Exploring Automated Regression Testing

Olivia Rhye
11 Jan 2022
5 min read

Exploring Automated Regression Testing

Regression testing ensures that new changes don’t break existing functionality. As a product grows, manual regression becomes a bottleneck — it’s slow, costly, and hard to scale. Automated regression testing solves this problem by increasing coverage, speeding up feedback loops, and reducing release risks.

‍Automated regression testing is a crucial component in modern software development, particularly as applications become more complex and user expectations rise. By automating repetitive and time-consuming tests, teams can focus on more strategic tasks, such as improving user experience and addressing critical bugs. This approach not only enhances efficiency but also ensures that software updates are delivered with confidence, minimizing the risk of introducing new issues.

Comparison: Manual vs Automated

Criteria: Manual vs Automated. Feedback speed: Hours to Days vs Minutes (CI/CD). Repeatability: Human-dependent vs Deterministic. Scalability: Costly vs Highly scalable.

// Simple automated test example
function add(a, b) {
  return a + b;
}

console.log(add(2, 3)); // Output: 5

Table Preview

Test Type Purpose Tools / Examples Frequency
Unit Testing Test individual functions or modules JUnit, NUnit, pytest After every code change
Integration Testing Test interactions between modules Selenium, TestNG After each build
Smoke Testing Quick check of critical functionality Cypress, Postman With every release
Regression Testing Ensure new changes do not break existing functionality Selenium, QTP, Robot Framework After changes are made
Performance Testing Check system performance and responsiveness JMeter, LoadRunner Periodically
Automated UI Testing Verify the user interface Cypress, Selenium After UI changes

Best Practices

  • Prioritize critical flows (checkout, login, payments).
  • Integrate with CI/CD to trigger regression runs automatically.
  • Maintain your test suite — review and remove outdated tests regularly.
  • Combine manual + automation: keep manual exploratory testing for edge cases.
“Automation doesn’t replace testers — it empowers them to focus on what really matters: discovering new risks and ensuring user experience.”

Get Started

Ready to explore automated regression testing? Click below:

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Olivia Rhye
11 Jan 2022
5 min read

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