Set length by default

import unittest

from deepchem.models import TextCNNModel

from deepchem.models.tensorgraph.models.text_cnn import default_dict

class TestTextCNNModel(unittest.TestCase):

  def test_set_length(self):

    model = TextCNNModel(1, default_dict, 1)

    self.assertEqual(model.seq_length, max(model.kernel_sizes))

    large_length = 500

    model = TextCNNModel(1, default_dict, large_length)

    self.assertEqual(model.seq_length, large_length)

    """

    self.n_tasks = n_tasks

    self.char_dict = char_dict

    self.seq_length = seq_length

    self.seq_length = max(seq_length, max(kernel_sizes))

    self.n_embedding = n_embedding

    self.kernel_sizes = kernel_sizes

    self.num_filters = num_filters