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'''
PYMOL-2687 byring selection operator
'''
from pymol import cmd, CmdException, testing, stored
class TestPYMOL2687(testing.PyMOLTestCase):
@testing.requires_version('1.8.1.0')
def testByRing(self):
cmd.fragment('trp')
self.assertEqual(cmd.count_atoms('byring name CB'), 0)
self.assertEqual(cmd.count_atoms('byring name CG'), 5)
self.assertEqual(cmd.count_atoms('byring name CD2'), 9)
self.assertEqual(cmd.count_atoms('byring name CE3'), 6)
self.assertEqual(cmd.count_atoms('byring all'), 9)
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