add CT_Relationships.new()

Steve Canny · Steve Canny · commit 0b3798d5cb24 · 2013-08-05T15:08:42.000-07:00
diff --git a/opc/oxml.py b/opc/oxml.py
@@ -199,6 +199,10 @@ def new():
         """
         Return a new ``<Relationships>`` element.
         """
+        xml = '<Relationships xmlns="%s"/>' % nsmap['pr']
+        relationships = oxml_fromstring(xml)
+        objectify.deannotate(relationships, cleanup_namespaces=True)
+        return relationships
 
 
 class CT_Types(OxmlBaseElement):
diff --git a/tests/test_oxml.py b/tests/test_oxml.py
@@ -10,7 +10,10 @@
 """Test suite for opc.oxml module."""
 
 from opc.constants import RELATIONSHIP_TARGET_MODE as RTM
-from opc.oxml import CT_Default, CT_Override, CT_Relationship, CT_Types
+from opc.oxml import (
+    CT_Default, CT_Override, CT_Relationship, CT_Relationships, CT_Types,
+    oxml_tostring
+)
 
 from .unitdata import a_Default, an_Override, a_Relationship, a_Types
 
@@ -68,6 +71,19 @@ def it_can_construct_from_attribute_values(self):
             assert rel.xml == expected_rel_xml
 
 
+class DescribeCT_Relationships(object):
+
+    def it_can_construct_a_new_relationships_element(self):
+        rels = CT_Relationships.new()
+        actual_xml = oxml_tostring(rels, encoding='unicode',
+                                   pretty_print=True)
+        expected_xml = (
+            '<Relationships xmlns="http://schemas.openxmlformats.org/package'
+            '/2006/relationships"/>\n'
+        )
+        assert actual_xml == expected_xml
+
+
 class DescribeCT_Types(object):
 
     def it_provides_access_to_default_child_elements(self):
