new_contents: from microscopes.common.rng import rng
  from microscopes.lda.definition import model_definition
  from microscopes.lda.model import initialize
  from microscopes.lda.testutil import toy_dataset
  from microscopes.common.variadic.dataview import numpy_dataview
  
  from nose.tools import assert_equals
  
  
  def test_simple():
      N, V = 10, 100
      defn = model_definition(N, V)
      data = toy_dataset(defn)
      view = data
      prng = rng()
      s = initialize(defn, view, prng)
      assert_equals(s.nentities(), len(data))
  
subject: Add stephen's test_state.py