R Under development (unstable) (2024-09-15 r87152 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
>  Sys.setenv('OMP_THREAD_LIMIT'=2)
>  library(rlibkriging)

Attaching package: 'rlibkriging'

The following objects are masked from 'package:base':

    load, save

> 
> for (kernel in c("gauss","exp")) {
+ # kernel = "gauss"
+   context(paste0("Check LogLikelihood for kernel ",kernel))
+   
+   f <- function(X) apply(X, 1, function(x) prod(sin((x-.5)^2)))
+   n <- 10
+   set.seed(123)
+   X <- cbind(runif(n),runif(n),runif(n))
+   y <- f(X)
+   d = ncol(X)
+   
+ k = DiceKriging::km(design=X,response=y,covtype = kernel,control = list(trace=F))
+ ll = function(theta) DiceKriging::leaveOneOutFun(theta,k)
+ 
+ r <- Kriging(y, X, kernel)
+ ll2 = function(theta) leaveOneOutFun(r,theta)
+ 
+ precision <- 1e-8  # the following tests should work with it, since the computations are analytical
+ x=runif(d)
+ xenv=new.env()
+ test_that(desc="leaveOneOut is the same that DiceKriging one",
+          expect_equal(leaveOneOutFun(r,x)$leaveOneOut[1],DiceKriging::leaveOneOutFun(x,k,xenv),tolerance = precision))
+ 
+ test_that(desc="leaveOneOut Grad is the same that DiceKriging one",
+           expect_equal(t(leaveOneOutFun(r,x,return_grad=T)$leaveOneOutGrad),DiceKriging::leaveOneOutGrad(x,k,xenv),tolerance= precision))
+ }
Test passed 🥳
Test passed 🌈
Test passed 🥳
Test passed 🌈
> 
> proc.time()
   user  system elapsed 
   1.10    0.15    1.20