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[PR #28568] test: add comprehensive unit tests for SegmentService - Fix: #28656 #32090

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opened 2026-02-21 20:50:44 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:50:44 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/28568

State: closed
Merged: Yes

Summary

Adds comprehensive unit test coverage for all SegmentService methods to ensure reliability and maintainability of segment and child chunk operations.

Fix: #28656

Test Coverage

Segment Operations

  • ✅ create_segment - Tests segment creation with different indexing techniques (economy/high_quality) and document forms (text_model/qa_model), including vector indexing success and failure scenarios
  • ✅ update_segment - Tests content updates, enable/disable operations, error handling for indexing conflicts and disabled segments
  • ✅ delete_segment - Tests single segment deletion with and without index cleanup, error handling for concurrent deletions
  • ✅ delete_segments - Tests bulk segment deletion, empty list handling
  • ✅ update_segments_status - Tests bulk enable/disable operations with proper task scheduling
  • ✅ get_segments - Tests segment retrieval with pagination, status filtering, and keyword search
  • ✅ get_segment_by_id - Tests single segment retrieval by ID

Child Chunk Operations

  • ✅ get_child_chunks - Tests child chunk retrieval with pagination and keyword search
  • ✅ get_child_chunk_by_id - Tests single child chunk retrieval by ID
  • ✅ create_child_chunk - Tests child chunk creation with vector indexing success and failure scenarios
  • ✅ update_child_chunk - Tests child chunk content updates with vector indexing
  • ✅ delete_child_chunk - Tests child chunk deletion with vector cleanup

Test Structure

  • Test Data Factory: SegmentTestDataFactory provides reusable mock objects for segments, child chunks, documents, datasets, and users
  • Comprehensive Coverage: Each method tested with success scenarios, error conditions, and edge cases
  • Proper Mocking: All dependencies properly mocked (Redis, VectorService, ModelManager, db.session, etc.)
  • Follows Patterns: Test structure follows existing patterns from other service test files

Files Changed

  • api/tests/unit_tests/services/segment_service.py - New test file (1067 lines)

Testing

  • All tests follow Arrange-Act-Assert pattern
  • Proper use of pytest fixtures for test setup
  • Mock objects properly configured to simulate real behavior
  • Error conditions and edge cases thoroughly tested

Related

Part of ongoing effort to improve test coverage for dataset service methods.

Contribution by Gittensor, learn more at https://gittensor.io/

**Original Pull Request:** https://github.com/langgenius/dify/pull/28568 **State:** closed **Merged:** Yes --- ## Summary Adds comprehensive unit test coverage for all `SegmentService` methods to ensure reliability and maintainability of segment and child chunk operations. Fix: #28656 ## Test Coverage ### Segment Operations - ✅ **create_segment** - Tests segment creation with different indexing techniques (economy/high_quality) and document forms (text_model/qa_model), including vector indexing success and failure scenarios - ✅ **update_segment** - Tests content updates, enable/disable operations, error handling for indexing conflicts and disabled segments - ✅ **delete_segment** - Tests single segment deletion with and without index cleanup, error handling for concurrent deletions - ✅ **delete_segments** - Tests bulk segment deletion, empty list handling - ✅ **update_segments_status** - Tests bulk enable/disable operations with proper task scheduling - ✅ **get_segments** - Tests segment retrieval with pagination, status filtering, and keyword search - ✅ **get_segment_by_id** - Tests single segment retrieval by ID ### Child Chunk Operations - ✅ **get_child_chunks** - Tests child chunk retrieval with pagination and keyword search - ✅ **get_child_chunk_by_id** - Tests single child chunk retrieval by ID - ✅ **create_child_chunk** - Tests child chunk creation with vector indexing success and failure scenarios - ✅ **update_child_chunk** - Tests child chunk content updates with vector indexing - ✅ **delete_child_chunk** - Tests child chunk deletion with vector cleanup ## Test Structure - **Test Data Factory**: `SegmentTestDataFactory` provides reusable mock objects for segments, child chunks, documents, datasets, and users - **Comprehensive Coverage**: Each method tested with success scenarios, error conditions, and edge cases - **Proper Mocking**: All dependencies properly mocked (Redis, VectorService, ModelManager, db.session, etc.) - **Follows Patterns**: Test structure follows existing patterns from other service test files ## Files Changed - `api/tests/unit_tests/services/segment_service.py` - New test file (1067 lines) ## Testing - All tests follow Arrange-Act-Assert pattern - Proper use of pytest fixtures for test setup - Mock objects properly configured to simulate real behavior - Error conditions and edge cases thoroughly tested ## Related Part of ongoing effort to improve test coverage for dataset service methods. Contribution by Gittensor, learn more at https://gittensor.io/
yindo added the pull-request label 2026-02-21 20:50:44 -05:00
yindo closed this issue 2026-02-21 20:50:44 -05:00
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Reference: langgenius/dify#32090
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