Add some unit tests for mgetOrPut and hasKeyOrPut.
Add some unit tests for mgetOrPut and hasKeyOrPut.

haiodo/Nim,jsanjuas/Nim,fmamud/Nim,judofyr/Nim,reactormonk/nim,Matt14916/Nim,sarvex/Nim-lang,msmith491/Nim,reactormonk/nim,msmith491/Nim,endragor/Nim,sferik/Nim,kirbyfan64/Nim,jsanjuas/Nim,nimLuckyBull/Nim,sarvex/Nim-lang,douglas-larocca/Nim,Salafit/Nim,zachaysan/Nim,tmm1/Nim,mbaulch/Nim,douglas-larocca/Nim,Matt14916/Nim,zachaysan/Nim,jsanjuas/Nim,SSPkrolik/Nim,bvssvni/Nim,BlaXpirit/nim,russpowers/Nim,russpowers/Nim,msmith491/Nim,tulayang/Nim,fredericksilva/Nim,xland/Nim,sarvex/Nim-lang,Dhertz/Nim,Senketsu/Nim,endragor/Nim,tmm1/Nim,nafsaka/Nim,douglas-larocca/Nim,dom96/Nim,Salafit/Nim,kirbyfan64/Nim,MrJohz/Nim,nimLuckyBull/Nim,singularperturbation/Nim,dom96/Nim,mbaulch/Nim,Matt14916/Nim,douglas-larocca/Nim,gokr/Nim,reactormonk/nim,nafsaka/Nim,fmamud/Nim,JCavallo/Nim,BlaXpirit/nim,mbaulch/Nim,kirbyfan64/Nim,xland/Nim,jsanjuas/Nim,SSPkrolik/Nim,jfhg/Nim,tulayang/Nim,gokr/Nim,nafsaka/Nim,SSPkrolik/Nim,haiodo/Nim,fredericksilva/Nim,SSPkrolik/Nim,gokr/Nim,dom96/Nim,Dhertz/Nim,endragor/Nim,sferik/Nim,Dhertz/Nim,fmamud/Nim,Senketsu/Nim,nimLuckyBull/Nim,sarvex/Nim-lang,xland/Nim,nimLuckyBull/Nim,nanoant/Nim,Senketsu/Nim,russpowers/Nim,nafsaka/Nim,singularperturbation/Nim,reactormonk/nim,zachaysan/Nim,Matt14916/Nim,judofyr/Nim,jsanjuas/Nim,haiodo/Nim,sarvex/Nim-lang,endragor/Nim,judofyr/Nim,jfhg/Nim,jsanjuas/Nim,endragor/Nim,msmith491/Nim,singularperturbation/Nim,sferik/Nim,tulayang/Nim,MrJohz/Nim,jfhg/Nim,reactormonk/nim,kirbyfan64/Nim,xland/Nim,Matt14916/Nim,mbaulch/Nim,nafsaka/Nim,judofyr/Nim,kirbyfan64/Nim,fredericksilva/Nim,fmamud/Nim,Dhertz/Nim,greyanubis/Nim,greyanubis/Nim,Salafit/Nim,SSPkrolik/Nim,douglas-larocca/Nim,judofyr/Nim,singularperturbation/Nim,fredericksilva/Nim,SSPkrolik/Nim,Dhertz/Nim,bvssvni/Nim,gokr/Nim,Senketsu/Nim,fmamud/Nim,reactormonk/nim,singularperturbation/Nim,gokr/Nim,dom96/Nim,nanoant/Nim,mbaulch/Nim,BlaXpirit/nim,zachaysan/Nim,fredericksilva/Nim,nanoant/Nim,fredericksilva/Nim,tmm1/Nim,BlaXpirit/nim,BlaXpirit/nim,reactormonk/nim,SSPkrolik/Nim,BlaXpirit/nim,MrJohz/Nim,Salafit/Nim,bvssvni/Nim,msmith491/Nim,singularperturbation/Nim,gokr/Nim,MrJohz/Nim,fredericksilva/Nim,MrJohz/Nim,reactormonk/nim,Senketsu/Nim,jfhg/Nim,Senketsu/Nim,MrJohz/Nim,haiodo/Nim,nimLuckyBull/Nim,sarvex/Nim-lang,tulayang/Nim,SSPkrolik/Nim,dom96/Nim,greyanubis/Nim,tmm1/Nim,Salafit/Nim,jfhg/Nim,bvssvni/Nim,mbaulch/Nim,bvssvni/Nim,jsanjuas/Nim,nafsaka/Nim,xland/Nim,nimLuckyBull/Nim,Matt14916/Nim,haiodo/Nim,JCavallo/Nim,bvssvni/Nim,nafsaka/Nim,tmm1/Nim,judofyr/Nim,douglas-larocca/Nim,russpowers/Nim,judofyr/Nim,jfhg/Nim,sferik/Nim,MrJohz/Nim,douglas-larocca/Nim,kirbyfan64/Nim,haiodo/Nim,greyanubis/Nim,Salafit/Nim,sferik/Nim,singularperturbation/Nim,judofyr/Nim,kirbyfan64/Nim,russpowers/Nim,zachaysan/Nim,sferik/Nim,Senketsu/Nim,greyanubis/Nim,zachaysan/Nim,mbaulch/Nim,BlaXpirit/nim,JCavallo/Nim,zachaysan/Nim,sferik/Nim,nanoant/Nim,endragor/Nim,tmm1/Nim,sarvex/Nim-lang,haiodo/Nim,Matt14916/Nim,endragor/Nim,fmamud/Nim,nanoant/Nim,fredericksilva/Nim,sferik/Nim,JCavallo/Nim,gokr/Nim,msmith491/Nim,kirbyfan64/Nim,tulayang/Nim,Dhertz/Nim,Salafit/Nim,greyanubis/Nim,xland/Nim,JCavallo/Nim,nanoant/Nim,tmm1/Nim,dom96/Nim,russpowers/Nim,gokr/Nim,nanoant/Nim,fmamud/Nim,JCavallo/Nim,BlaXpirit/nim,Dhertz/Nim,tulayang/Nim,nimLuckyBull/Nim,russpowers/Nim,JCavallo/Nim,msmith491/Nim,bvssvni/Nim,douglas-larocca/Nim,greyanubis/Nim,jfhg/Nim,xland/Nim,dom96/Nim