Test automation project for service JSON Placeholder

About

This is a set of simple tests running against json placeholder api service and validating responses and resulting data.

Installation

1. clone repo
2. install dependencies with npm install
3. run npm test

Usage

There is two test suits included, one for testing the endpoints to follow the common rest api patterns

npm test

and another one for testing data (see below)

npm run test-data

Task description

The following requirements were supplied by the client and were implemented:

• REST API
  • returns 200 on valid entry request
  • returns 404 on invalid entry request
  • response body conforms to the spec
  • snapshot tests with property matchers
  • change data to specific format
  • limit response size to 120 elements
  • github actions config for automated tests
• DATA
  • simple brute force solution
  • optimized solution with minimum array pass trough
  • optimized solution with concurrent requests to api
  • separate tests for each todo entity using test.each
  • separate github actions workflow
• k6 script

Notes

Inside k6 folder there is a script that can be used with k6 load testing tool

k6 run --iterations 210 k6/script.js

or inside docker container

docker run --rm -v d:/k6:/src -i grafana/k6 run --iterations 210 /src/script.js

which will lead to similar result

█ Basic API test

  ✗ expected API status code to equal 200
  ↳  95% — ✓ 200 / ✗ 10
  ✓ has valid json body
  ✗ expected title length to be above 20
  ↳  88% — ✓ 177 / ✗ 23

checks.........................: 94.59% ✓ 577       ✗ 33
data_received..................: 120 kB 6.4 kB/s
data_sent......................: 9.9 kB 531 B/s
group_duration.................: avg=88.87ms  min=49.47ms med=63.51ms max=813.98ms p(90)=181.93ms p(95)=246.56ms
http_req_blocked...............: avg=493.72µs min=300ns   med=400ns   max=103.59ms p(90)=600ns    p(95)=600ns
http_req_connecting............: avg=233.25µs min=0s      med=0s      max=48.98ms  p(90)=0s       p(95)=0s
http_req_duration..............: avg=85.51ms  min=46.63ms med=60.68ms max=811.13ms p(90)=179.44ms p(95)=243.65ms
  { expected_response:true }...: avg=84.21ms  min=46.63ms med=60.65ms max=811.13ms p(90)=131ms    p(95)=244.72ms
http_req_failed................: 4.76%  ✓ 10        ✗ 200
http_req_receiving.............: avg=208.05µs min=49.9µs  med=91µs    max=8.34ms   p(90)=129.09µs p(95)=634.82µs
http_req_sending...............: avg=106.71µs min=61.7µs  med=102.5µs max=327.7µs  p(90)=134.26µs p(95)=152.23µs
http_req_tls_handshaking.......: avg=244.81µs min=0s      med=0s      max=51.41ms  p(90)=0s       p(95)=0s
http_req_waiting...............: avg=85.19ms  min=46.47ms med=60.5ms  max=810.93ms p(90)=179.26ms p(95)=243.44ms
http_reqs......................: 210    11.244851/s
iteration_duration.............: avg=88.9ms   min=49.48ms med=63.53ms max=814ms    p(90)=181.95ms p(95)=246.6ms
iterations.....................: 210    11.244851/s
vus............................: 1      min=1       max=1
vus_max........................: 1      min=1       max=1