Regression Testing

Shift-Left Testing

Shift-left testing is the practice of moving software testing activities earlier in the development lifecycle — closer to when code is written — rather than de…

Contract Testing

Contract testing verifies that two independently deployed services — typically a consumer and a provider in a microservices architecture — agree on the structu…

Mutation Testing

Mutation testing is a technique for evaluating the effectiveness of a test suite by automatically introducing small, deliberate faults ('mutants') into the sou…

Snapshot Testing

Snapshot testing is an automated testing technique that captures the output of a piece of code — such as a rendered UI component or a data structure — and comp…

Load Testing

Load testing is a type of performance testing that measures how a system behaves under an expected or peak level of concurrent user traffic or transaction volu…

Smoke Testing

Smoke testing is a quick, shallow set of tests run after a build or deployment to verify that the most critical functionality works and the system is stable en…

Regression Testing

Regression testing is the practice of re-running existing tests after a code change to confirm that previously working functionality has not been broken by the…

Test Pyramid

The test pyramid is a model for structuring an automated test suite that recommends having many fast, cheap unit tests at the base, fewer integration tests in…

Test Coverage

Test coverage is a metric that measures the proportion of a codebase — expressed as lines, branches, functions, or statements — that is executed by an automate…

Mocking Framework

A mocking framework is a testing library that creates fake, controllable substitutes for real dependencies — such as databases, network calls, or other service…