freeCodeCamp/guide/english/certifications/information-security-and-quality-assurance/quality-assurance-and-testing-with-chai/run-functional-tests-on-an-api-response-using-chai-http-iv---put-method/index.md

---
title: Run Functional Tests on an API Response using Chai-HTTP IV - PUT method
---
## Run Functional Tests on an API Response using Chai-HTTP IV - PUT method

To begin, open the file "tests/2_functional_tests.js" and locate the test 'send {surname: "da Verrazzano"}'.

## Hint 1

Using the example above, look how the request is being sent, and how the assertions are making comparisons between the expected and actual values of the response.

## Hint 2

Make sure you are placing a request through `chai.request(server)`.

## Hint 3

You need to use make a .put() request to `/travellers` and use .send() to attach the payload `{surname: 'da Verrazzano'}` to the request.

## Hint 4

Replace the assert.fail() statement with your own tests checking for status, type, body.name, and body.surname in that order. Remember, all of these values are contained in the response `(res`), and you should expect the response to be of type `'application/json'`.

## Hint 5

Check the tests on the challenge page to determine the expected values for `body.name` and `body.surname`.

## Hint 6

Ensure your call to `done()` is inside your callback function for the tests.

## Solution

```js
test('send {surname: "da Verrazzano"}', function(done) {
  /** place the chai-http request code here... **/
  chai.request(server)
  .put('/travellers')
  .send({surname: 'da Verrazzano'})
  /** place your tests inside the callback **/
  .end(function(err, res){
        
    assert.equal(res.status, 200, 'response status should be 200');
    assert.equal(res.type, 'application/json', "Response should be json");
    assert.equal(res.body.name, 'Giovanni');
    assert.equal(res.body.surname, 'da Verrazzano');
        
    done();
  });
});
```