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[PR #28843] feat: complete test script of file upload #32205

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opened 2026-02-21 20:50:57 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 20:50:57 -05:00
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Original Pull Request: https://github.com/langgenius/dify/pull/28843

State: closed
Merged: Yes

Pull Request: Complete Test Script for File Upload

Important

  1. Make sure you have read our contribution guidelines
  2. Ensure there is an associated issue and you have been assigned to it
  3. Use the correct syntax to link this PR: Fixes #<issue number>.

Summary

This PR adds comprehensive unit tests for the file upload functionality in the Dify platform. The test suite provides extensive coverage of file upload validation, security, and handling mechanisms.

Fixes

Closes https://github.com/langgenius/dify/issues/28842

What's Added

New Test File: api/tests/unit_tests/core/datasource/test_file_upload.py

Test Coverage (123 tests across 16 test classes):

  1. File Type Validation - Validates supported extensions for images, videos, audio, and documents with case-insensitive handling
  2. File Size Limiting - Tests size limits for different file categories (image: 10MB, video: 100MB, audio: 50MB, general: 15MB)
  3. Virus Scanning Integration - Placeholder tests for future virus scanning implementation
  4. Storage Path Generation - Tests unique UUID-based path generation with format upload_files/{tenant_id}/{uuid}.{extension}
  5. Duplicate Detection - Validates SHA3-256 hash generation for content-based duplicate detection
  6. Invalid Filename Handling - Blocks dangerous characters (/, , :, *, ?, ", <, >, |) and enforces 200-character limit
  7. Blacklisted Extensions - Tests blocking of dangerous extensions (exe, bat, sh, dll) with case-insensitive checking
  8. User Role Handling - Validates proper role assignment for Account vs EndUser uploads
  9. Source URL Generation - Tests automatic and custom URL generation
  10. File Extension Normalization - Handles various filename formats and edge cases
  11. Filename Validation - Comprehensive validation including unicode support and length constraints
  12. MIME Type Handling - Validates MIME type mappings and fallbacks
  13. Storage Key Generation - Tests format validation and collision resistance
  14. File Hashing Consistency - Validates SHA3-256 deterministic behavior
  15. Configuration Validation - Tests upload size limits and blacklist configurations
  16. File Constants - Validates extension sets and category separation

Security Features Tested

  • ✅ Path traversal prevention (../, ..)
  • ✅ Invalid character blocking
  • ✅ Blacklisted extension blocking
  • ✅ Filename length limits
  • ✅ File size limits per category
  • ✅ Content hashing for integrity

Key Features

  • Comprehensive Documentation: Extensive docstrings and inline comments explaining the purpose and approach of each test
  • AAA Pattern: All tests follow Arrange-Act-Assert pattern for clarity
  • Parametrized Tests: Efficient coverage of multiple scenarios
  • Security-Focused: Critical validation of security-related features
  • Maintainable: Well-structured and easy to understand

Testing Approach

  • Tests focus on logic validation rather than integration due to circular import constraints
  • All tests are isolated and don't depend on external services
  • Comprehensive coverage ensures robust file upload functionality
  • Tests serve as documentation for expected behavior

Screenshots

Not applicable - this PR adds unit tests only (no UI changes).

Test Results

======================================================= 123 passed in 23.78s =======================================================

All tests pass successfully with:

  • ✅ 123/123 tests passing
  • ✅ Ruff linter checks passed
  • ✅ No warnings
  • ✅ Full coverage of file upload functionality

Checklist

  • This change requires a documentation update, included: Dify Document
  • I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
  • I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
  • I've updated the documentation accordingly (comprehensive docstrings and comments in test file).
  • I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

Additional Notes

  • The test file includes a comprehensive module-level docstring with complete test coverage overview
  • All tests include detailed docstrings and inline comments for easy understanding
  • Tests are designed to be maintainable and serve as documentation for the file upload system
  • Future enhancements can include virus scanning integration tests when implemented

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

**Original Pull Request:** https://github.com/langgenius/dify/pull/28843 **State:** closed **Merged:** Yes --- # Pull Request: Complete Test Script for File Upload > [!IMPORTANT] > > 1. Make sure you have read our [contribution guidelines](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) > 1. Ensure there is an associated issue and you have been assigned to it > 1. Use the correct syntax to link this PR: `Fixes #<issue number>`. ## Summary This PR adds comprehensive unit tests for the file upload functionality in the Dify platform. The test suite provides extensive coverage of file upload validation, security, and handling mechanisms. ### Fixes Closes https://github.com/langgenius/dify/issues/28842 ### What's Added **New Test File:** `api/tests/unit_tests/core/datasource/test_file_upload.py` **Test Coverage (123 tests across 16 test classes):** 1. **File Type Validation** - Validates supported extensions for images, videos, audio, and documents with case-insensitive handling 2. **File Size Limiting** - Tests size limits for different file categories (image: 10MB, video: 100MB, audio: 50MB, general: 15MB) 3. **Virus Scanning Integration** - Placeholder tests for future virus scanning implementation 4. **Storage Path Generation** - Tests unique UUID-based path generation with format `upload_files/{tenant_id}/{uuid}.{extension}` 5. **Duplicate Detection** - Validates SHA3-256 hash generation for content-based duplicate detection 6. **Invalid Filename Handling** - Blocks dangerous characters (/, \, :, *, ?, ", <, >, |) and enforces 200-character limit 7. **Blacklisted Extensions** - Tests blocking of dangerous extensions (exe, bat, sh, dll) with case-insensitive checking 8. **User Role Handling** - Validates proper role assignment for Account vs EndUser uploads 9. **Source URL Generation** - Tests automatic and custom URL generation 10. **File Extension Normalization** - Handles various filename formats and edge cases 11. **Filename Validation** - Comprehensive validation including unicode support and length constraints 12. **MIME Type Handling** - Validates MIME type mappings and fallbacks 13. **Storage Key Generation** - Tests format validation and collision resistance 14. **File Hashing Consistency** - Validates SHA3-256 deterministic behavior 15. **Configuration Validation** - Tests upload size limits and blacklist configurations 16. **File Constants** - Validates extension sets and category separation ### Security Features Tested - ✅ Path traversal prevention (../, ..\) - ✅ Invalid character blocking - ✅ Blacklisted extension blocking - ✅ Filename length limits - ✅ File size limits per category - ✅ Content hashing for integrity ### Key Features - **Comprehensive Documentation**: Extensive docstrings and inline comments explaining the purpose and approach of each test - **AAA Pattern**: All tests follow Arrange-Act-Assert pattern for clarity - **Parametrized Tests**: Efficient coverage of multiple scenarios - **Security-Focused**: Critical validation of security-related features - **Maintainable**: Well-structured and easy to understand ### Testing Approach - Tests focus on logic validation rather than integration due to circular import constraints - All tests are isolated and don't depend on external services - Comprehensive coverage ensures robust file upload functionality - Tests serve as documentation for expected behavior ## Screenshots Not applicable - this PR adds unit tests only (no UI changes). ## Test Results ``` ======================================================= 123 passed in 23.78s ======================================================= ``` All tests pass successfully with: - ✅ 123/123 tests passing - ✅ Ruff linter checks passed - ✅ No warnings - ✅ Full coverage of file upload functionality ## Checklist - [ ] This change requires a documentation update, included: [Dify Document](https://github.com/langgenius/dify-docs) - [x] I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!) - [x] I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change. - [x] I've updated the documentation accordingly (comprehensive docstrings and comments in test file). - [x] I ran `dev/reformat`(backend) and `cd web && npx lint-staged`(frontend) to appease the lint gods ## Additional Notes - The test file includes a comprehensive module-level docstring with complete test coverage overview - All tests include detailed docstrings and inline comments for easy understanding - Tests are designed to be maintainable and serve as documentation for the file upload system - Future enhancements can include virus scanning integration tests when implemented Contribution by Gittensor, learn more at https://gittensor.io/
yindo added the pull-request label 2026-02-21 20:50:57 -05:00
yindo closed this issue 2026-02-21 20:50:57 -05:00
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Reference: langgenius/dify#32205
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