What Is Regression Testing?
Regression testing re-checks existing features after code changes, to confirm nothing that used to work has broken. It combines an automated suite that runs on every change with targeted manual checks before larger releases.
This Is For You If...
Bugs you already fixed keep coming back
Small changes break unrelated features
Releases need a long manual checklist
You ship to clients or institutions who expect stable releases
You're about to refactor or upgrade a framework
What We Build
Regression Suite
Automated tests for features that must never break. See End-to-End Testing and API Testing.
Bug-Driven Tests
A test for every fixed bug, so it can't quietly return.
Risk-Based Manual Checks
Short manual checklists for areas automation can't easily cover.
Release Sign-Off
A pre-release run with a clear pass or fail report.
Upgrade Safety Nets
Extra coverage before framework upgrades and refactors.
Common Mistakes to Avoid
Instinct | Why It Doesn't Help | Do This Instead |
Re-testing everything manually each release | Slow and inconsistent | Automate the stable core and test changes manually |
Fixing bugs without adding tests | The same bug returns | Add a test for each fix |
Running regression only before big releases | Breakage builds up between releases | Run the automated suite on every change |
How It Works
1. Map
List critical features and past bugs
2. Automate
Build the regression suite
3. Checklist
Write manual checks for what remains
4. Run
Test before each release
5. Report
Sign-off report with results and known issues
Why Codersarts
We combine automated tests with focused manual checks, so you get coverage without slowing releases.
Turnaround Time
Setting up a regression suite for a typical app takes 1 to 2 weeks. Pre-release regression runs usually take a day.
FAQ
What is the difference between regression and functional testing?
Functional testing checks that new features work. Regression testing checks that existing features still work after changes.
Should regression tests be automated?
Mostly. Automate stable, high-value checks, and keep manual checks for new or hard-to-automate areas.
How often should we run regression tests?
Automated regression on every change, and a fuller run before each release.
Is our project kept confidential?
Yes. Your code, data, and test results stay confidential, and an NDA is available on request.
Fixed-Price Tasks to Start With
Regression Test Before Release: a full run before your next release
Playwright E2E Test Setup: automate your critical flows
Related Services
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