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 Mon, 16 Nov 2020 17:00:09 +0300 (MSK)
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From: Sergey Bronnikov <sergeyb@tarantool.org>
Message-ID: <47897821-0f33-b0b4-8340-f670e08261d6@tarantool.org>
Date: Mon, 16 Nov 2020 17:00:08 +0300
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Subject: Re: [Tarantool-patches] [PATCH 2/3 v2] replication: add test with
 random leaders promotion and demotion
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To: tarantool-patches@dev.tarantool.org, Serge Petrenko <sergepetrenko@tarantool.org>, Vladislav Shpilevoy <v.shpilevoy@tarantool.org>


On 16.11.2020 12:10, Sergey Bronnikov wrote:
>
>  test_run:switch('qsync1')
> -box.space.sync:count() -- 300
> +box.space.sync:count() -- 200
>
sometimes this statement failed with:

[007] replication/qsync_random_leader.test.lua memtx           [ fail ]
[007]
[007] Test failed! Result content mismatch:
[007] --- replication/qsync_random_leader.result        Mon Nov 16 
08:41:46 2020
[007] +++ 
/home/s.bronnikov/work/tarantool/build/test/var/rejects/replication/qsync_random_leader.reject 
Mon Nov 16 09:57:34 2020
[007] @@ -128,7 +128,7 @@
[007]   | ...
[007]  box.space.sync:count() -- 200
[007]   | ---
[007] - | - 200
[007] + | - 199
[007]   | ...
[007]
[007]  -- Teardown.

so I replace it with wait_cond():

--- a/test/replication/qsync_random_leader.test.lua
+++ b/test/replication/qsync_random_leader.test.lua
@@ -63,8 +63,8 @@ for i=1,200 do \
      current_leader_id = 
new_leader_id                                          \
  end

-test_run:switch('qsync1')
-box.space.sync:count() -- 200
+test_run:wait_cond(function() return test_run:eval('qsync1', \
+                   ("box.space.sync:count()")) == 200 end)  \

  -- Teardown.
  test_run:switch('default')