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from vtkmodules.test import Testing as vtkTesting
class TestUpdateObjectFromState(vtkTesting.vtkTest):
def test1(self):
from vtkmodules.vtkSerializationManager import vtkObjectManager
import json
# Scenario 1:
# A state is registered and deserialized. Later certain properties are modified on the state.
# Call UpdateObjectFromState() with modified state. Verify the real object's properties match
# with the state's properties.
manager = vtkObjectManager()
manager.Initialize()
camState = {"Id": 1, "ClassName": "vtkCamera", "SuperClassNames": ["vtkObject"],
"vtk-object-manager-kept-alive": True, }
manager.RegisterState(json.dumps(camState))
manager.UpdateObjectsFromStates()
camState["Position"] = (0, 0.2, 1.3)
camState["ViewAngle"] = 60
manager.UpdateObjectFromState(json.dumps(camState))
camera = manager.GetObjectAtId(1)
self.assertTupleEqual(camera.GetPosition(), (0, 0.2, 1.3))
self.assertEqual(camera.GetViewAngle(), 60)
def test2(self):
from vtkmodules.vtkSerializationManager import vtkObjectManager
from vtkmodules.vtkRenderingCore import vtkCamera
import json
# Scenario 2:
# An object is registered and serialized. Later certain properties are modified on the state.
# Call UpdateObjectFromState() with modified state. Verify the real object's properties match
# with the state's properties.
manager = vtkObjectManager()
manager.Initialize()
camera = vtkCamera()
manager.RegisterObject(camera)
manager.UpdateStatesFromObjects()
camState = json.loads(manager.GetState(1))
camState["Position"] = (0, 0.2, 1.3)
camState["ViewAngle"] = 60
manager.UpdateObjectFromState(json.dumps(camState))
self.assertTupleEqual(camera.GetPosition(), (0, 0.2, 1.3))
self.assertEqual(camera.GetViewAngle(), 60)
def test3(self):
from vtkmodules.vtkSerializationManager import vtkObjectManager
from vtkmodules.vtkRenderingCore import vtkCamera
import json
# Scenario 3:
# An object is registered and serialized. Later, a new state is created with modified properties.
# Unlike Scenario 2, this new state does not have keys that were originally part of the state like
# "ClassName", "SuperClassNames" and "vtk-object-manager-kept-alive"
# Call UpdateObjectFromState() with modified state. Verify the real object's properties match
# with the state's properties.
manager = vtkObjectManager()
manager.Initialize()
camera = vtkCamera()
cid = manager.RegisterObject(camera)
manager.UpdateStatesFromObjects()
manager.UpdateObjectFromState(json.dumps({"Id": cid, "Position": (0, 0.2, 1.3)}))
self.assertTupleEqual(camera.GetPosition(), (0, 0.2, 1.3))
manager.UpdateObjectFromState(json.dumps({"Id": cid, "ViewAngle": 60}))
self.assertEqual(camera.GetViewAngle(), 60)
if __name__ == "__main__":
vtkTesting.main([(TestUpdateObjectFromState, 'test')])
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