**
* Created by dell on 2020/6/5.
* 作者：上海-悠悠 交流QQ群:939110556
*/
describe(\'network request\', function() {
it("pass the response data to the next request.", function()
{
// 先发一个请求，获取返回的接口数据
cy.request(\'https://jsonplaceholder.cypress.io/users?_limit=1\')
.its(\'body.0\') // 返回一个list,获取list第一个对象
.then((user) => {
expect(user).property(\'id\').to.be.a(\'number\')
// 发个新的post请求，userId用上个请求返回的数据
cy.request(\'POST\', \'https://jsonplaceholder.cypress.io/posts\', {
userId: user.id,
title: \'Cypress Test Runner\',
body: \'Fast, easy and reliable testing for anything that runs in a browser.\',
})
})
// 注意这里的值是第二个请求的返回值
// response 是一个新的 post对象
.then((response) => {
expect(response).property(\'status\').to.equal(201) // new entity created
expect(response).property(\'body\').to.contain({
title: \'Cypress Test Runner\',
})
// 我们不知道实际response返回的id值是多少 - 但是我们可以判断值 > 100
// since JSONPlaceholder has built-in 100 posts
expect(response.body).property(\'id\').to.be.a(\'number\')
.and.to.be.gt(100)
// we don\'t know the user id here - since it was in above closure
// so in this test just confirm that the property is there
expect(response.body).property(\'userId\').to.be.a(\'number\')
})
})
})
运行结果
.as() 别名使用
还有更好的处理方式，可以使用.as() 别名保存响应数据，以便稍后在共享测试上下文中使用
/**
* Created by dell on 2020/6/5.
* 作者：上海-悠悠 交流QQ群:939110556
*/
describe(\'network request\', function() {
it("save the response data shared test context", function()
{
cy.request(\'https://jsonplaceholder.cypress.io/users?_limit=1\')
.its(\'body.0\') // yields the first element of the returned list
.as(\'user\') // saves the object in the test context
.then(function () {
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