What is the principle of testing, and what does testing depend on?

The principle of testing is a fundamental rule or approach that helps effectively verify the quality of software. For example, one of the key principles is that testing should be systematic and repeatable.

Testing depends on several factors:

• Software requirements — what exactly needs to be checked.
• Type of testing — functional, load, integration, etc.
• Testing environment — hardware and software environment.
• Risks and priorities — which errors are critical.

For example, if a system processes financial transactions, testing will be more rigorous and comprehensive than for a simple website.

Thus, the principle of testing serves as a guideline for constructing the verification process, and its specific content depends on the context and goals of the project.