def METHOD_NAME(self, dummy_request, test_data):
    from c2cgeoportal_geoportal.views.vector_tiles import VectorTilesViews
    request = dummy_request
    request.matchdict["layer_name"] = "not_existing_layer_name"
    request.matchdict["z"] = 11
    request.matchdict["x"] = 0
    request.matchdict["y"] = 0
    with pytest.raises(HTTPNotFound) as excinfo:
        VectorTilesViews(request).vector_tiles()
    assert "Not found any vector tile layer named not_existing_layer_name"