def test_duplicate_vrf(self):
    vrf = VRF.objects.create(name='Test', rd='1:1', enforce_unique=False)
    Prefix.objects.create(vrf=vrf, prefix=netaddr.IPNetwork('192.0.2.0/24'))
    duplicate_prefix = Prefix(vrf=vrf, prefix=netaddr.IPNetwork('192.0.2.0/24'))
    self.assertIsNone(duplicate_prefix.clean())
def test_duplicate_vrf(self):
    vrf = VRF.objects.create(name='Test', rd='1:1', enforce_unique=False)
    Prefix.objects.create(vrf=vrf, prefix=netaddr.IPNetwork('192.0.2.0/24'))
    duplicate_prefix = Prefix(vrf=vrf, prefix=netaddr.IPNetwork('192.0.2.0/24'))
    self.assertIsNone(duplicate_prefix.clean())