Extract shared test fixtures into non-published module

[Copilot]

• Create a new module dynamic-datasource-test-common for shared test code
• Configure the new module in settings.gradle to include it in the project
• Configure the new module's build.gradle to NOT publish to Maven (disable all publishing tasks)
• Move common test code (models, services, SQL scripts) to the new module
• Refactor test classes in each starter to use the shared test code
• Ensure all tests still pass across all three starter modules
• Verify the new module is excluded from publishing

Summary

This PR addresses the issue of duplicate test code across the starter modules by creating a shared dynamic-datasource-test-common module.

Key Changes

1. New module created: dynamic-datasource-test-common

   • Contains 15 shared Java classes (models and services)
   • Contains 3 SQL scripts for test database setup
   • Configured to NOT be published (all publishing and signing tasks disabled)

2. Shared code includes:

   • Model classes: User, Student, Teacher, Account, Order, Product, PlaceOrderRequest, OrderStatus
   • Service classes: UserService, StudentService, TeacherService, SchoolService, OrderService, AccountService, ProductService
   • SQL scripts: add-remove-datasource.sql, ds-with-transactional.sql, spring-expression-language.sql

3. Starter modules updated:

   • All three starter modules now depend on testImplementation(project(":dynamic-datasource-test-common"))
   • Each starter keeps only its test classes and platform-specific UserController
   • UserController must remain separate due to javax.servlet (Boot 2.x) vs jakarta.servlet (Boot 3.x/4.x) API differences

4. Package structure:

   • Shared code: com.baomidou.dynamic.datasource.common.service.*
   • Test classes: com.baomidou.dynamic.datasource.common.v1/v3/v4

Benefits

• Single source of truth for test code
• Easier maintenance - changes only need to be made in one place
• The module won't be published to Maven (as requested)
• All existing tests continue to pass

Original prompt

我在各个starter中有很多重复的测试代码，能否只保留一份。各个环境复用。 可以新建一个模块，但是此模块不会发版的时候不会参与发布。

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[huayanYu]

@copilot 包名再重构下，比如dynamic-datasource-test-common。 不需要fixture相关描述和字段出现

[Copilot]

@copilot 包名再重构下，比如dynamic-datasource-test-common。 不需要fixture相关描述和字段出现

Done in commit ab07a25. Renamed module to dynamic-datasource-test-common and changed package from com.baomidou.dynamic.datasource.fixture to com.baomidou.dynamic.datasource.common. All "fixture" references have been removed.

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[Copilot]

Pull request overview

This PR successfully consolidates duplicate test code across three Spring Boot starter modules (Boot 2.x, 3.x, and 4.x) into a shared dynamic-datasource-test-common module that is excluded from Maven publication.

Key Changes

• Created a non-published test-common module containing 15 shared Java classes and 3 SQL scripts
• Updated all three starter modules to depend on the shared test code via testImplementation
• Refactored test packages from version-specific (fixture.v1/v3/v4) to a common structure (common.v1/v3/v4)

Reviewed changes

Copilot reviewed 76 out of 79 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
settings.gradle	Added the new test-common module to the project
dynamic-datasource-test-common/build.gradle	Configured module to exclude all publishing and signing tasks
dynamic-datasource-test-common/src/main/resources/db/*.sql	Moved 3 SQL scripts from individual starters to shared location
dynamic-datasource-test-common/src/main/java/.../common/service/*	Moved 15 shared model and service classes to common package
dynamic-datasource-spring-boot*-starter/build.gradle	Added testImplementation dependency on test-common module
dynamic-datasource-spring-boot*-starter/src/test/java/.../common/v*/*.java	Refactored test classes to use shared code with updated imports and scan packages
dynamic-datasource-spring-boot*-starter/src/test/java/.../common/controller/UserController.java	Updated UserController with new package and imports (kept separate per version for servlet API compatibility)
dynamic-datasource-spring-boot*-starter/src/test/resources/db/*.sql	Removed duplicate SQL files
dynamic-datasource-spring-boot*-starter/src/test/resources/META-INF/native-image/*.json	Removed obsolete native-image resource configuration files

Comments suppressed due to low confidence (4)

dynamic-datasource-spring-boot4-starter/src/test/java/com/baomidou/dynamic/datasource/common/controller/UserController.java:33

• The change from constructor injection to field injection with @Autowired is inconsistent with best practices. Constructor injection is preferred as it:

1. Makes dependencies explicit and required
2. Enables immutability by allowing fields to be final
3. Makes testing easier without reflection
4. Makes the code more robust by preventing null pointer exceptions

Consider reverting to the original constructor injection pattern that was used before this change.
dynamic-datasource-spring-boot3-starter/src/test/java/com/baomidou/dynamic/datasource/common/controller/UserController.java:33

• The change from constructor injection to field injection with @Autowired is inconsistent with best practices. Constructor injection is preferred as it:

1. Makes dependencies explicit and required
2. Enables immutability by allowing fields to be final
3. Makes testing easier without reflection
4. Makes the code more robust by preventing null pointer exceptions

Consider reverting to the original constructor injection pattern that was used before this change.
dynamic-datasource-spring-boot4-starter/src/test/java/com/baomidou/dynamic/datasource/common/controller/UserController.java:26

• The import order is inconsistent with standard Java conventions. Jakarta/javax imports should come after other imports, not in the middle. The standard convention is:

1. Java standard library imports
2. Third-party library imports (Spring, etc.)
3. Application/project imports
4. Static imports (if any)

Consider reorganizing the imports to maintain consistency with standard conventions.
dynamic-datasource-spring-boot3-starter/src/test/java/com/baomidou/dynamic/datasource/common/controller/UserController.java:26

• The import order is inconsistent with standard Java conventions. Jakarta/javax imports should come after other imports, not in the middle. The standard convention is:

1. Java standard library imports
2. Third-party library imports (Spring, etc.)
3. Application/project imports
4. Static imports (if any)

Consider reorganizing the imports to maintain consistency with standard conventions.