#!/usr/bin/env python3
"""Comprehensive error handling tests for ReflectionDatabase operations.
Tests various error scenarios, exception handling, and recovery mechanisms
to ensure robust error handling throughout the database operations.
"""
from __future__ import annotations
import tempfile
from pathlib import Path
from typing import Any
import pytest
from session_buddy.reflection_tools import ReflectionDatabase
class TestReflectionDatabaseErrorHandling:
"""Error handling tests for ReflectionDatabase operations."""
@pytest.mark.asyncio
async def test_invalid_database_path(self):
"""Test handling of invalid database paths."""
# Test with invalid path
invalid_path = "/invalid/path/that/does/not/exist/test.db"
db = ReflectionDatabase(invalid_path)
# Should handle invalid path gracefully
try:
await db.initialize()
# If it succeeds, it should still work (DuckDB creates the file)
assert db.conn is not None
except Exception as e:
# Some environments might not allow creating files in invalid paths
assert "permission" in str(e).lower() or "directory" in str(e).lower()
finally:
if hasattr(db, "conn") and db.conn is not None:
db.close()
@pytest.mark.asyncio
async def test_null_database_path(self):
"""Test handling of null/None database path."""
# Test with None path
with pytest.raises((TypeError, ValueError)):
db = ReflectionDatabase(None)
await db.initialize()
@pytest.mark.asyncio
async def test_empty_database_path(self):
"""Test handling of empty database path."""
# Test with empty path
db = ReflectionDatabase("")
try:
await db.initialize()
# Should handle empty path (might create in current directory)
assert db.conn is not None
except Exception as e:
# Some implementations might reject empty paths
assert "path" in str(e).lower() or "invalid" in str(e).lower()
finally:
if hasattr(db, "conn") and db.conn is not None:
db.close()
@pytest.mark.asyncio
async def test_invalid_reflection_id_format(self):
"""Test handling of invalid reflection ID formats."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with invalid ID formats
invalid_ids = [
"", # Empty string
"not-a-valid-uuid", # Not a UUID
"123", # Too short
"a" * 100, # Too long
None, # None value
]
for invalid_id in invalid_ids:
# These should not crash, but return None or handle gracefully
result = await db.get_reflection(invalid_id)
assert result is None
finally:
db.close()
@pytest.mark.asyncio
async def test_none_content_handling(self):
"""Test handling of None content."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with None content
with pytest.raises((TypeError, ValueError)):
await db.store_reflection(None, [], "test-project")
finally:
db.close()
@pytest.mark.asyncio
async def test_none_project_handling(self):
"""Test handling of None project."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with None project
reflection_id = await db.store_reflection("Test content", [], None)
retrieved = await db.get_reflection(reflection_id)
assert retrieved["project"] is None or retrieved["project"] == ""
finally:
db.close()
@pytest.mark.asyncio
async def test_none_tags_handling(self):
"""Test handling of None tags."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with None tags
reflection_id = await db.store_reflection(
"Test content", None, "test-project"
)
retrieved = await db.get_reflection(reflection_id)
assert retrieved["tags"] == [] or retrieved["tags"] is None
finally:
db.close()
@pytest.mark.asyncio
async def test_duplicate_reflection_storage(self):
"""Test handling of duplicate reflection storage."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Store same content multiple times
content = "Duplicate test content"
id1 = await db.store_reflection(content, ["test"], "test-project")
id2 = await db.store_reflection(content, ["test"], "test-project")
# Should create different reflections with different IDs
assert id1 != id2
retrieved1 = await db.get_reflection(id1)
retrieved2 = await db.get_reflection(id2)
assert retrieved1["content"] == content
assert retrieved2["content"] == content
assert retrieved1["id"] != retrieved2["id"]
finally:
db.close()
@pytest.mark.asyncio
async def test_search_with_none_query(self):
"""Test handling of None search query."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with None query
with pytest.raises((TypeError, ValueError)):
await db.search_reflections(None, 10, "test-project")
finally:
db.close()
@pytest.mark.asyncio
async def test_search_with_none_project(self):
"""Test handling of None project in search."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with None project
results = await db.search_reflections("test", 10, None)
assert isinstance(results, list)
finally:
db.close()
@pytest.mark.asyncio
async def test_search_with_none_tags(self):
"""Test handling of None tags in search."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with None tags
results = await db.search_reflections(
"test", 10, "test-project", tags=None
)
assert isinstance(results, list)
finally:
db.close()
@pytest.mark.asyncio
async def test_update_with_none_content(self):
"""Test handling of None content in update."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Store a reflection
reflection_id = await db.store_reflection(
"Original content", ["test"], "test-project"
)
# Try to update with None content
with pytest.raises((TypeError, ValueError)):
await db.update_reflection(reflection_id, None, ["updated"])
finally:
db.close()
@pytest.mark.asyncio
async def test_update_with_none_tags(self):
"""Test handling of None tags in update."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Store a reflection
reflection_id = await db.store_reflection(
"Original content", ["test"], "test-project"
)
# Update with None tags
await db.update_reflection(reflection_id, "Updated content", None)
retrieved = await db.get_reflection(reflection_id)
assert retrieved["content"] == "Updated content"
assert retrieved["tags"] == [] or retrieved["tags"] is None
finally:
db.close()
@pytest.mark.asyncio
async def test_delete_with_none_id(self):
"""Test handling of None ID in delete."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Try to delete with None ID
with pytest.raises((TypeError, ValueError)):
await db.delete_reflection(None)
finally:
db.close()
@pytest.mark.asyncio
async def test_database_connection_errors(self):
"""Test handling of database connection errors."""
# Test with invalid database path that should fail
invalid_path = "/root/protected/test.db" # Typically requires root access
db = ReflectionDatabase(invalid_path)
try:
await db.initialize()
# If it succeeds, it's fine (some systems allow it)
except (PermissionError, OSError) as e:
# Should handle permission errors gracefully
assert "permission" in str(e).lower() or "access" in str(e).lower()
except Exception as e:
# Other types of errors might occur
assert "database" in str(e).lower() or "connection" in str(e).lower()
finally:
if hasattr(db, "conn") and db.conn is not None:
db.close()
@pytest.mark.asyncio
async def test_concurrent_access_errors(self):
"""Test handling of concurrent access scenarios."""
import asyncio
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
async def conflicting_operations():
# Store initial reflection
reflection_id = await db.store_reflection(
"Original", ["test"], "test-project"
)
# Try to update and delete simultaneously
update_task = db.update_reflection(
reflection_id, "Updated", ["updated"]
)
delete_task = db.delete_reflection(reflection_id)
await asyncio.gather(
update_task, delete_task, return_exceptions=True
)
# This should not crash, even if operations conflict
await conflicting_operations()
finally:
db.close()
@pytest.mark.asyncio
async def test_memory_pressure_scenarios(self):
"""Test handling of memory pressure scenarios."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Store large amount of data to test memory handling
for i in range(1000):
content = "A" * 10000 # 10KB content
await db.store_reflection(content, ["memory-test"], "test-project")
# Should still be able to perform operations
results = await db.search_reflections("memory", 10, "test-project")
assert isinstance(results, list)
assert len(results) > 0
finally:
db.close()
@pytest.mark.asyncio
async def test_corrupted_database_recovery(self):
"""Test handling of corrupted database scenarios."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
# Create and populate database
db1 = ReflectionDatabase(str(db_path))
await db1.initialize()
try:
# Store some data
await db1.store_reflection("Test content", ["test"], "test-project")
# Close database
db1.close()
# Corrupt the database file by writing invalid data
with open(db_path, "a") as f:
f.write("CORRUPTED DATA" * 100)
# Try to reopen corrupted database
db2 = ReflectionDatabase(str(db_path))
try:
await db2.initialize()
# If it succeeds, it handled corruption well
# If it fails, it should fail gracefully
except Exception as e:
# Should handle corruption gracefully
assert "database" in str(e).lower() or "corrupt" in str(e).lower()
finally:
if hasattr(db2, "conn") and db2.conn is not None:
db2.close()
finally:
if hasattr(db1, "conn") and db1.conn is not None:
db1.close()
@pytest.mark.asyncio
async def test_invalid_sql_injection_attempts(self):
"""Test handling of SQL injection attempts."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test SQL injection attempts in content
malicious_content = "'; DROP TABLE reflections; --"
reflection_id = await db.store_reflection(
malicious_content, ["test"], "test-project"
)
# Should store the content safely (escaped)
retrieved = await db.get_reflection(reflection_id)
assert retrieved["content"] == malicious_content
# Verify table still exists
stats = await db.get_stats()
assert stats["total_reflections"] >= 1
finally:
db.close()
@pytest.mark.asyncio
async def test_unicode_error_handling(self):
"""Test handling of unicode-related errors."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test with various unicode characters
unicode_content = (
"Test with unicode: 你好世界 🌍 café naïve \ud83d\udcbb"
)
reflection_id = await db.store_reflection(
unicode_content, ["unicode"], "test-project"
)
retrieved = await db.get_reflection(reflection_id)
assert retrieved["content"] == unicode_content
finally:
db.close()
@pytest.mark.asyncio
async def test_resource_leak_detection(self):
"""Test for resource leaks in database operations."""
import gc
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
# Create multiple database instances
databases = []
for i in range(5):
db = ReflectionDatabase(str(db_path))
await db.initialize()
databases.append(db)
# Close all databases
for db in databases:
db.close()
# Force garbage collection
gc.collect()
# Should not crash or leak resources
assert True # If we get here, no obvious leaks
@pytest.mark.asyncio
async def test_error_recovery_after_failure(self):
"""Test error recovery after operation failures."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Store some data
reflection_id = await db.store_reflection(
"Test content", ["test"], "test-project"
)
# Verify it exists
retrieved = await db.get_reflection(reflection_id)
assert retrieved is not None
# Delete it
await db.delete_reflection(reflection_id)
# Verify it's deleted
deleted = await db.get_reflection(reflection_id)
assert deleted is None
# Should still be able to perform other operations
new_id = await db.store_reflection(
"New content", ["recovery"], "test-project"
)
new_retrieved = await db.get_reflection(new_id)
assert new_retrieved is not None
finally:
db.close()
@pytest.mark.asyncio
async def test_invalid_operation_sequences(self):
"""Test handling of invalid operation sequences."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Try to update non-existent reflection
await db.update_reflection("nonexistent-id", "Content", ["test"])
# Try to delete non-existent reflection
await db.delete_reflection("nonexistent-id")
# Try to get non-existent reflection
result = await db.get_reflection("nonexistent-id")
assert result is None
# Should still work normally after invalid operations
valid_id = await db.store_reflection(
"Valid content", ["test"], "test-project"
)
valid_result = await db.get_reflection(valid_id)
assert valid_result is not None
finally:
db.close()
@pytest.mark.asyncio
async def test_database_locking_scenarios(self):
"""Test handling of database locking scenarios."""
import asyncio
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
async def concurrent_writes():
tasks = []
for i in range(10):
task = db.store_reflection(
f"Concurrent {i}", ["test"], "test-project"
)
tasks.append(task)
# Should handle concurrent writes without deadlocks
await asyncio.gather(*tasks, return_exceptions=True)
await concurrent_writes()
# Verify all operations completed
stats = await db.get_stats()
assert stats["total_reflections"] >= 10
finally:
db.close()
@pytest.mark.asyncio
async def test_error_messages_quality(self):
"""Test quality and helpfulness of error messages."""
with tempfile.TemporaryDirectory() as tmpdir:
db_path = Path(tmpdir) / "test.db"
db = ReflectionDatabase(str(db_path))
await db.initialize()
try:
# Test various error scenarios and verify error messages
try:
await db.store_reflection(None, [], "test-project")
except Exception as e:
error_msg = str(e)
# Error message should be informative
assert len(error_msg) > 10
assert any(
word in error_msg.lower()
for word in ["content", "null", "invalid", "required"]
)
finally:
db.close()
