Fix import errors in unitests.

Author: xinghai-sun

deep_speech_2/models/tests/test_decoders.py

@@ -4,7 +4,7 @@
 from __future__ import print_function
 
 import unittest
-from decoder import *
+from models import decoder
 
 
 class TestDecoders(unittest.TestCase):
@@ -53,11 +53,13 @@ def setUp(self):
         self.beam_search_result = ['acdc', "b'a"]
 
     def test_greedy_decoder_1(self):
-        bst_result = ctc_greedy_decoder(self.probs_seq1, self.vocab_list)
+        bst_result = decoder.ctc_greedy_decoder(self.probs_seq1,
+                                                self.vocab_list)
         self.assertEqual(bst_result, self.greedy_result[0])
 
     def test_greedy_decoder_2(self):
-        bst_result = ctc_greedy_decoder(self.probs_seq2, self.vocab_list)
+        bst_result = decoder.ctc_greedy_decoder(self.probs_seq2,
+                                                self.vocab_list)
         self.assertEqual(bst_result, self.greedy_result[1])
 
     def test_beam_search_decoder_1(self):

deep_speech_2/utils/tests/test_error_rate.py

@@ -5,7 +5,7 @@
 from __future__ import print_function
 
 import unittest
-import error_rate
+from utils import error_rate
 
 
 class TestParse(unittest.TestCase):