TEST: add a batch test showing the PyQt GUI of each application

Testing/Code/Wrappers/PyQt/CMakeLists.txt

@@ -12,4 +12,19 @@ add_test( NAME pqTvSmoothing
 add_test( NAME pqTvRescale
           COMMAND ${TEST_DRIVER} Execute
                   ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/PyQtTest.py
-                  Rescale )
\ No newline at end of file
+                  Rescale )
+                  
+
+foreach(app ${OTB_APPLICATIONS_NAME_LIST})
+
+add_test(NAME pqTvShow_${app}
+         COMMAND otbTestDriver
+              --add-before-env PYTHONPATH        "${CMAKE_BINARY_DIR}/Code/Wrappers/SWIG"
+              --add-before-env PYTHONPATH        $<TARGET_FILE_DIR:_otbApplication>
+              --add-before-env PYTHONPATH        "${CMAKE_SOURCE_DIR}/Code/Wrappers/PyQt"
+              --add-before-env ITK_AUTOLOAD_PATH $<TARGET_FILE_DIR:otbapp_${app}>
+              Execute ${PYTHON_EXECUTABLE} 
+              ${CMAKE_CURRENT_SOURCE_DIR}/PyQtTest.py
+              ${app})
+       
+endforeach(app)
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