Testing individual pieces of code, such as functions or classes, in isolation to confirm they behave as expected.
A unit test checks one small unit of code with specific inputs and verifies the output. For example, a function that calculates reading time for a blog post might be tested to confirm that a 1,000-word article returns about five minutes at a set reading speed, and that an empty article returns zero.
Unit tests are fast and run automatically, often on every code change in a CI/CD pipeline. They catch regressions early and make refactoring safer. Popular frameworks include pytest for Python, JUnit for Java, and Jest or Vitest for JavaScript and TypeScript. Test-driven development is a practice where developers write the test before the code. Unit tests complement, but do not replace, integration and end-to-end tests.
Continuous Integration and Continuous Delivery or Deployment: practices that automatically build, test, and release code changes.
DebuggingThe process of finding, understanding, and fixing errors, or bugs, in software code.
Integration TestingTesting that checks whether different parts of a software system, such as services, databases, and APIs, work correctly together.
Quality AssuranceThe process of ensuring software meets requirements and quality standards through planning, testing, and continuous improvement.
RefactoringRestructuring existing code to make it cleaner, simpler, or easier to maintain without changing what the software does.
Technical DebtThe future cost of rework caused by choosing a quick or easy software solution now instead of a better long-term approach.
What happens in a smart contract audit, the scope factors that drive the price, how fixed quotes, competitive audits and bug bounties compare, and how to prepare so you pay for findings, not cleanup.