[tests] Fix test after the refactor of XmlVisitor: delete optional empty fields

library/test/test_python_api.py

@@ -20,37 +20,37 @@ def feed_model_with_SCC():
     scc = [['I', 'K', 'J', 'L'], ['Y', 'X', 'Z']]
     model = """<?xml version = "1.0" encoding="ASCII" standalone="yes" ?>
 <model xmlns="http://cadbiom" name="">
-  <CSimpleNode name="A" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="B" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="E" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="D" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="C" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="Y" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="X" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="Z" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="I" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="K" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="J" xloc="0.0" yloc="0.0"/>
-  <CSimpleNode name="L" xloc="0.0" yloc="0.0"/>
-  <CStartNode name="__start__0" xloc="0" yloc="0"/>
-  <CStartNode name="__start__1" xloc="0" yloc="0"/>
-  <transition ori="I" ext="J" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="L" ext="I" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="K" ext="L" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="X" ext="Z" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="__start__1" ext="X" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="J" ext="K" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="B" ext="D" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="A" ext="B" event="" condition="C" action="" fact_ids="[]"/>
-  <transition ori="X" ext="C" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="C" ext="B" event="" condition="A" action="" fact_ids="[]"/>
-  <transition ori="I" ext="K" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="D" ext="C" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="J" ext="B" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="__start__0" ext="I" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="Y" ext="X" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="Z" ext="Y" event="" condition="" action="" fact_ids="[]"/>
-  <transition ori="D" ext="E" event="" condition="" action="" fact_ids="[]"/>
+  <CSimpleNode name="A"/>
+  <CSimpleNode name="B"/>
+  <CSimpleNode name="E"/>
+  <CSimpleNode name="D"/>
+  <CSimpleNode name="C"/>
+  <CSimpleNode name="Y"/>
+  <CSimpleNode name="X"/>
+  <CSimpleNode name="Z"/>
+  <CSimpleNode name="I"/>
+  <CSimpleNode name="K"/>
+  <CSimpleNode name="J"/>
+  <CSimpleNode name="L"/>
+  <CStartNode name="__start__0"/>
+  <CStartNode name="__start__1"/>
+  <transition ori="I" ext="J" event="" condition=""/>
+  <transition ori="L" ext="I" event="" condition=""/>
+  <transition ori="K" ext="L" event="" condition=""/>
+  <transition ori="X" ext="Z" event="" condition=""/>
+  <transition ori="__start__1" ext="X" event="" condition=""/>
+  <transition ori="J" ext="K" event="" condition=""/>
+  <transition ori="B" ext="D" event="" condition=""/>
+  <transition ori="A" ext="B" event="" condition="C"/>
+  <transition ori="X" ext="C" event="" condition=""/>
+  <transition ori="C" ext="B" event="" condition="A"/>
+  <transition ori="I" ext="K" event="" condition=""/>
+  <transition ori="D" ext="C" event="" condition=""/>
+  <transition ori="J" ext="B" event="" condition=""/>
+  <transition ori="__start__0" ext="I" event="" condition=""/>
+  <transition ori="Y" ext="X" event="" condition=""/>
+  <transition ori="Z" ext="Y" event="" condition=""/>
+  <transition ori="D" ext="E" event="" condition=""/>
 </model>
 """