[svn r38208] make test safer against race conditiation (dist testing)
[svn r38208] make test safer against race conditiation (dist testing)

--HG--
branch : trunk

RonnyPfannschmidt/pytest,mhils/pytest,doordash/pytest,oleg-alexandrov/pytest,codewarrior0/pytest,rouge8/pytest,chillbear/pytest,MichaelAquilina/pytest,hunse/pytest,rmfitzpatrick/pytest,Magicjarvis/py,nicoddemus/pytest,jb098/pytest,nicoddemus/pytest,omarkohl/pytest,untitaker/pytest,takluyver/pytest,hpk42/pytest,rouge8/pytest,pytest-dev/pytest,takluyver/pytest,mhils/pytest,ionelmc/pytest,wfxiang08/pytest,doordash/pytest,JonathonSonesen/pytest,JonathonSonesen/pytest,chiller/pytest,ddboline/pytest,gabrielcnr/pytest,icemac/pytest,oleg-alexandrov/pytest,hunse/pytest,The-Compiler/pytest,mbirtwell/pytest,bukzor/pytest,etataurov/pytest,Carreau/pytest,markshao/pytest,vmalloc/dessert,mdboom/pytest,icemac/pytest,Carreau/pytest,gabrielcnr/pytest,mbirtwell/pytest,ropez/pytest,Bjwebb/pytest,inirudebwoy/pytest,ghostsquad/pytest,nicoddemus/repo-test,untitaker/pytest,MengJueM/pytest,ghostsquad/pytest,abusalimov/pytest,codewarrior0/pytest,ropez/pytest,wfxiang08/pytest,pelme/pytest,hackebrot/pytest,userzimmermann/pytest,tareqalayan/pytest,alfredodeza/pytest,Bachmann1234/pytest,pfctdayelise/pytest,tomviner/pytest,omarkohl/pytest,pelme/pytest,ericdill/pytest,userzimmermann/pytest,ericdill/pytest,abusalimov/pytest,skylarjhdownes/pytest,flub/pytest,tomviner/pytest,jaraco/pytest,lukas-bednar/pytest,bubenkoff/pytest,pytest-dev/py,chillbear/pytest,Bjwebb/pytest,chiller/pytest,ionelmc/pytest,bubenkoff/pytest,Akasurde/pytest,The-Compiler/pytest,tgoodlet/pytest,bukzor/pytest,jb098/pytest,malinoff/pytest,ojake/pytest,mdboom/pytest,Haibo-Wang-ORG/pytest,ojake/pytest,MengJueM/pytest,davidszotten/pytest,vodik/pytest,Bachmann1234/pytest,vodik/pytest,hpk42/pytest,txomon/pytest,Haibo-Wang-ORG/pytest,lukas-bednar/pytest,eli-b/pytest,inirudebwoy/pytest,nicoddemus/repo-test