What I need
API or process documentation, a test environment, sample data and expected behaviour.
Ivan Matiushkin · Independent contractor · Poland · remote collaboration
Integration and acceptance testing
Check an API or workflow before release: successful cases, failures, expected results and a test report.
A successful HTTP response does not always mean the data is correct. I build contract and process tests that can be repeated after changes.
Tasks you can bring
Releasing a new connection, changing a mapping or checking an integration after an API update? I can prepare repeatable tests for one flow using agreed data. This can also be a bounded acceptance-testing package for an agency or integrator before handing over its implementation.
Describe your taskA test pack for one API or workflow
What you receive
Executable tests, a results report and reproducible steps for each issue found.
How I check the result
Every agreed scenario has an expected outcome, an actual result and a clear PASS or FAIL status.
I agree with you on the test scope before starting. The pack does not replace a security audit, certification or full load testing.
See a sample acceptance report →
A first stage is a way to start, not a limit on the project. Larger applications and ongoing improvements can be agreed in subsequent stages.
Price and timing are agreed after reviewing your materials, before paid work begins. Contracts and payments can be handled through Useme where compatible with the client. Useme is an intermediary, not my company.
From task description to delivery
- Describe the process or current application behaviour. Relevant samples and documentation depend on the task; do not send confidential information.
- I check access and constraints. I agree with you on the scope, price and acceptance tests.
- I implement the stage, show the test results and deliver the code with instructions.
Try an example
The demonstrations below use synthetic data. They are not client deployments.
Try an example →Before you start
Why is an HTTP 200 response not enough to test an integration?
It confirms a successful HTTP response, but does not prove that the right customer, amount or status reached the destination. Acceptance tests compare expected business values with actual target records and check error behaviour.
Which failure scenarios should an API test pack include?
Choose scenarios from the agreed contract: missing fields, invalid values, duplicate requests, timeouts and retry behaviour. Include a valid control case so that a test does not pass merely because everything was rejected.
What makes a test report reproducible?
Record the input or fixture version, configuration, expected result, actual result and instructions to rerun the checks. A PASS applies to that tested scope and version; a change to mapping or rules can require another run.