message: TST: test case for string
diff: @@ -364,6 +364,16 @@ class ScatterNdTest(test.TestCase):
  del input_ # input_ is not used in scatter_nd
  return array_ops.scatter_nd(indices, updates, shape)
  + def testString(self):
  + indices = constant_op.constant([[4], [3], [1], [7]], dtype=dtypes.int32)
  + updates = constant_op.constant(["four", "three", "one", "seven"], dtype=dtypes.string)
  + expected = np.array(["", "one", "", "three", "four", "", "", "seven"])
  + scatter = self.scatter_nd(indices, updates, shape=(8,))
  +
  + with self.test_session() as sess:
  + result = sess.run(scatter)
  + self.assertTrue(np.array_equal(result, expected))
  +
  def testRank3ValidShape(self):
  indices = array_ops.zeros([2, 2, 2], dtypes.int32)
  updates = array_ops.zeros([2, 2, 2], dtypes.int32)
  