.. _program_listing_file_Testing_Python_LogicTest.py:

Program Listing for File LogicTest.py
=====================================

|exhale_lsh| :ref:`Return to documentation for file <file_Testing_Python_LogicTest.py>` (``Testing/Python/LogicTest.py``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: py

   import slicer
   from slicer import vtkSlicerLayerDMLogic, vtkMRMLLayerDMWidgetEventTranslationNode
   from slicer.ScriptedLoadableModule import ScriptedLoadableModuleTest
   
   
   class LogicTest(ScriptedLoadableModuleTest):
       def setUp(self):
           slicer.mrmlScene.Clear(0)
   
       def test_can_attach_translation_nodes_to_other_nodes(self):
           node = slicer.mrmlScene.AddNewNodeByClass("vtkMRMLModelNode")
           assert node is not None
   
           tl_node = slicer.mrmlScene.AddNewNodeByClass("vtkMRMLLayerDMWidgetEventTranslationNode")
           assert tl_node is not None
   
           vtkSlicerLayerDMLogic.SetWidgetEventTranslationNode(node, tl_node)
           assert vtkSlicerLayerDMLogic.GetWidgetEventTranslationNode(node) == tl_node
   
       def test_can_register_singleton_translation_nodes(self):
           assert vtkSlicerLayerDMLogic.GetWidgetEventTranslationSingleton(slicer.mrmlScene, "MyTLNodeSingleton") is None
           tl_node = vtkSlicerLayerDMLogic.CreateWidgetEventTranslationSingleton(slicer.mrmlScene, "MyTLNodeSingleton")
           assert tl_node is not None
           assert isinstance(tl_node, vtkMRMLLayerDMWidgetEventTranslationNode)
           assert not tl_node.GetSaveWithScene()
   
       def test_singleton_translation_nodes_are_created_once(self):
           tl_node = vtkSlicerLayerDMLogic.CreateWidgetEventTranslationSingleton(slicer.mrmlScene, "MyTLNodeSingleton")
           assert vtkSlicerLayerDMLogic.CreateWidgetEventTranslationSingleton(slicer.mrmlScene, "MyTLNodeSingleton") == tl_node
   
       def test_can_attach_singleton_tl_node(self):
           node = slicer.mrmlScene.AddNewNodeByClass("vtkMRMLModelNode")
           assert node is not None
           tl_node = vtkSlicerLayerDMLogic.CreateWidgetEventTranslationSingleton(slicer.mrmlScene, "MyTLNodeSingleton")
           vtkSlicerLayerDMLogic.SetWidgetEventTranslationNode(node, tl_node)
           assert vtkSlicerLayerDMLogic.GetWidgetEventTranslationNode(node) == tl_node