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Viewing changes to tests/suite/base/t/bug_35729-test.lua

  • Committer: Kay Roepke
  • Author(s): Jan Kneschke
  • Date: 2008-01-23 22:00:28 UTC
  • Revision ID: kay@mysql.com-20080123220028-hq2xqb69apa75fnx
first round on mysql-shell based on the proxy code

this is mostly a verification if the proxy-code is flexible enough to handle 
all three scenarios of: client, server and forwarding (proxy)

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tests/suite/base/t/bug_35729-test.lua
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---
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--
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--
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---
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function read_query( packet )
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        if packet:byte() == proxy.COM_QUERY then
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                proxy.queries:append(1, packet, { resultset_is_needed = true } )
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                return proxy.PROXY_SEND_QUERY
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        end
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end
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---
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--
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--
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function read_query_result(inj)
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        local fields = inj.resultset.fields
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        collectgarbage("collect") -- trigger a full GC
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        assert(type(fields) == "userdata")
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        assert(type(fields[1]) == "userdata") -- if the GC removed the underlying c-struct, fields[1] will be nil 
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        proxy.response = {
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                type = proxy.MYSQLD_PACKET_OK,
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                resultset = {
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                        fields = { },
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                        rows = { }
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                }
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        }
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        proxy.response.resultset.fields[1] = {
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                name = fields[1].name, type = fields[1].type
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        }
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        proxy.response.resultset.fields[2] = {
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                name = fields[2].name, type = fields[2].type
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        }
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        for row in inj.resultset.rows do
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                collectgarbage("collect") -- trigger a full GC
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                ---
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                -- if something goes wrong 'row' will reference a free()ed old resultset now
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                -- leading to nil here
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                proxy.response.resultset.rows[#proxy.response.resultset.rows + 1] = { row[1], row[2] }
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        end
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        return proxy.PROXY_SEND_RESULT
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end