[P1] Testing Suite

[shayonpal]

Description

Create comprehensive test suite covering unit tests, integration tests, and edge cases.

Acceptance Criteria

• Create tests/ directory structure
• Implement unit tests for all core modules
• Add integration tests for end-to-end workflows
• Include mock objects for API calls and file operations
• Test error handling and edge cases
• Add test data and fixtures
• Ensure test coverage reporting

Technical Requirements

• Use pytest as testing framework
• Mock Anthropic API responses for predictable testing
• Test with various snippet content types and edge cases
• Include performance tests for batch operations
• Test Alfred integration without modifying actual snippets

Dependencies

• All P0 issues for testing targets

Files to Create

• tests/init.py
• tests/test_snippet_manager.py
• tests/test_claude_api.py
• tests/test_alfred_utils.py
• tests/test_integration.py
• tests/fixtures/