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'''
bg_image_filename in session files
'''
import shutil
import os, unittest
from pymol import cmd, testing
@testing.requires('incentive', 'gui')
class Test1571(testing.PyMOLTestCase):
def test(self):
cmd.set('opaque_background')
with testing.mktemp('tmp.pse') as session_filename:
with testing.mktemp('bg.png') as bg_image_filename:
cmd.bg_color('red')
cmd.png(bg_image_filename)
cmd.bg_color('blue')
cmd.set('bg_image_filename', bg_image_filename)
cmd.save(session_filename)
cmd.load(session_filename)
x = cmd.get('bg_image_filename')
self.assertTrue(x.startswith('data:'))
self.assertImageHasColor('red', delta=4,
msg='bg_image_filename=data: not rendered')
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