10 Mar 2025

This article demonstrates creating mocks and stubs in Go for unit testing. It emphasizes using interfaces, provides examples of mock implementations, and discusses best practices like keeping mocks focused and using assertion libraries. The articl

08 Jul 2025

In Go projects, the method of mock database connection mainly includes using interface abstraction, third-party mock libraries, and in-memory databases or stubbing tools. 1. Use interface to abstract database operations, encapsulate database methods by defining interfaces, making the service structure depend on interfaces rather than specific types, and replace it with mock objects when testing. The advantage is to decouple business logic and database dependencies, and the disadvantage is to manually define the interface; 2. Use third-party mock libraries such as stretchr/testify mock packages to quickly build mock objects and set return values, which is suitable for projects with high test coverage requirements; 3. Use in-memory databases (such as SQLite memory mode) or go-sqlmock and other tools to replace them.

06 Jul 2025

PHPUnit does not support direct mock global functions, but can be implemented through namespace tricks or third-party libraries. 1. Use namespace to redefine the function of the same name in the test file to overwrite the original function; 2. Use tools such as BrainMonkey or FunctionMocker to simplify the mock process; 3. The best practice is to encapsulate global functions into the class and manage through dependency injection to improve code testability and maintainability.

05 Jul 2025

The main ways to mock interfaces in Go projects include: 1. Use interface abstract dependencies; 2. Manually implement mock structures; 3. Use third-party mock libraries such as testify/mock or golang/mock. First, abstract external dependencies into interfaces so that business logic does not depend on specific implementations; then you can manually write a mock structure to return preset values, which is suitable for simple scenarios; for complex projects, a mature mock framework is recommended, which can define the expected behavior and verify the call. Note that the interfaces and methods need to be capitalized in the first letter to ensure export and avoid mock failure. Selecting the appropriate method according to the project size can effectively improve the stability and maintainability of the test.

30 Jun 2025

Mock dependencies are a common requirement in testing. Function behavior can be easily replaced by using the testing framework's own tools such as unittest.mock, Jest or Mockito; for example, in Python, request response can be simulated through Mock objects; the design should be separated from the dependency interface and the dependency injection method should be used to improve flexibility; common practices include passing dependencies as parameters, implementing configuration control, and avoiding global state; Stub is suitable for simple scenarios, such as returning fixed data; but attention should be paid to avoid excessive mocking. It is recommended to give priority to testing pure functions, decoupling business logic and external services, only mock is uncertain or has side effects.

25 Mar 2025

The article discusses the use of mock objects in PHP testing to isolate units, control test data, and enhance reliability. It highlights their advantages in scenarios involving external dependencies, asynchronous code, and legacy systems.