tests: mark known failures

Author: igneus

tests/test_xml.py

@@ -7,6 +7,7 @@
 import os
 import os.path
 import io
+import pytest
 import re
 import sys
 
@@ -45,6 +46,7 @@ def test_mark():
     compare_output('mark')
 
 
+@pytest.mark.xfail
 def test_partial():
     compare_output('partial')
 
@@ -61,6 +63,7 @@ def test_church():
     compare_output('church_modes')
 
 
+@pytest.mark.xfail
 def test_markup():
     compare_output('markup')