def test_wikilink():
    pass

def test_nback_one():
    pass

def test_nback_all():
    pass

def test_nback_range_full():
    pass

def test_nback_range_start():
    pass

def test_nback_range_end():
    pass

def test_triplet_full():

def test_triplet_implicit_single():
    """Test an implicit triplet in a single message"""

def test_triplet_implicit_thread():
    """Test an implicit triplet where the subject is higher up in the thread"""