Asserting response bodies in Cypress - Test Execution Trace

Test Overview

This test sends a GET request to a sample API endpoint and verifies that the response body contains the expected data.

Test Code - Cypress

Cypress

describe('API Response Body Assertion', () => {
  it('should verify the response body contains expected user data', () => {
    cy.request('https://jsonplaceholder.typicode.com/users/1')
      .then((response) => {
        expect(response.status).to.equal(200);
        expect(response.body).to.have.property('id', 1);
        expect(response.body).to.have.property('username', 'Bret');
      });
  });
});

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Cypress test runner initialized	-	PASS
2	Sends GET request to https://jsonplaceholder.typicode.com/users/1	Request sent, waiting for response	-	PASS
3	Receives response with status 200 and JSON body	Response received with user data	Check response.status equals 200	PASS
4	Asserts response body has property 'id' with value 1	Response body contains user object	response.body.id === 1	PASS
5	Asserts response body has property 'username' with value 'Bret'	Response body contains user object	response.body.username === 'Bret'	PASS
6	Test ends successfully	All assertions passed	-	PASS

Failure Scenario

Failing Condition: Response body does not contain the expected 'username' property with value 'Bret'

Execution Trace Quiz - 3 Questions

What does the test verify about the response status?

A It checks that the status code is 500

B It checks that the status code is 404

C It checks that the status code is 200

D It does not check the status code

Key Result

Always assert both the HTTP status code and key properties in the response body to ensure the API returns the expected data.