Add test for pipeline.transaction(value_from_callable=True)

CHANGES

@@ -13,7 +13,7 @@
     * Client instances and Connection pools now support a 'client_name'
       argument. If supplied, all connections created will call CLIENT SETNAME
       as soon as the connection is opened. Thanks to @Habbie for supplying
-      the basis of this chanfge. #802
+      the basis of this change. #802
     * Added the 'ssl_check_hostname' argument to specify whether SSL
       connections should require the server hostname to match the hostname
       specified in the SSL cert. By default 'ssl_check_hostname' is False

tests/test_pipeline.py

@@ -242,6 +242,14 @@ def my_transaction(pipe):
         assert result == [True]
         assert r['c'] == b'4'
 
+    def test_transaction_callable_returns_value_from_callable(self, r):
+        def callback(pipe):
+            # No need to do anything here since we only want the return value
+            return 'a'
+
+        res = r.transaction(callback, 'my-key', value_from_callable=True)
+        assert res == 'a'
+
     def test_exec_error_in_no_transaction_pipeline(self, r):
         r['a'] = 1
         with r.pipeline(transaction=False) as pipe: