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Displaying posts with tag: Roel Van de Paar (reset)

The future of MySQL quality assurance: Introducing pquery
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Being a QA Engineer, how would you feel if you had access to a framework which can generate 80+ crashes – a mix of hitting developer introduced assertions (situations that should not happen), and serious unforeseen binary crashes – for the world’s most popular open source database software – each and ever hour? What if you could do this running on a medium spec machine – even a laptop?

The seniors amongst you may object “But… generating a crash or assertion is one thing – creating a repeatable testcase for the same is quite another.”

Introducing pquery, mtr_to_sql, reducer.sh (the pquery-enabled …

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Reducer.sh – A powerful MySQL test-case simplification/reducer tool
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Let me start by saying a big “thank you” to the staff at Oracle for deciding to open source reducer.sh. It’s a tool I developed whilst I was working for them several years ago. Its sole purpose is to do one thing – but do it good: test-case simplification.

So, let’s say some customer just sent you 120,000 lines of SQL code and affirms that “it definitely causes a crash.” Or maybe you ran RQG (the Random Query Generator) for awhile (with the general query log turned on) and now you have a nice SQL trace which may just lead to that crash the run resulted in. Or you’re a DBA testing the company’s usual …

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