postman常用断言

二、常用断言

1.最基本的返回验证

//1.验证返回状态码是否是200
pm.test("Status code is 200", function () {
    pm.response.to.have.status(200);
});
//2.验证返回body内是否含有某个值
pm.test("Body matches string", function () {
    pm.expect(pm.response.text()).to.include("string_you_want_to_search");
});
//3.验证某个返回值是否是100
pm.test("Your test name", function () {
    var jsonData = pm.response.json();
    pm.expect(jsonData.value).to.eql(100);
});
//验证返回body中是否含有某个字符串
pm.test("Body is correct", function () {
    pm.response.to.have.body("response_body_string");
});
//验证返回头类型
pm.test("Content-Type is present", function () {
    pm.response.to.have.header("Content-Type");
});
//验证请求时长是否小于200ms
pm.test("Response time is less than 200ms", function () {
    pm.expect(pm.response.responseTime).to.be.below(200);
});
//验证返回码是否为200
pm.test("Successful POST request", function () {
    pm.expect(pm.response.code).to.be.oneOf([201,202]);
});
//验证返回数据中是否包含某个字符串
pm.test("Status code name has string", function () {
    pm.response.to.have.status("Created");
});
//验证json数据的微小验证器
var jsonObject = xml2Json(responseBody);
var schema = {
  "items": {
    "type": "boolean"
  }
};
var data1 = [true, false];
var data2 = [true, 123];
pm.test('Schema is valid', function() {
  pm.expect(tv4.validate(data1, schema)).to.be.true;
  pm.expect(tv4.validate(data2, schema)).to.be.true;
});

三、实例1：对返回的json数据中的key对应的value做校验：

返回数据如下：

 添加断言校验

tests["Status code is 200"] = responseCode.code === 200
pm.test("验证服务器返回 src 值为：1", function () {    var jsonData = pm.response.json();    var jsonDicData = jsonData.data[0].dataList[0].jump.value.value.src;    pm.expect(jsonDicData).to.eql(1);});pm.test("验证服务器返回 type 值为：41", function () {    var jsonData = pm.response.json();    var jsonDicData = jsonData.data[0].dataList[0].jump.type;    pm.expect(jsonDicData).to.eql(41);});pm.test("验证服务器返回 type 值为：1", function () {    var jsonData = pm.response.json();    var jsonDicData = jsonData.data[0].dataList[0].jump.value.type;    pm.expect(jsonDicData).to.eql(1);});

实例2：

返回值：

{
    "data": {
        "beginTime": 1604567324000,
        "endTime": 1606727324000,
        "examRemainCount": 2,
        "examId": 113
    },
    "timestamp": 1606466585273,
    "code": "SUCCESS",
    "msg": "成功",
    "success": true
}

断言：

// tests["字符串匹配——成功"] = responseBody.has("成功");
tests["Status code is 200"] = responseCode.code === 200pm.test("验证examid值为113",function(){
    var jd=pm.response.json();
    var examId=jd.data.examId
    pm.expect(examId).to.eql(113)
})
pm.test("验证msg值为成功",function(){
    var jd=pm.response.json();
    var msg=jd.msg
    pm.expect(msg).to.equal('成功')
})

postman常见断言方法介绍二

Setting an environment variable  (设置一个环境变量)

pm.environment.set("variable_key", "variable_value");

Setting a nested object as an environment variable (将嵌套对象设置为环境变量)

var array = [1, 2, 3, 4];
pm.environment.set("array", JSON.stringify(array, null, 2));

var obj = { a: [1, 2, 3, 4], b: { c: 'val' } };
pm.environment.set("obj", JSON.stringify(obj));

Getting an environment variable (获取环境变量)

pm.environment.get("variable_key");

Getting an environment variable (whose value is a stringified object)  获取一个环境变量（其值是一个字符串化的对象）

// These statements should be wrapped in a try-catch block if the data is coming from an unknown source.

var array = JSON.parse(pm.environment.get("array"));
var obj = JSON.parse(pm.environment.get("obj"));

Clear an environment variable (清除一个环境变量)

pm.environment.unset("variable_key");

Set a global variable (设置一个全局变量)

pm.globals.set("variable_key", "variable_value");

Get a global variable (获取一个全局变量)

pm.globals.get("variable_key");

Clear a global variable (清除全局变量)

pm.globals.unset("variable_key");

Get a variable (获取一个变量)

该函数在全局变量和活动环境中搜索变量。

pm.variables.get("variable_key");

Check if response body contains a string (检查响应主体是否包含字符串)

pm.test("Body matches string", function () {
    pm.expect(pm.response.text()).to.include("string_you_want_to_search");
});

Check if response body is equal to a string (检查响应主体是否等于一个字符串）

pm.test("Body is correct", function () {
    pm.response.to.have.body("response_body_string");
});

Check for a JSON value （检查JSON值）

pm.test("Your test name", function () {
    var jsonData = pm.response.json();
    pm.expect(jsonData.value).to.eql(100);
});

Content-Type is present （内容类型存在）

pm.test("Content-Type is present", function () {
    pm.response.to.have.header("Content-Type");
});

Response time is less than 200ms （响应时间小于200ms）

pm.test("Response time is less than 200ms", function () {
    pm.expect(pm.response.responseTime).to.be.below(200);
});

Status code is 200 （状态码是200）

pm.test("Status code is 200", function () {
    pm.response.to.have.status(200);
});

Code name contains a string （代码名称包含一个字符串）

pm.test("Status code name has string", function () {
    pm.response.to.have.status("Created");
});

Successful POST request status code （成功的POST请求状态码）

pm.test("Successful POST request", function () {
    pm.expect(pm.response.code).to.be.oneOf([201,202]);
});

Use TinyValidator for JSON data （对于JSON数据使用TinyValidator）

var schema = {
 "items": {
 "type": "boolean"
 }
};
var data1 = [true, false];
var data2 = [true, 123];

pm.test('Schema is valid', function() {
  pm.expect(tv4.validate(data1, schema)).to.be.true;
  pm.expect(tv4.validate(data2, schema)).to.be.true;
});

Decode base64 encoded data （解码base64编码的数据）

var intermediate,
  base64Content, // assume this has a base64 encoded value
  rawContent = base64Content.slice('data:application/octet-stream;base64,'.length);

intermediate = CryptoJS.enc.Base64.parse(base64content); // CryptoJS is an inbuilt object, documented here: https://www.npmjs.com/package/crypto-js
pm.test('Contents are valid', function() {
  pm.expect(CryptoJS.enc.Utf8.stringify(intermediate)).to.be.true; // a check for non-emptiness
});

Send an asynchronous request （发送异步请求）

该功能既可以作为预先请求，也可以作为测试脚本使用。

pm.sendRequest("https://postman-echo.com/get", function (err, response) {
    console.log(response.json());
});

Convert XML body to a JSON object （将XML正文转换为JSON对象）

var jsonObject = xml2Json(responseBody);

学而不思则罔，思而不学则殆