new_contents: import pytest
  
  
  from khmer import _Countgraph, _Counttable, _SmallCountgraph, _SmallCounttable
  from khmer import _Nodegraph, _Nodetable
  
  PRIMES_1m = [1000003, 1009837]
  
  
  @pytest.fixture(params=[_Countgraph, _Counttable, _SmallCountgraph,
                          _SmallCounttable, _Nodegraph, _Nodetable])
  def tabletype(request):
      return request.param
  
  
  def test_presence(tabletype):
      tt = tabletype(12, PRIMES_1m)
  
      kmer = 'G' * 12
      hashval = tt.hash('G' * 12)
  
      assert tt.get(kmer) == 0
      assert tt.get(hashval) == 0
  
      tt.add(kmer)
      assert tt.get(kmer) == 1
      assert tt.get(hashval) == 1
  
  
subject: add test_tabletype.py as an initial stab