Merge pull request #179 from stanhu/sh-add-unit-test-multi-exec

Add unit test/comment for multi/exec handling

Author: byroot

lib/redis_client/connection_mixin.rb

@@ -50,6 +50,9 @@ def call_pipelined(commands, timeouts)
         timeout = timeouts && timeouts[index]
         result = read(timeout)
         @pending_reads -= 1
+
+        # A multi/exec command can return an array of results.
+        # An error from a multi/exec command is handled in Multi#_coerce!.
         if result.is_a?(Error)
           result._set_command(commands[index])
           exception ||= result

test/shared/redis_client_tests.rb

@@ -278,13 +278,15 @@ def test_wrong_type
         pipeline.call("SISMEMBER", "str", "member")
       end
     end
+    assert_equal ["SISMEMBER", "str", "member"], error.command
     assert_includes error.message, "WRONGTYPE Operation against a key holding the wrong kind of value"
 
     error = assert_raises RedisClient::CommandError do
       @redis.multi do |transaction|
         transaction.call("SISMEMBER", "str", "member")
       end
     end
+    assert_equal ["SISMEMBER", "str", "member"], error.command
     assert_includes error.message, "WRONGTYPE Operation against a key holding the wrong kind of value"
   end