Move from deprecated self.test_session() to self.cached_session().

self.test_session() has been deprecated in 9962eb5e84b15e309410071b06c2ed2d6148ed44 as its name confuses readers of the test. Moving to cached_session() instead which is more explicit about:
* the fact that the session may be reused.
* the session is not closed even when doing a "with self.test_session()" statement.

PiperOrigin-RevId: 212336321

1 files changed, 10 insertions, 10 deletions

diff --git a/tensorflow/contrib/crf/python/kernel_tests/crf_test.py b/tensorflow/contrib/crf/python/kernel_tests/crf_test.py
index 8cfe142059..556d731840 100644
--- a/tensorflow/contrib/crf/python/kernel_tests/crf_test.py
+++ b/tensorflow/contrib/crf/python/kernel_tests/crf_test.py
@@ -61,7 +61,7 @@ class CrfTest(test.TestCase):
     for sequence_lengths, inputs, tag_indices in zip(sequence_lengths_list,
                                                      inputs_list,
                                                      tag_indices_list):
-      with self.test_session() as sess:
+      with self.cached_session() as sess:
         sequence_score = crf.crf_sequence_score(
             inputs=array_ops.expand_dims(inputs, 0),
             tag_indices=array_ops.expand_dims(tag_indices, 0),
@@ -96,7 +96,7 @@ class CrfTest(test.TestCase):
     ]
     for sequence_lengths, inputs, tag_bitmap in zip(
         sequence_lengths_list, inputs_list, tag_bitmap_list):
-      with self.test_session() as sess:
+      with self.cached_session() as sess:
         sequence_score = crf.crf_multitag_sequence_score(
             inputs=array_ops.expand_dims(inputs, 0),
             tag_bitmap=array_ops.expand_dims(tag_bitmap, 0),
@@ -124,7 +124,7 @@ class CrfTest(test.TestCase):
     for dtype in (np.int32, np.int64):
       tag_indices = np.array([1, 2, 1, 0], dtype=dtype)
       sequence_lengths = np.array(3, dtype=np.int32)
-      with self.test_session() as sess:
+      with self.cached_session() as sess:
         unary_score = crf.crf_unary_score(
             tag_indices=array_ops.expand_dims(tag_indices, 0),
             sequence_lengths=array_ops.expand_dims(sequence_lengths, 0),
@@ -140,7 +140,7 @@ class CrfTest(test.TestCase):
     transition_params = np.array(
         [[-3, 5, -2], [3, 4, 1], [1, 2, 1]], dtype=np.float32)
     sequence_lengths = np.array(3, dtype=np.int32)
-    with self.test_session() as sess:
+    with self.cached_session() as sess:
       binary_score = crf.crf_binary_score(
           tag_indices=array_ops.expand_dims(tag_indices, 0),
           sequence_lengths=array_ops.expand_dims(sequence_lengths, 0),
@@ -176,7 +176,7 @@ class CrfTest(test.TestCase):
                                                      tag_indices_list):
       num_words = inputs.shape[0]
       num_tags = inputs.shape[1]
-      with self.test_session() as sess:
+      with self.cached_session() as sess:
         all_sequence_scores = []
 
         # Compare the dynamic program with brute force computation.
@@ -206,7 +206,7 @@ class CrfTest(test.TestCase):
     """
     Test `crf_log_norm` when `sequence_lengths` contains one or more zeros.
     """
-    with self.test_session() as sess:
+    with self.cached_session() as sess:
       inputs = constant_op.constant(np.ones([2, 10, 5],
                                             dtype=np.float32))
       transition_params = constant_op.constant(np.ones([5, 5],
@@ -226,7 +226,7 @@ class CrfTest(test.TestCase):
     sequence_lengths = np.array(3, dtype=np.int32)
     num_words = inputs.shape[0]
     num_tags = inputs.shape[1]
-    with self.test_session() as sess:
+    with self.cached_session() as sess:
       all_sequence_log_likelihoods = []
 
       # Make sure all probabilities sum to 1.
@@ -254,7 +254,7 @@ class CrfTest(test.TestCase):
     num_words = inputs.shape[0]
     num_tags = inputs.shape[1]
 
-    with self.test_session() as sess:
+    with self.cached_session() as sess:
       all_sequence_scores = []
       all_sequences = []
 
@@ -310,7 +310,7 @@ class CrfTest(test.TestCase):
       num_words = inputs.shape[0]
       num_tags = inputs.shape[1]
 
-      with self.test_session() as sess:
+      with self.cached_session() as sess:
         all_sequence_scores = []
         all_sequences = []
 
@@ -351,7 +351,7 @@ class CrfTest(test.TestCase):
     """
     Test that crf_decode works when sequence_length contains one or more zeros.
     """
-    with self.test_session() as sess:
+    with self.cached_session() as sess:
       inputs = constant_op.constant(np.ones([2, 10, 5],
                                             dtype=np.float32))
       transition_params = constant_op.constant(np.ones([5, 5],