test_xml_deserialization: Add tests for _tag_replace_namespace (#284)

Previously, the function `_tag_replace_namespace` in 
`adapter.xml.xml_deserialization` did not have
corresponding unittests yet. 
This adds the tests for the most common use cases.

test/adapter/xml/test_xml_deserialization.py

@@ -12,6 +12,7 @@
 from basyx.aas import model
 from basyx.aas.adapter.xml import StrictAASFromXmlDecoder, XMLConstructables, read_aas_xml_file, \
  read_aas_xml_file_into, read_aas_xml_element
+from basyx.aas.adapter.xml.xml_deserialization import _tag_replace_namespace
 from basyx.aas.adapter._generic import XML_NS_MAP
 from lxml import etree
 from typing import Iterable, Type, Union
@@ -449,3 +450,29 @@ def construct_submodel(cls, element: etree._Element, object_class=EnhancedSubmod
  self.assertIsInstance(submodel, EnhancedSubmodel)
  assert isinstance(submodel, EnhancedSubmodel)
  self.assertEqual(submodel.enhanced_attribute, "fancy!")
+
+
+class TestTagReplaceNamespace(unittest.TestCase):
+ def test_known_namespace(self):
+ tag = '{https://admin-shell.io/aas/3/0}tag'
+ expected = 'aas:tag'
+ self.assertEqual(_tag_replace_namespace(tag, XML_NS_MAP), expected)
+
+ def test_empty_prefix(self):
+ # Empty prefix should not be replaced as otherwise it would apply everywhere
+ tag = '{https://admin-shell.io/aas/3/0}tag'
+ nsmap = {"": "https://admin-shell.io/aas/3/0"}
+ expected = '{https://admin-shell.io/aas/3/0}tag'
+ self.assertEqual(_tag_replace_namespace(tag, nsmap), expected)
+
+ def test_empty_namespace(self):
+ # Empty namespaces should also have no effect
+ tag = '{https://admin-shell.io/aas/3/0}tag'
+ nsmap = {"aas": ""}
+ expected = '{https://admin-shell.io/aas/3/0}tag'
+ self.assertEqual(_tag_replace_namespace(tag, nsmap), expected)
+
+ def test_unknown_namespace(self):
+ tag = '{http://unknownnamespace.com}unknown'
+ expected = '{http://unknownnamespace.com}unknown' # Unknown namespace should remain unchanged
+ self.assertEqual(_tag_replace_namespace(tag, XML_NS_MAP), expected)