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# Test Coverage Documentation
## Overview
This document provides comprehensive test coverage documentation for the SeaweedFS S3 Parquet integration tests.
## Test Categories
### Unit Tests (Go)
- 17 test cases covering S3 API handlers
- Tests for implicit directory handling
- HEAD request behavior validation
- Located in: `weed/s3api/s3api_implicit_directory_test.go`
### Integration Tests (Python)
- 6 test cases for implicit directory fix
- Tests HEAD request behavior on directory markers
- s3fs directory detection validation
- PyArrow dataset read compatibility
- Located in: `test_implicit_directory_fix.py`
### End-to-End Tests (Python)
- 20 test cases combining write and read methods
- Small file tests (5 rows): 10 test combinations
- Large file tests (200,000 rows): 10 test combinations
- Tests multiple write methods: `pads.write_dataset`, `pq.write_table+s3fs`
- Tests multiple read methods: `pads.dataset`, `pq.ParquetDataset`, `pq.read_table`, `s3fs+direct`, `s3fs+buffered`
- Located in: `s3_parquet_test.py`
## Coverage Summary
| Test Type | Count | Status |
|-----------|-------|--------|
| Unit Tests (Go) | 17 | ✅ Pass |
| Integration Tests (Python) | 6 | ✅ Pass |
| End-to-End Tests (Python) | 20 | ✅ Pass |
| **Total** | **43** | **✅ All Pass** |
## TODO
- [ ] Add detailed test execution time metrics
- [ ] Document test data generation strategies
- [ ] Add code coverage percentages for Go tests
- [ ] Document edge cases and corner cases tested
- [ ] Add performance benchmarking results
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