🧪 DEVOPS STEP 4: TEST – Catch Bugs Early, Deliver with Confidence ✅

In DevOps, testing is not a phase — it’s a continuous process that runs alongside development and integration.

The Test stage ensures that every build works as expected and that quality is built into the pipeline, not added at the end.

🎯 Goals of the Test Phase:

✅ Detect bugs and regressions early

✅ Validate business logic and API behavior

✅ Automate repetitive and time-consuming tests

✅ Increase confidence in every release

🔧 Popular Testing Tools:

JUnit / TestNG – Unit testing in Java

Postman / REST Assured – API testing

Selenium / Cypress / Playwright – UI and end-to-end testing

Mockito / Jest – Mocking frameworks for isolation

SonarQube – Code quality and security scanning

JUnit reports + Allure – For visualizing test results

💡 Best Practices:

Shift testing left — write and run tests during development

Automate unit, integration, and regression tests

Include tests in your CI pipeline

Use code coverage wisely, but don’t chase 100%

Keep tests fast and focused to speed up feedback loops

🔁 DevOps = Quality at Every Step

Testing isn’t just QA’s job anymore — developers, testers, and DevOps engineers all share the responsibility for reliable, bug-free releases.

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