@Test
public void mapTargetAddressExistingNull() {
SMG origDestSMG = new SMG(destSMG);
SMGNodeMapping origMapping1 = new SMGNodeMapping(mapping1);
SMGJoinMapTargetAddress mta =
new SMGJoinMapTargetAddress(smg1, null, destSMG, mapping1, null, smg1.getNullValue(), null);
Assert.assertEquals(origDestSMG, mta.getSMG());
Assert.assertEquals(origMapping1, mta.getMapping1());
Assert.assertNull(mta.getMapping2());
Assert.assertSame(destSMG.getNullValue(), mta.getValue());
}
