What types of tests do we have in software development?
There are many types of tests in software development, each serving a different purpose. Here are some of the most common types of tests:

1. Unit Tests: These are tests that focus on a small, isolated unit of code, such as a single function or method. They are used to verify that the unit of code behaves correctly in isolation.

2. Integration Tests: These are tests that verify that different units of code work correctly together. They are used to identify issues that may arise when different parts of the system are integrated.

3. System Tests: These are tests that verify that the entire system works correctly, from end to end. They are used to ensure that the software meets all of the requirements and behaves correctly in the context of the overall system.

4. Acceptance Tests: These are tests that verify that the software meets the customer's requirements and expectations. They are often used as a final check before releasing the software to the customer.

5. Regression Tests: These are tests that are run to ensure that changes to the software do not introduce new bugs or issues. They are used to catch regressions that may occur when changes are made to the software.

6. Performance Tests: These are tests that verify that the software performs well under expected load and stress. They are used to identify performance bottlenecks and ensure that the software meets performance requirements.

7. Security Tests: These are tests that verify that the software is secure and does not have vulnerabilities that could be exploited by attackers. They are used to identify and mitigate security risks.

These are just a few examples of the types of tests that are used in software development. The specific tests that are used may vary depending on the project and the development methodology being used.