diff --git a/tests/test_x509_ext.py b/tests/test_x509_ext.py
index 06adaa3..e6ee7d6 100644
--- a/tests/test_x509_ext.py
+++ b/tests/test_x509_ext.py
@@ -1147,6 +1147,55 @@
         assert gn != object()
 
 
+class TestOtherName(object):
+    def test_invalid_args(self):
+        with pytest.raises(TypeError):
+            x509.OtherName(b"notanobjectidentifier", b"derdata")
+
+        with pytest.raises(TypeError):
+            x509.OtherName(x509.ObjectIdentifier("1.2.3.4"), u"notderdata")
+
+    def test_repr(self):
+        gn = x509.OtherName(x509.ObjectIdentifier("1.2.3.4"), b"derdata")
+        if six.PY3:
+            assert repr(gn) == (
+                "<OtherName(type_id=<ObjectIdentifier(oid=1.2.3.4, "
+                "name=Unknown OID)>, value=b'derdata')>"
+            )
+        else:
+            assert repr(gn) == (
+                "<OtherName(type_id=<ObjectIdentifier(oid=1.2.3.4, "
+                "name=Unknown OID)>, value='derdata')>"
+            )
+
+        gn = x509.OtherName(x509.ObjectIdentifier("2.5.4.65"), b"derdata")
+        if six.PY3:
+            assert repr(gn) == (
+                "<OtherName(type_id=<ObjectIdentifier(oid=2.5.4.65, "
+                "name=pseudonym)>, value=b'derdata')>"
+            )
+        else:
+            assert repr(gn) == (
+                "<OtherName(type_id=<ObjectIdentifier(oid=2.5.4.65, "
+                "name=pseudonym)>, value='derdata')>"
+            )
+
+    def test_eq(self):
+        gn = x509.OtherName(x509.ObjectIdentifier("1.2.3.4"), b"derdata")
+        gn2 = x509.OtherName(x509.ObjectIdentifier("1.2.3.4"), b"derdata")
+        assert gn == gn2
+
+    def test_ne(self):
+        gn = x509.OtherName(x509.ObjectIdentifier("1.2.3.4"), b"derdata")
+        assert gn != object()
+
+        gn2 = x509.OtherName(x509.ObjectIdentifier("1.2.3.4"), b"derdata2")
+        assert gn != gn2
+
+        gn2 = x509.OtherName(x509.ObjectIdentifier("1.2.3.5"), b"derdata")
+        assert gn != gn2
+
+
 class TestGeneralNames(object):
     def test_get_values_for_type(self):
         gns = x509.GeneralNames(