Software test sequence

The sequence of software testing is as follows:

The sequence of software testing usually follows the following steps:

Unit test: Unit test is the smallest testable unit in checking and verifying software. For object-oriented programming, the smallest unit is a method, that is, a single method in a class. Unit tests are usually performed by developers.

Integration test: On the basis of unit test, all modules are grouped and the combined modules are tested. This kind of test can find errors between module interfaces and other types of errors that cannot be found in unit tests.

System test: This is a black-box test based on the software requirement specification, to check whether the whole system meets the requirements. System testing is usually performed by the test team.

Regression testing: When the errors in the software are changed or fixed, the software should be re-tested to ensure that the modification will not introduce new errors.

Acceptance test: also known as user acceptance test, it is mainly a test conducted by users to determine whether the system is ready to be accepted and put into use.

These steps can be repeated as needed. For example, after fixing the errors, unit tests, integration tests and system tests may need to be repeated.

In addition, according to the actual situation of software development, other types of tests may be conducted, such as:

Smoke testing: This is an API test, the main purpose of which is to check whether the system can run normally. Smoke testing is usually done after developing or modifying the code.

Exploratory testing: This is an unplanned and free testing method that allows testers to explore the system to find new potential problems.

Load/performance test: This kind of test mainly focuses on the performance and responsiveness of the system, such as the performance under high load or large data volume.

Compatibility test: This test mainly checks the compatibility of the system on different platforms, browsers or operating systems.

Security/Vulnerability Scan Test: This test aims to find and fix possible security vulnerabilities.

Generally speaking, the order and type of software testing depends on the specific needs and objectives of the project.