Test for array serialization and deserialzation

Author: tbartelmess

tests/test_codecs.py

@@ -1058,6 +1058,10 @@ async def test_enum_in_array(self):
         await self.con.execute('''
             CREATE TYPE enum_t AS ENUM ('abc', 'def', 'ghi');
         ''')
+        result = await self.con.fetchrow('''SELECT $1::enum_t[];''',
+                                         ['abc'])
+        self.assertEqual(result, ['abc'])
+
         result = await self.con.fetchrow('''SELECT ARRAY[$1::enum_t];''',
                                          'abc')