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A unit test function that validates the structure and content of the /api/models endpoint response, ensuring it contains the correct model configuration data.

Purpose

This test function verifies that the API models endpoint returns a properly formatted response with the expected keys ('models' and 'default_model'), contains exactly 4 models, and has 'gpt-4o' set as the default model. It simulates the endpoint response by directly accessing configuration values and performs assertions to validate the data structure.

Source Code

def test_api_models_endpoint():
    """Test the /api/models endpoint returns correct format"""
    print("=" * 60)
    print("TEST 4: API Models Endpoint Format")
    print("=" * 60)
    
    import config
    
    # Simulate what the endpoint should return
    expected_response = {
        'models': config.AVAILABLE_MODELS,
        'default_model': config.DEFAULT_MODEL
    }
    
    assert 'models' in expected_response, "Response missing 'models' key"
    assert 'default_model' in expected_response, "Response missing 'default_model' key"
    assert len(expected_response['models']) == 4, "Should have 4 models"
    assert expected_response['default_model'] == 'gpt-4o', "Default should be gpt-4o"
    
    print("✓ API response format is correct")
    print(f"  - models: {list(expected_response['models'].keys())}")
    print(f"  - default_model: {expected_response['default_model']}")
    print()

Return Value

This function does not return any value (implicitly returns None). It performs assertions that will raise AssertionError if any validation fails, and prints test results to stdout upon success.

Dependencies

• config

Required Imports

import config

Usage Example

# Ensure config.py exists with required settings:
# config.py should contain:
# AVAILABLE_MODELS = {'gpt-4o': {...}, 'gpt-4o-mini': {...}, 'o1-preview': {...}, 'o1-mini': {...}}
# DEFAULT_MODEL = 'gpt-4o'

import config

# Run the test
test_api_models_endpoint()

# Expected output:
# ============================================================
# TEST 4: API Models Endpoint Format
# ============================================================
# ✓ API response format is correct
#   - models: ['gpt-4o', 'gpt-4o-mini', 'o1-preview', 'o1-mini']
#   - default_model: gpt-4o

Best Practices

• This test should be run as part of a test suite, not in production code
• Ensure the config module is properly configured before running this test
• The test makes hard-coded assumptions about the number of models (4) and default model ('gpt-4o'), which may need updating if configuration changes
• Consider using a testing framework like pytest or unittest for better test organization and reporting
• The test prints output directly to stdout; consider using proper test logging or assertion messages for better integration with test runners
• This test does not actually call the API endpoint; it only validates the expected response structure based on config values

Tags

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