postman 官方 test 脚本样例

Test examples

样例来源:

https://learning.getpostman.com/docs/postman/scripts/test_examples/

Test scripts are run after a request is sent and a response has been received from the server.

Let’s look at some examples of Postman tests. Most of these are available as snippets inside Postman. You can have as many tests as you want for a request.

Setting an environment variable

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

Setting a nested object as an environment variable

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

pm.environment.get("variable_key");

Getting an environment variable (whose value is a stringified object)

// 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

pm.environment.unset("variable_key");

Set a global variable

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

Get a global variable

pm.globals.get("variable_key");

Clear a global variable

pm.globals.unset("variable_key");

Get a variable

This function searches for the variable across globals and the active environment.

pm.variables.get("variable_key");

Check if response body contains a string

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

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

Check for a JSON value

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

Content-Type is present

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

Response time is less than 200ms

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

Status code is 200

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

Code name contains a string

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

Successful POST request status code

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

Use TinyValidator for JSON data

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

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

This function is available as both a pre-request and test script.

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

Convert XML body to a JSON object

var jsonObject = xml2Json(responseBody);