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function test_database_schema

Maturity: 44

A test function that validates database schema updates, specifically testing the storage and retrieval of TextSection objects with analysis_session_id fields using an in-memory SQLite database.

File:
/tf/active/vicechatdev/vice_ai/test_integration.py
Lines:
96 - 131
Complexity:
simple

Purpose

This function serves as a unit test to verify that the database schema correctly handles TextSection objects with analysis_session_id attributes. It creates an in-memory database, saves a TextSection with an analysis_session_id, retrieves it, and validates that the data persists correctly. This is useful for regression testing after schema migrations or updates to ensure backward compatibility and data integrity.

Source Code

def test_database_schema():
    """Test database schema updates"""
    print("\\nTesting database schema...")
    
    try:
        from models import DatabaseManager
        
        # Create in-memory database
        db = DatabaseManager(':memory:')
        print("✅ Database manager created successfully")
        
        # Test text section with analysis_session_id
        from models import TextSection, SectionType
        section = TextSection(
            id="test-section",
            owner="test@example.com",
            title="Test Section",
            section_type=SectionType.DATA_ANALYSIS,
            analysis_session_id="test-analysis-session"
        )
        
        # Save and retrieve
        success = db.save_text_section(section)
        assert success, "Failed to save text section"
        print("✅ Text section with analysis_session_id saved successfully")
        
        retrieved = db.get_text_section("test-section")
        assert retrieved is not None, "Failed to retrieve text section"
        assert retrieved.analysis_session_id == "test-analysis-session"
        print("✅ Text section with analysis_session_id retrieved successfully")
        
        return True
        
    except Exception as e:
        print(f"❌ Database test error: {e}")
        return False

Return Value

Returns a boolean value: True if all database operations (creation, save, retrieval, and validation) succeed; False if any exception occurs during testing. The function also prints status messages with checkmarks (✅) for successful operations or error messages (❌) for failures.

Dependencies

  • models

Required Imports

from models import DatabaseManager
from models import TextSection
from models import SectionType

Conditional/Optional Imports

These imports are only needed under specific conditions:

from models import DatabaseManager

Condition: imported inside try block for error handling during test execution

Required (conditional) 
from models import TextSection, SectionType

Condition: imported inside try block after DatabaseManager is successfully imported

Required (conditional)

Usage Example

# Run the test function
result = test_database_schema()

if result:
    print("All database schema tests passed")
else:
    print("Database schema tests failed")

# Expected output:
# 
# Testing database schema...
# ✅ Database manager created successfully
# ✅ Text section with analysis_session_id saved successfully
# ✅ Text section with analysis_session_id retrieved successfully

Best Practices

  • This function uses an in-memory database (':memory:') to avoid side effects on production data
  • The function uses assertions to validate expected behavior, which will raise AssertionError if conditions fail
  • All imports are done inside a try-except block to handle missing dependencies gracefully
  • The function prints progress messages with visual indicators (✅/❌) for easy test result interpretation
  • This is a test function and should be run in a testing environment, not in production code
  • The function returns boolean values to allow integration with test frameworks or CI/CD pipelines
  • Consider using this as a template for additional database schema tests by modifying the TextSection attributes being tested

Tags

testing database schema validation unit-test sqlite in-memory-database text-section data-persistence regression-test

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