R Under development (unstable) (2024-09-06 r87103 ucrt) -- "Unsuffered Consequences"
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> library(pcalg)
> suppressWarnings(RNGversion("3.5.0"))
> set.seed(42)
> 
> ## wmat_ij is edge from j to i
> g <- randomDAG(3,0.4)
> wmat <- wgtMatrix(g)
> if (!(wmat[2,1]!=0 & wmat[1,2]==0 & wmat[3,1]!=0 & wmat[3,2]==0)) {
+   stop("Test of wgtMatrix: Something with orientation of edges is wrong!")
+ }
> 
> ## test weird parameters
> g <- randomDAG(3,0)
> wmat <- wgtMatrix(g)
> if (!all(wmat==matrix(0,3,3))) {
+   stop("Test of wgtMatrix: Problem when used on empty graph!")
+ }
> 
> ## test if weight parameters are correct
> set.seed(34)
> g <- randomDAG(5,0.8)
> trMat <- matrix(0, 5,5)
> trMat[1,5] <- 0.305
> trMat[1,4] <- 0.863
> trMat[1,2] <- 0.354
> trMat[2,4] <- 0.392
> trMat[2,5] <- 0.495
> trMat[3,4] <- 0.278
> 
> if (!all(round(wgtMatrix(g),3) == t(trMat))) {
+   stop("Test in wgtMatrix: Weights have wrong value!")
+ }
> 
> proc.time()
   user  system elapsed 
   0.85    0.09    0.95