import pytest

from iiwa_genesis.runtime import plain_urdf_source


def test_adapter_disables_only_xacro_path():
    source = "import xacro\ndef load_xacro(path, mappings):\n return xacro.process_file(path)\ndef load_plain():\n return 7\n"
    namespace = {}
    exec(plain_urdf_source(source, "test.py"), namespace)
    assert namespace["load_plain"]() == 7
    assert "xacro" not in namespace
    with pytest.raises(RuntimeError, match="disabled"):
        namespace["load_xacro"]("foo.xacro", {})


def test_adapter_rejects_changed_upstream():
    with pytest.raises(RuntimeError, match="changed"):
        plain_urdf_source("def load_plain(): pass", "test.py")