add test

tests/conftest.py

@@ -16,6 +16,14 @@
 ALL_XML = set(DATA.glob("*.ome.xml"))
 INVALID = {DATA / "invalid_xml_annotation.ome.xml", DATA / "bad.ome.xml"}
 OLD_SCHEMA = {DATA / "seq0000xy01c1.ome.xml", DATA / "2008_instrument.ome.xml"}
+WITH_XML_ANNOTATIONS = {
+    DATA / "ome_ns.ome.xml",
+    DATA / "OverViewScan.ome.xml",
+    DATA / "spim.ome.xml",
+    DATA / "xmlannotation-svg.ome.xml",
+    DATA / "xmlannotation-multi-value.ome.xml",
+    DATA / "xmlannotation-body-space.ome.xml",
+}
 
 
 def _true_stem(p: Path) -> str:
@@ -39,6 +47,11 @@ def invalid_xml(request: pytest.FixtureRequest) -> Path:
     return request.param
 
 
+@pytest.fixture(params=sorted(WITH_XML_ANNOTATIONS), ids=_true_stem)
+def with_xml_annotations(request: pytest.FixtureRequest) -> Path:
+    return request.param
+
+
 @pytest.fixture
 def single_xml() -> Path:
     return DATA / "example.ome.xml"

tests/test_model.py

@@ -225,3 +225,19 @@ def test_numpy_pixel_types() -> None:
 
     for m in model.PixelType:
         numpy.dtype(m.numpy_dtype)
+
+
+def test_xml_annotations_to_etree(with_xml_annotations: Path) -> None:
+    from xsdata_pydantic_basemodel.compat import AnyElement
+
+    try:
+        from lxml.etree import _Element as Elem
+    except ImportError:
+        from xml.etree.ElementTree import Element as Elem  # type: ignore
+
+    ome = from_xml(with_xml_annotations)
+    for anno in ome.structured_annotations:
+        if isinstance(anno, model.XMLAnnotation):
+            for elem in anno.value.any_elements:
+                assert isinstance(elem, AnyElement)
+                assert isinstance(elem.to_etree_element(), Elem)