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Smoke testing

Smoke testing. Gediminas Rimša. Origin of the Term. Used in the plumbing industry since 1875 . Smoke testing ( Software ). aka Build Acceptance Testing P reliminary testing to detect simple failures severe enough to reject a prospective software release

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Smoke testing

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  1. Smoke testing Gediminas Rimša

  2. OriginoftheTerm • Usedintheplumbing industrysince1875.

  3. Smoketesting (Software) • akaBuildAcceptanceTesting • Preliminarytesting to detectsimple failures severe enough to reject a prospective software release • Allows to quicklyrejectthebuilddue to obviousdefectsbefore testing it morethoroughly

  4. Smoketestfeatures • Intendedto preventcatastrophicfailures • Testsmostcriticalfunctionality • Automatablenature • Cheap • Fast

  5. Smoketestcategories • Unittests • Testsindividualfunctions/methods • Runaspartofthebuildassemblyprocess • Functionaltests • Testsapplicationas a whole • Runonnewlyassembledbuild

  6. Common(?) scenario • Noautomatictests • Noresourcesdedicated to writingtests • Need to improvesoftwarequality

  7. Possiblestrategy • Write a fewunittests to covermostcriticalfunctions/methods • Basicfunctionaltests (webapplication): • Doestheapplicationstart? • Doallwebpages loadwithouterrors? • Docorefeatures (e.g. login) work?

  8. Functionalsmoketests: Tools • Simpleshellscripts (curl/wget)- Testing pageoutput / ifthepageloads at all • Specializedweb testing tools, e.g. Selenium- Testing morecomplexfeatures

  9. curloutput >> curl -IsLmif.vu.lt HTTP/1.1 302 Found Date: Wed, 20 Nov 2013 22:02:21 GMT Server: Apache/2.2.16 (Debian) Location: http://mif.vu.lt/lt2/ Vary: Accept-Encoding Content-Type:text/html; charset=iso-8859-1 HTTP/1.1 200 OK Date: Wed, 20 Nov 2013 22:02:21 GMT Server: Zope/(2.13.10, python 2.6.7, linux2) ZServer/1.1 Content-Length: 701 Accept-Ranges:none Last-Modified:Wed, 20 Nov 2013 22:02:21 GMT Content-Type:text/html Vary: Accept-Encoding

  10. Quicktestexample function test { res=`curl -s -o /dev/null -I -L -w %{http_code} $1` if [ $res -ne 200 ] then echo "Error: $res on $1" fi } test mif.vu.lt test http://mif.vu.lt/lt2/apie-mif-does-not-exist test http://mif.vu.lt/lt2/apie-mif Output: Error 404 on http://mif.vu.lt/lt2/apie-mif-does-not-exist

  11. Integrateswellwithbuildprocess • Rununittests • Assemblewebapplication • Deployapplication • Runfunctionalsmoketests

  12. Expectedoutcome • Timespent: a fewdays at most • A reliablewayto ensurethatapplication at leastsomewhatworks • Solidbase forgraduallydevelopingmoreand/ormoreelaborateautomatedunit/functionaltests

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