Rename pyasn1 unicode exceptions

The new exception classes names are `PyAsn1UnicodeDecodeError`
and `PyAsn1UnicodeEncodeError`.

Also, unit tests added.

1 files changed, 28 insertions, 1 deletions

diff --git a/tests/type/test_univ.py b/tests/type/test_univ.py
index 3cd125b..169b73e 100644
--- a/tests/type/test_univ.py
+++ b/tests/type/test_univ.py
@@ -22,8 +22,9 @@ from pyasn1.type import constraint
 from pyasn1.type import namedtype
 from pyasn1.type import namedval
 from pyasn1.type import error
-from pyasn1.compat.octets import str2octs, ints2octs, octs2ints
+from pyasn1.compat.octets import str2octs, ints2octs, octs2ints, octs2str
 from pyasn1.error import PyAsn1Error
+from pyasn1.error import PyAsn1UnicodeEncodeError, PyAsn1UnicodeDecodeError
 
 
 class NoValueTestCase(BaseTestCase):
@@ -543,6 +544,32 @@ class OctetStringWithAsciiTestCase(OctetStringWithUnicodeMixIn, BaseTestCase):
     encoding = 'us-ascii'
 
 
+class OctetStringUnicodeErrorTestCase(BaseTestCase):
+    def testEncodeError(self):
+        text = octs2str(ints2octs((0xff, 0xfe)))
+
+        try:
+            univ.OctetString(text, encoding='us-ascii')
+
+        except PyAsn1UnicodeEncodeError:
+            pass
+
+        else:
+            assert False, 'Unicode encoding error not caught'
+
+    def testDecodeError(self):
+        serialized = ints2octs((0xff, 0xfe))
+
+        try:
+            str(univ.OctetString(serialized, encoding='us-ascii'))
+
+        except PyAsn1UnicodeDecodeError:
+            pass
+
+        else:
+            assert False, 'Unicode decoding error not caught'
+
+
 class OctetStringWithUtf8TestCase(OctetStringWithUnicodeMixIn, BaseTestCase):
     initializer = (208, 176, 208, 177, 208, 178)
     encoding = 'utf-8'