如何验证数组中属性的长度并确保不显示额外的属性？

Question

我已将输入的长度验证为 var resp =(body.input).length 并确保它不为 0。但我还想验证每组中只有名字、姓氏和 rollno 可用并且计数将始终为 3。如何验证这是邮递员测试？

响应正文：

{
"success": true,
"input":[
{
    firstname:"Ram"
    lastname:"Lakshmanan"
    rollno: "11"
},
{
    firstname:"Pravi"
    lastname:"Reshma"
    rollno: "12"
}
]
}

我的测试如下所示：

var i;
for(i=0 ; i< resp ; i++){

   var resp_firstname = body.input[i].firstname;

   pm.test("Verify first name is available and not empty",function(){
      pm.expect(resp_firstname).to.exist;
      pm.expect(resp_firstname).to.not.eql();
}

Answer 1

首先问题中提供的响应正文不是有效的JSON。
有效 json 数据应如下所示 =

{
   "success":true,
   "input":[
      {
         "firstname":"Ram",
         "lastname":"Lakshmanan",
         "rollno":"11"
      },
      {
         "firstname":"Pravi",
         "lastname":"Reshma",
         "rollno":"12"
      }
   ]
}

你可以这样做-

pm.test("Verify object has expected properties", function () {
    // loop through input array
    for (var i = 0; i < Object.keys(json.input).length; i++) {
        console.log(i);
        pm.expect(json.input[i]).to.have.property("firstname");
        pm.expect(json.input[i]).to.have.property("lastname");
        pm.expect(json.input[1]).to.have.property("rollno");
        //assert length of properties
        pm.expect(Object.keys(json.input[i]).length).to.eql(3);
    }
});

如何验证数组中属性的长度并确保不显示额外的属性？

How to verify the length of attributes in an array and make sure no extra attributes are displayed?

javascript

postman

postman-testcase