Maintenance: Test infrastructure - Refactor configureByJavaText helper

[claude]

Summary

• Moved configureByJavaText helper method to VimTestCase base class
• Removed duplicate implementations from VimJavaTestCase and VimPropertyTestBase
• Added comprehensive KDoc documentation to VimJavaTestCase

Area Inspected

During routine codebase maintenance, I inspected:

• tests/java-tests/src/test/kotlin/org/jetbrains/plugins/ideavim/VimJavaTestCase.kt
• Related test infrastructure files

Issues Found

1. Code Duplication: The configureByJavaText method was duplicated in both VimJavaTestCase and VimPropertyTestBase, violating the DRY principle
2. Inconsistent Pattern: VimTestCase already provides configureByXmlText directly in the base class, but Java support required subclasses to define their own helper
3. Missing Documentation: VimJavaTestCase lacked KDoc explaining its purpose

Changes Made

1. Consolidated Helper Method: Added configureByJavaText to VimTestCase.kt (line 305) alongside the existing configureByXmlText, maintaining consistency with the established pattern
2. Removed Duplication:
   • Removed duplicate from VimJavaTestCase (now inherits from parent)
   • Removed duplicate from VimPropertyTestBase (now inherits from parent)
   • Removed now-unused JavaFileType import from VimPropertyTestBase
3. Added Documentation: Added comprehensive KDoc to VimJavaTestCase explaining:
   • Its purpose as a base class for Java-specific tests
   • When to use it vs. using VimTestCase directly
   • That it now serves as a semantic marker with potential for future Java-specific setup

Why These Changes Improve the Code

• Eliminates Duplication: Single source of truth for the configureByJavaText helper
• Consistency: Aligns with existing pattern (configureByXmlText is in the base class)
• Maintainability: Future changes to the helper only need to be made in one place
• Documentation: Clear explanation helps future contributors understand the test infrastructure
• Clean Dependencies: Removed unnecessary imports

Test Plan

• The changes are refactoring only - no functional changes to test behavior
• All existing tests using configureByJavaText continue to work via inheritance
• 20 test files that extend VimJavaTestCase are unaffected
• Property tests that use the method inherit it from the common parent

🤖 Generated with Claude Code

[claude]

✅ Good placement and consistency: This helper method is now properly aligned with the existing configureByXmlText method, following the established pattern in the codebase. The refactoring successfully eliminates duplication.

Minor note: The method returns Editor (inherited from the base configureByText method), which is consistent with the original implementations and maintains backward compatibility.

[claude]

✅ Excellent documentation: The KDoc is comprehensive and clearly explains:

• The purpose of the class
• When to use it vs. using VimTestCase directly
• That it now inherits configureByJavaText from the parent

Suggestion: Consider adding a @since tag if the project follows that convention for documentation, though I don't see this pattern used elsewhere in the codebase, so it's likely not necessary.

[claude]

✅ Clean refactoring: The removal of the duplicate configureByJavaText method and its import is correct. The method is now inherited from VimTestCase, maintaining full backward compatibility.

All 4 subclasses of VimPropertyTestBase will continue to work without modification:

• RandomActionsPropertyTest.kt (which uses configureByJavaText)
• YankDeletePropertyTest.kt
• IncrementDecrementCheck.kt
• MapPropertyTest.kt

[claude]

PR Review: Test Infrastructure Refactoring

Overall Assessment: ✅ APPROVED

This is an excellent refactoring that improves code quality and maintainability without changing any functional behavior.

Strengths

1. Eliminates Code Duplication ✅

• Removes duplicate implementations of configureByJavaText from VimJavaTestCase and VimPropertyTestBase
• Consolidates the method in VimTestCase base class, following the DRY principle
• Single source of truth for this helper method

2. Consistency with Existing Patterns ✅

• Perfectly aligns with the existing configureByXmlText pattern already present in VimTestCase
• Both helper methods now sit side-by-side in the base class (lines 304-305)
• Maintains consistent method signature and return type (Editor)

3. Excellent Documentation ✅

• Added comprehensive KDoc to VimJavaTestCase explaining its purpose
• Clear guidance on when to use it vs. using VimTestCase directly
• Documents that the class now serves as a semantic marker with potential for future Java-specific setup

4. Clean Dependency Management ✅

• Removed unnecessary JavaFileType import from VimPropertyTestBase
• Added necessary import to VimTestCase base class

5. Zero Breaking Changes ✅

• All 20+ test files extending VimJavaTestCase continue to work via inheritance
• All property test files (RandomActionsPropertyTest, etc.) inherit the method from the common parent
• Fully backward compatible

Code Quality

• Architecture: Follows proper inheritance hierarchy
• Naming: Consistent with existing conventions
• Visibility: Correctly uses protected modifier
• Style: Adheres to Kotlin coding standards

Test Coverage

• No new tests needed - this is a pure refactoring with no behavioral changes
• All existing tests that use configureByJavaText will continue to work identically
• Property tests may be flaky by nature (per CLAUDE.md guidance), but not related to this change

Security & Performance

• No security concerns
• No performance impact - method simply delegates to existing implementation

Recommendations

This PR is ready to merge as-is. No changes required.

Suggestion for future work (not blocking): Consider similar refactoring opportunities for other file type helpers if they exist elsewhere in the test infrastructure.

---

Great work on identifying and fixing this duplication! This type of maintenance improves long-term codebase health.