'Unjellying the instance atom is deprecated with 15.0.0.'

def test_deprecatedUnjellyingInstanceAtom(self):

    jelly.unjelly(['instance', ['class', 'twisted.spread.test.test_jelly.A'], ['dictionary']])
    warnings = self.flushWarnings()
    self.assertEqual(len(warnings), 1)
    self.assertEqual(warnings[0]['message'], 'Unjelly    support    for    the    instance    atom    is    deprecated    since    Twisted    15.0.0.        Upgrade    peer    for    modern    instance    support.')
    self.assertEqual(warnings[0]['category'], DeprecationWarning)
