TEST: fix python wrapping test, inxml must be a valid file

Modules/Wrappers/SWIG/test/python/CMakeLists.txt

@@ -82,4 +82,5 @@ add_test( NAME pyTvNewStyleParameters
           COMMAND ${TEST_DRIVER} Execute
           ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/PythonNewStyleParametersTest.py
           ${OTB_DATA_ROOT}/Input/poupees.tif
-          ${TEMP}/pyTvNewStyleParametersTest.tif )
+          ${TEMP}/pyTvNewStyleParametersTest.tif
+          ${OTB_DATA_ROOT}/Input/apTvUtSmoothingTest_OutXML.xml)

Modules/Wrappers/SWIG/test/python/PythonNewStyleParametersTest.py

@@ -87,8 +87,8 @@ app.SetParameterString('outputs.mode', 'orthofit')
 cm_assert(app.OUTPUTS.MODE, 'orthofit')
 
 #14 - inputxml parameter set
-app.INXML = 'input.xml'
-cm_assert(app.GetParameterString('inxml'), 'input.xml')
+app.INXML = argv[3]
+cm_assert(app.GetParameterString('inxml'), argv[3])
 
 #15 - outputxml parameter get
 app.SetParameterString('outxml', 'output.xml')