Moved final test assertions to the end of the tests

Signed-off-by: Grzegorz Latosinski <glatosinski@antmicro.com>

tests/test_v2x.py

diff --git a/tests/test_v2x.py b/tests/test_v2x.py
index 9ee323d..f426fd8 100644
--- a/tests/test_v2x.py
+++ b/tests/test_v2x.py
@@ -129,11 +129,11 @@
     convertedgolden = convert.vtr_stylize_xml(modelfile)
     convertedmodel = convert.vtr_stylize_xml(generatedmodelfile)
 
-    assert convertedmodel == convertedgolden
-
     with open(generatedmodelfile, 'w') as model:
         model.write(convertedmodel)
 
+    assert convertedmodel == convertedgolden
+
 
 def test_pbtype_generation_with_vlog_to_pbtype(pbtypecase):
     """Parametrized test that checks  if the pb_type.xml files produced by the
@@ -159,7 +159,7 @@
     convertedgolden = convert.vtr_stylize_xml(testdatafile)
     convertedmodel = convert.vtr_stylize_xml(generatedmodelfile)
 
-    assert convertedmodel == convertedgolden
-
     with open(generatedmodelfile, 'w') as model:
         model.write(convertedmodel)
+
+    assert convertedmodel == convertedgolden