1 files changed, 34 insertions, 0 deletions
diff --git a/tensorflow/python/kernel_tests/string_to_hash_bucket_op_test.py b/tensorflow/python/kernel_tests/string_to_hash_bucket_op_test.py
new file mode 100644
index 0000000000..8615b271b8
--- /dev/null
+++ b/tensorflow/python/kernel_tests/string_to_hash_bucket_op_test.py
@@ -0,0 +1,34 @@
+"""Tests for StringToHashBucket op from string_ops."""
+import tensorflow.python.platform
+
+import tensorflow as tf
+
+
+class StringToHashBucketOpTest(tf.test.TestCase):
+
+  def testStringToOneHashBucket(self):
+    with self.test_session():
+      input_string = tf.placeholder(tf.string)
+      output = tf.string_to_hash_bucket(input_string, 1)
+      result = output.eval(feed_dict={
+          input_string: ['a', 'b', 'c']
+      })
+
+      self.assertAllEqual([0, 0, 0], result)
+
+  def testStringToHashBuckets(self):
+    with self.test_session():
+      input_string = tf.placeholder(tf.string)
+      output = tf.string_to_hash_bucket(input_string, 10)
+      result = output.eval(feed_dict={
+          input_string: ['a', 'b', 'c']
+      })
+
+      # Hash64('a') -> 2996632905371535868 -> mod 10 -> 8
+      # Hash64('b') -> 5795986006276551370 -> mod 10 -> 0
+      # Hash64('c') -> 14899841994519054197 -> mod 10 -> 7
+      self.assertAllEqual([8, 0, 7], result)
+
+
+if __name__ == '__main__':
+  tf.test.main()