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diff --git a/tests/test_scrypt_py3x.py b/tests/test_scrypt_py3x.py
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+++ b/tests/test_scrypt_py3x.py
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+# -*- coding: utf-8 -*-
+
+from sys import version_info
+
+if ((version_info > (3, 2, 0, 'final', 0)) or
+    (version_info > (2, 7, 0, 'final', 0) and version_info < (3, 0, 0, 'final', 0))):
+    import unittest as testm
+else:
+    try:
+        import unittest2 as testm
+    except ImportError:
+        print("Please install unittest2 to run the test suite")
+        exit(-1)
+
+import scrypt
+
+
+@testm.skipIf(version_info < (3, 0, 0, 'final', 0), "Tests for Python 3 only")
+class TestScryptForPy3(testm.TestCase):
+
+    def setUp(self):
+        self.input = "message"
+        self.password = "password"
+        self.byte_text = b'\xe1\x93\x84\xe1\x93\x87\xe1\x95\x97\xe1\x92\xbb\xe1\x92\xa5\xe1\x90\x85\xe1\x91\xa6'
+        self.unicode_text = self.byte_text.decode('utf-8', "strict")
+
+    def test_py3_encrypt_allows_bytes_input(self):
+        """Test Py3 encrypt allows unicode input"""
+        s = scrypt.encrypt(self.byte_text, self.password, 0.1)
+        m = scrypt.decrypt(s, self.password)
+        self.assertEqual(bytes(m.encode("utf-8")), self.byte_text)
+
+    def test_py3_encrypt_allows_bytes_password(self):
+        """Test Py3 encrypt allows unicode password"""
+        s = scrypt.encrypt(self.input, self.byte_text, 0.1)
+        m = scrypt.decrypt(s, self.byte_text)
+        self.assertEqual(m, self.input)
+
+    def test_py3_encrypt_returns_bytes(self):
+        """Test Py3 encrypt return bytes"""
+        s = scrypt.encrypt(self.input, self.password, 0.1)
+        self.assertTrue(isinstance(s, bytes))
+
+    def test_py3_decrypt_returns_unicode_string(self):
+        """Test Py3 decrypt returns Unicode UTF-8 string"""
+        s = scrypt.encrypt(self.input, self.password, 0.1)
+        m = scrypt.decrypt(s, self.password)
+        self.assertTrue(isinstance(m, str))
+
+    def test_py3_hash_returns_bytes(self):
+        """Test Py3 hash return bytes"""
+        h = scrypt.hash(self.input, self.password)
+        self.assertTrue(isinstance(h, bytes))
+
+if __name__ == "__main__":
+    testm.main()