[testing] updated tests wrt normalization
[testing] updated tests wrt normalization

befelix/GPy,AlexGrig/GPy,maaskola/GPy,AlexGrig/GPy,avehtari/GPy,ptonner/GPy,dhhjx880713/GPy,buntyke/GPy,buntyke/GPy,mikecroucher/GPy,SheffieldML/GPy,esiivola/GPYgradients,ptonner/GPy,dhhjx880713/GPy,jameshensman/GPy,PredictiveScienceLab/GPy,mikecroucher/GPy,befelix/GPy,PredictiveScienceLab/GPy,befelix/GPy,dhhjx880713/GPy,maaskola/GPy,beckdaniel/GPy,gusmaogabriels/GPy,jameshensman/GPy,avehtari/GPy,AlexGrig/GPy,PredictiveScienceLab/GPy,mikecroucher/GPy,Dapid/GPy,fivejjs/GPy,Dapid/GPy,gusmaogabriels/GPy,strongh/GPy,SheffieldML/GPy,buntyke/GPy,ysekky/GPy,ptonner/GPy,PredictiveScienceLab/GPy,SheffieldML/GPy,jameshensman/GPy,befelix/GPy,SheffieldML/GPy,mikecroucher/GPy,ysekky/GPy,beckdaniel/GPy,maaskola/GPy,beckdaniel/GPy,ysekky/GPy,dhhjx880713/GPy,beckdaniel/GPy,avehtari/GPy,strongh/GPy,ptonner/GPy,avehtari/GPy,fivejjs/GPy,Dapid/GPy,esiivola/GPYgradients,buntyke/GPy,esiivola/GPYgradients,ysekky/GPy,TianpeiLuke/GPy,TianpeiLuke/GPy,Dapid/GPy,fivejjs/GPy,AlexGrig/GPy,strongh/GPy,esiivola/GPYgradients,maaskola/GPy,TianpeiLuke/GPy,jameshensman/GPy,gusmaogabriels/GPy