Files
usher-exploring/tests/test_config.py
gbanyan 4a80a0398e feat(01-01): create Python package scaffold with config system
- pyproject.toml: installable package with bioinformatics dependencies
- Pydantic config schema with validation (ensembl_release >= 100, directory creation)
- YAML config loader with override support
- Default config with Ensembl 113, gnomAD v4.1
- 5 passing tests for config validation and hashing
2026-02-11 16:24:35 +08:00

136 lines
3.6 KiB
Python

"""Tests for configuration loading and validation."""
from pathlib import Path
import pytest
from pydantic import ValidationError
from usher_pipeline.config import load_config, load_config_with_overrides
from usher_pipeline.config.schema import PipelineConfig
def test_load_valid_config():
"""Test loading valid default configuration."""
config = load_config("config/default.yaml")
assert isinstance(config, PipelineConfig)
assert config.versions.ensembl_release == 113
assert config.versions.gnomad_version == "v4.1"
assert config.api.rate_limit_per_second == 5
assert config.api.max_retries == 5
assert config.scoring.gnomad == 0.20
def test_invalid_config_missing_field(tmp_path):
"""Test that missing required field raises ValidationError."""
invalid_config = tmp_path / "invalid.yaml"
invalid_config.write_text("""
versions:
ensembl_release: 113
api:
rate_limit_per_second: 5
scoring:
gnomad: 0.20
""")
with pytest.raises(ValidationError) as exc_info:
load_config(invalid_config)
# Check that error mentions missing field
assert "data_dir" in str(exc_info.value)
def test_invalid_ensembl_release(tmp_path):
"""Test that ensembl_release < 100 raises ValidationError."""
invalid_config = tmp_path / "invalid_ensembl.yaml"
invalid_config.write_text("""
data_dir: data
cache_dir: data/cache
duckdb_path: data/pipeline.duckdb
versions:
ensembl_release: 99
gnomad_version: v4.1
api:
rate_limit_per_second: 5
max_retries: 5
cache_ttl_seconds: 86400
timeout_seconds: 30
scoring:
gnomad: 0.20
expression: 0.20
annotation: 0.15
localization: 0.15
animal_model: 0.15
literature: 0.15
""")
with pytest.raises(ValidationError) as exc_info:
load_config(invalid_config)
# Check that error mentions ensembl_release constraint
error_str = str(exc_info.value)
assert "ensembl_release" in error_str
assert "greater than or equal to 100" in error_str.lower() or "100" in error_str
def test_config_hash_deterministic():
"""Test that config hash is deterministic and changes with config."""
config1 = load_config("config/default.yaml")
config2 = load_config("config/default.yaml")
# Same config should produce same hash
assert config1.config_hash() == config2.config_hash()
# Hash should be SHA-256 (64 hex chars)
assert len(config1.config_hash()) == 64
# Different config should produce different hash
config3 = load_config_with_overrides(
"config/default.yaml",
{"api.rate_limit_per_second": 10},
)
assert config3.config_hash() != config1.config_hash()
def test_config_creates_directories(tmp_path):
"""Test that loading config creates data and cache directories."""
config_file = tmp_path / "test_config.yaml"
# Use non-existent directories
data_dir = tmp_path / "test_data"
cache_dir = tmp_path / "test_cache"
config_file.write_text(f"""
data_dir: {data_dir}
cache_dir: {cache_dir}
duckdb_path: {tmp_path / "test.duckdb"}
versions:
ensembl_release: 113
gnomad_version: v4.1
api:
rate_limit_per_second: 5
max_retries: 5
cache_ttl_seconds: 86400
timeout_seconds: 30
scoring:
gnomad: 0.20
expression: 0.20
annotation: 0.15
localization: 0.15
animal_model: 0.15
literature: 0.15
""")
# Directories should not exist before loading
assert not data_dir.exists()
assert not cache_dir.exists()
# Load config
config = load_config(config_file)
# Directories should be created
assert data_dir.exists()
assert cache_dir.exists()
assert data_dir.is_dir()
assert cache_dir.is_dir()