import pytest
from compose_viz.extends import Extends
from compose_viz.service import Service
    
def test_extend_init():
    try:
        Extends(service_name='frontend', from_file='tests/in/000001.yaml')
        Extends(service_name='frontend')

        assert True
    except:
        assert False

    with pytest.raises(TypeError):
        Extends(from_file='tests/in/000001.yaml')
    
def test_service_init():
    with pytest.raises(ValueError, match=r"Both image and extends are not defined in service 'frontend', aborting."):
        Service(name='frontend')
        
    with pytest.raises(ValueError, match=r"Only one of image and extends can be defined in service '{name}', aborting."):
        Service(name='frontend', image='image', extends=Extends(service_name='frontend', from_file='tests/in/000001.yaml'))