def test_delete_outoflimits(self):
chain.Insert_Image_Before(self.p_state) # active is 1st
chain.Insert_Image_Before(self.p_state) # active is 2nd
self.assertEqual(system.Get_Index(self.p_state), 2) # active is 2nd
self.assertEqual(chain.Get_NOI(self.p_state), 3) # total 3 images
# test the deletion of a non existing image with positive idx
chain.Delete_Image(self.p_state,
idx_image=5) # delete -5th (not exist)
self.assertEqual(chain.Get_NOI(self.p_state), 3) # total 3 images
# test the deletion of a non existing image with negative idx
chain.Delete_Image(self.p_state,
idx_image=-5) # delete -5th (not exist)
self.assertEqual(chain.Get_NOI(self.p_state), 2) # total 2 images
self.assertEqual(system.Get_Index(self.p_state), 1) # active is 1st
def test_remove_smallest_index_active(self):
'''' Must set the active to the image with the smallest index left'''
chain.Insert_Image_After(self.p_state) # active is 0th
chain.Delete_Image(self.p_state) # delete 0th
self.assertEqual(chain.Get_NOI(self.p_state), 1) # total 1 image
self.assertEqual(system.Get_Index(self.p_state), 0) # active is 0th
def test_delete_trivial(self):
''' Must NOT delete the image of a chain with only one image'''
chain.Delete_Image(self.p_state) # delete 0th
self.assertEqual(chain.Get_NOI(self.p_state), 1) # total 1 image
