Initial project setup: Obsidian intelligent journal organizer

- Add core agent architecture with Command + Skill pattern
- Implement Claude API integration for content analysis
- Add Obsidian REST API integration for vault operations
- Create conversational interface (v2.0) with natural language processing
- Add comprehensive configuration management and validation
- Include project documentation and developer guides
- Set up testing framework with unit, integration, and property tests
- Add Kiro specs for Claude API configuration and code quality improvements
- Configure project steering files for development guidelines

test_config_loader_integration.py

@@ -0,0 +1,160 @@
+#!/usr/bin/env python3
+"""
+Simple test to verify ConfigurationLoader integration works correctly
+"""
+
+import os
+import tempfile
+from pathlib import Path
+from configuration_loader import ConfigurationLoader, ConfigurationError, EnvironmentVariableError
+
+def test_basic_environment_variable_expansion():
+    """Test basic environment variable expansion functionality"""
+    
+    # Set up test environment variables
+    os.environ['TEST_API_KEY'] = 'test-key-123'
+    os.environ['TEST_URL'] = 'https://test.example.com'
+    
+    # Create test configuration
+    test_config = {
+        'api': {
+            'key': '${TEST_API_KEY}',
+            'url': '${TEST_URL}',
+            'timeout': '${TEST_TIMEOUT:-30}',  # With default value
+            'retries': 3  # No environment variable
+        },
+        'nested': {
+            'values': ['${TEST_API_KEY}', 'static-value', '${TEST_URL}']
+        }
+    }
+    
+    # Test expansion
+    loader = ConfigurationLoader()
+    expanded = loader.expand_environment_variables(test_config)
+    
+    # Verify results
+    assert expanded['api']['key'] == 'test-key-123'
+    assert expanded['api']['url'] == 'https://test.example.com'
+    assert expanded['api']['timeout'] == '30'  # Default value used
+    assert expanded['api']['retries'] == 3  # Unchanged
+    assert expanded['nested']['values'][0] == 'test-key-123'
+    assert expanded['nested']['values'][1] == 'static-value'
+    assert expanded['nested']['values'][2] == 'https://test.example.com'
+    
+    print("✓ Basic environment variable expansion test passed")
+
+def test_missing_required_variable():
+    """Test error handling for missing required environment variables"""
+    
+    # Ensure variable is not set
+    if 'MISSING_VAR' in os.environ:
+        del os.environ['MISSING_VAR']
+    
+    test_config = {
+        'api': {
+            'key': '${MISSING_VAR}'
+        }
+    }
+    
+    loader = ConfigurationLoader()
+    
+    try:
+        loader.expand_environment_variables(test_config)
+        assert False, "Should have raised EnvironmentVariableError"
+    except EnvironmentVariableError as e:
+        assert 'MISSING_VAR' in str(e)
+        print("✓ Missing required variable error test passed")
+
+def test_config_file_loading():
+    """Test loading configuration from YAML file"""
+    
+    # Set up test environment variable
+    os.environ['TEST_CLAUDE_KEY'] = 'sk-ant-test-key'
+    
+    # Create temporary YAML config file
+    yaml_content = """
+obsidian:
+  vault_path: "/tmp/test-vault"
+  rest_api:
+    url: "https://localhost:27123"
+    api_key: "test-obsidian-key"
+    verify_ssl: false
+
+claude:
+  api_key: "${TEST_CLAUDE_KEY}"
+  api_url: "${CLAUDE_URL:-https://api.anthropic.com}"
+  model: "claude-3-5-sonnet-20241022"
+  max_tokens: 4096
+  temperature: 0.7
+"""
+    
+    with tempfile.NamedTemporaryFile(mode='w', suffix='.yaml', delete=False) as f:
+        f.write(yaml_content)
+        temp_file = f.name
+    
+    try:
+        # Load and expand configuration
+        expanded_config = ConfigurationLoader.load_config(temp_file)
+        
+        # Verify expansion worked
+        assert expanded_config['claude']['api_key'] == 'sk-ant-test-key'
+        assert expanded_config['claude']['api_url'] == 'https://api.anthropic.com'  # Default value
+        assert expanded_config['obsidian']['rest_api']['api_key'] == 'test-obsidian-key'
+        
+        print("✓ Config file loading test passed")
+        
+    finally:
+        # Clean up
+        Path(temp_file).unlink()
+
+def test_validation_methods():
+    """Test validation helper methods"""
+    
+    # Set up test environment
+    os.environ['PRESENT_VAR'] = 'present'
+    if 'MISSING_VAR' in os.environ:
+        del os.environ['MISSING_VAR']
+    
+    test_config = {
+        'present': '${PRESENT_VAR}',
+        'missing': '${MISSING_VAR}',
+        'with_default': '${MISSING_VAR:-default_value}'
+    }
+    
+    loader = ConfigurationLoader()
+    
+    # Test validation
+    missing_vars = loader.validate_environment_variables(test_config)
+    assert len(missing_vars) == 1
+    assert 'MISSING_VAR' in missing_vars[0]
+    
+    # Test environment variable references
+    env_refs = loader.get_environment_variable_references(test_config)
+    assert 'PRESENT_VAR' in env_refs
+    assert 'MISSING_VAR' in env_refs
+    assert len(env_refs['MISSING_VAR']) == 2  # Used in 'missing' and 'with_default'
+    
+    print("✓ Validation methods test passed")
+
+if __name__ == '__main__':
+    print("Testing ConfigurationLoader integration...")
+    
+    try:
+        test_basic_environment_variable_expansion()
+        test_missing_required_variable()
+        test_config_file_loading()
+        test_validation_methods()
+        
+        print("\n✅ All tests passed! ConfigurationLoader integration is working correctly.")
+        
+    except Exception as e:
+        print(f"\n❌ Test failed: {e}")
+        import traceback
+        traceback.print_exc()
+        exit(1)
+    
+    finally:
+        # Clean up test environment variables
+        for var in ['TEST_API_KEY', 'TEST_URL', 'TEST_CLAUDE_KEY', 'PRESENT_VAR']:
+            if var in os.environ:
+                del os.environ[var]