extend tuple tests to cover recent C code simplifications
extend tuple tests to cover recent C code simplifications

slonik-az/cython,marscher/cython,madjar/cython,JelleZijlstra/cython,fperez/cython,mcanthony/cython,roxyboy/cython,fperez/cython,hickford/cython,andreasvc/cython,dahebolangkuan/cython,cython/cython,ABcDexter/cython,mrGeen/cython,mrGeen/cython,ABcDexter/cython,ChristopherHogan/cython,c-blake/cython,slonik-az/cython,fabianrost84/cython,da-woods/cython,encukou/cython,scoder/cython,dahebolangkuan/cython,achernet/cython,mcanthony/cython,achernet/cython,hickford/cython,roxyboy/cython,hhsprings/cython,encukou/cython,dahebolangkuan/cython,dahebolangkuan/cython,madjar/cython,acrispin/cython,fabianrost84/cython,hhsprings/cython,mrGeen/cython,marscher/cython,hickford/cython,madjar/cython,acrispin/cython,cython/cython,encukou/cython,encukou/cython,andreasvc/cython,ChristopherHogan/cython,slonik-az/cython,c-blake/cython,achernet/cython,cython/cython,roxyboy/cython,da-woods/cython,ABcDexter/cython,ChristopherHogan/cython,JelleZijlstra/cython,achernet/cython,ABcDexter/cython,slonik-az/cython,dahebolangkuan/cython,andreasvc/cython,madjar/cython,hhsprings/cython,achernet/cython,hickford/cython,da-woods/cython,fperez/cython,acrispin/cython,roxyboy/cython,andreasvc/cython,marscher/cython,scoder/cython,scoder/cython,mrGeen/cython,fabianrost84/cython,fabianrost84/cython,marscher/cython,mcanthony/cython,fabianrost84/cython,roxyboy/cython,da-woods/cython,hickford/cython,acrispin/cython,c-blake/cython,acrispin/cython,c-blake/cython,c-blake/cython,slonik-az/cython,ABcDexter/cython,madjar/cython,mcanthony/cython,andreasvc/cython,JelleZijlstra/cython,fperez/cython,JelleZijlstra/cython,fperez/cython,marscher/cython,JelleZijlstra/cython,mrGeen/cython,hhsprings/cython,scoder/cython,mcanthony/cython,hhsprings/cython,encukou/cython,cython/cython