Add Microsoft's edm namespace to whitelisted

Resolves: SAP#16

Author: mamiksik

pyodata/v2/model.py

@@ -2037,6 +2037,7 @@ def sap_attribute_get_bool(node, attr, default):
 
 EDM_WHITELIST = [
     'http://schemas.microsoft.com/ado/2008/09/edm',
+    'http://schemas.microsoft.com/ado/2009/11/edm',
     'http://docs.oasis-open.org/odata/ns/edm'
 ]
 

tests/test_model_v2.py

@@ -897,3 +897,17 @@ def test_unsupported_schema_n(mock_from_etree, metadata_builder_factory):
         assert str(ex) == f'Unsupported Schema namespace - {edm}'
 
     mock_from_etree.assert_called_once()
+
+
+@patch.object(Schema, 'from_etree')
+def test_whitelisted_edm_namespace(mock_from_etree, metadata_builder_factory):
+    """Test correct handling of whitelisted Microsoft's edm namespace"""
+
+    builder = metadata_builder_factory()
+    builder.namespaces['edm'] = 'http://schemas.microsoft.com/ado/2009/11/edm'
+    builder.add_schema('', '')
+    xml = builder.serialize()
+
+    Edmx.parse(xml)
+    assert Schema.from_etree is mock_from_etree
+    mock_from_etree.assert_called_once()