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# ############################################################
# Importing - Same For All Render Layer Tests
# ############################################################
import unittest
import os
import sys
from view_layer_common import *
# ############################################################
# Testing
# ############################################################
class UnitTesting(ViewLayerTesting):
def test_group_write_load(self):
"""
See if saving/loading is working for groups
"""
import bpy
scene = bpy.context.scene
layer_collection = bpy.context.layer_collection
while len(scene.view_layers) > 1:
scene.view_layers.remove(scene.view_layers[1])
# create group
group = layer_collection.create_group()
self.assertEqual(1, len(bpy.data.groups))
self.assertEqual(1, bpy.data.groups[0].users)
self.assertEqual(3, len(bpy.data.groups[0].objects))
import os
import tempfile
with tempfile.TemporaryDirectory() as dirpath:
filepath = os.path.join(dirpath, 'layers.blend')
for i in range(3):
# save and re-open file
bpy.ops.wm.save_mainfile('EXEC_DEFAULT', filepath=filepath)
bpy.ops.wm.open_mainfile('EXEC_DEFAULT', filepath=filepath)
self.assertEqual(1, len(bpy.data.groups))
self.assertEqual(1, bpy.data.groups[0].users)
self.assertEqual(3, len(bpy.data.groups[0].objects))
# empty the group of objects
group = bpy.data.groups[0]
while group.objects:
group.view_layer.collections[0].collection.objects.unlink(group.objects[0])
# save and re-open file
bpy.ops.wm.save_mainfile('EXEC_DEFAULT', filepath=filepath)
bpy.ops.wm.open_mainfile('EXEC_DEFAULT', filepath=filepath)
self.assertEqual(1, len(bpy.data.groups))
self.assertEqual(0, bpy.data.groups[0].users)
self.assertEqual(0, len(bpy.data.groups[0].objects))
# save and re-open file
bpy.ops.wm.save_mainfile('EXEC_DEFAULT', filepath=filepath)
bpy.ops.wm.open_mainfile('EXEC_DEFAULT', filepath=filepath)
self.assertEqual(0, len(bpy.data.groups))
# ############################################################
# Main - Same For All Render Layer Tests
# ############################################################
if __name__ == '__main__':
UnitTesting._extra_arguments = setup_extra_arguments(__file__)
unittest.main()
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