Unit testing services
Accuracy in code, confidence in every release.
Trust DeviQA’s unit testing to catch critical bugs early and guarantee your code works flawlessly from the ground up.
Trusted by
Our solutions for your
unit testing challenges
Unit testing comes with common challenges – we solve them with smart, scalable
solutions that keep your code reliable and your team focused.
The scope of our unit
testing services
No matter your codebase or tech stack, we make sure every unit runs flawlessly. Our
expertise covers:
Functional unit testing
We test individual functions and methods to ensure they return the right output for every input – no surprises, no regressions.
Edge case & error path testing
We validate how your components behave under unusual or extreme conditions, catching hidden bugs before they hit production.
Mocking & dependency isolation
We isolate units by mocking external services, databases, and APIs – so tests are fast, reliable, and focused on core logic.
Test-driven development (TDD)
We support teams using TDD by writing precise, reusable tests that guide clean, maintainable code from the start.
Legacy code unit testing
Even if you’re working with legacy code, we help introduce unit tests safely – without breaking what's already working.
Global healthcare giant
90%
Test coverage
1.6k+
Test cases created
X18
Faster regression testing run
Solution for managing payments
12
Years of cooperation
100%
Covered performance
2x
Faster regression testing time
Experience the DeviQA difference
From initial consultation to full-scale QA implementation, we deliver results.
DeviQA’s AI advantage
At DeviQA, we use AI to make testing smarter and simpler. Our ecosystem is built to deliver faster, smarter, and more cost-efficient results — so your team can do more in less time.
DeviQA AI ecosystem
AI-powered IDE assistant
Reduces test script writing time
QA companion
Provides suggestions for test optimization and addresses gaps
Automated code review
Flags unused variables, improper loops, and other common errors
AI for API testing in Postman
Streamlines API test case creation and response validation
Features
Test case creation
Code review
Exploratory planning
Log analysis
without AI
6 hrs
3 hrs
2 hrs
2 hrs
with DeviQA AI
4 hrs (33% saved)
2 hrs (33% saved)
45 min (60% saved)
1 hr (50% saved)
Collaboration on your terms
Backed by 16 years of expertise, DeviQA offers three flexible models for unit testing services to fit your project’s needs, timeline, and budget.
Staff augmentation
Expand your team with skilled unit testing engineers – fast.
Advantages:
Flexible scaling up or down
No recruitment delays or overhead
Seamless collaboration with your developers
Best for:
Teams needing extra hands without long-term commitment.
Dedicated QA team
A full-time team focused solely on your product and goals.
Advantages:
Deep integration with your in-house team
Long-term engagement and knowledge retention
Full control over priorities and direction
Best for:
Companies scaling fast and needing a stable, expert QA team.
Project-based outsourcing
Hand off unit testing for a specific scope – we’ll own it end-to-end.
Advantages:
Clear deliverables and timelines
Zero management overhead
Ideal for one-off or fixed-scope projects
Best for:
Busy teams that want results without managing the process.
Why choose us for unit testing?
Over 500,000 project man-days successfully delivered.
We take full accountability for our work.
A range of value-added services at no extra cost.
Free test trial. Try us before making any payment.
Our engineers are senior testers with strong autonomy and self-starting ability.
With a 96% retention rate, we offer stable teams, compared to the industry average of 80%.
Extensive testing lab with a wide range of environments, platforms, and devices.
Access to a technology community of over 1000 QA engineers and experts.
Stable code needs stable tests – we write ones that survive refactors
Our approach to unit testing
A structured, proven process that ensures test reliability, code quality, and faster releases – from day one.
Codebase analysis
We begin with a deep dive into your architecture, identifying critical paths, dependencies, and risk areas.
Test strategy design
We define the scope, coverage goals, and tools – aligning with your tech stack, timeline, and CI/CD setup.
Environment setup
We configure frameworks, mocks, and test runners to ensure fast, isolated execution of unit tests.
Test development
Our engineers write clean, maintainable unit tests targeting business logic, edge cases, and failure scenarios.
Integration with CI/CD
We plug tests into your pipeline, enabling automatic validation with every commit and pull request.
Ongoing optimization
We continuously monitor test effectiveness, reduce flakiness, and adapt coverage as your code evolves.
Here’s what people are saying
about DeviQA
26 reviews
32 reviews
9 reviews
“It was so easy to integrate your people with us and we didn't have any problems.”
Janosch Greber
VP of engineering at RealTyme
“DeviQA has always brought us really high quality candidates for us to be able to seamlessly mesh into our team.”
Danny He
CEO and founder at Soapbox
“You guys have always been genuine, flexible and personable.”
Ryan Austin
CEO and founder at Cognota
“In fact, they have been a part of our success story, helping us grow from six workers 11 years ago to about 1200 workers now.”
Raanan Tauber
QA manager at Tipalti
“They can take my lack of knowledge and I can trust that they will be able to produce something of value.”
Ray Alde
Co-founder & cto at Arklign
“To me, that's above and beyond, I did not expect that to be so smooth and so easy.”
Mark Levine
Chief product officer at CYDEF
“They know what they're doing because the people that they send to us are quality people.”
Charles Chase
Chief technology officer at Returnmates
“There is also very good follow up on the engineers and the job they're doing.”
Olivier Mayot
Chief technology officer at SimpliField
Collaboration process overview
- 01
Initial contact. We start by understanding your testing needs and aligning them with your goals.
- 02
Assessment. Our experts analyze your current process and propose a tailored improvement plan.
- 03
PoC. Try a free proof of concept to see our capabilities in action.
- 04
Trial & evaluation. We conduct a trial phase and review the results together.
- 05
Contract & QA implementation. Once satisfied, we sign the contract and begin full-scale QA.
- 06
Flexible partnership. DeviQA offers scalable solutions to adapt to your business needs.
