R Under development (unstable) (2024-07-18 r86905 ucrt) -- "Unsuffered Consequences"
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> ## test checks and settings
> 
> library("cotram")
Loading required package: tram
Loading required package: mlt
Loading required package: basefun
Loading required package: variables
Loading required package: mvtnorm
> set.seed(25)
> 
> y <- 0L:100L
> x <- runif(length(y))
> 
> yp1 <- y + 1L
> d <- data.frame(y = y, x = x)
> 
> m <- cotram(y ~ x, log_first = TRUE)
Model was fitted to log(y + 1).
> 
> mm <- cotram(y ~ x, log_first = FALSE)
> 
> ## ---- checks for y > 0 and y %% 1 == 0 ----
> 
> ## quick check that it returns a error for non-positive & non-integers
> .check_error <- function(expr) stopifnot(class(try(expr)) == "try-error")
> 
> ## negative y
> ym <- -y
> .check_error(cotram(ym ~ x))
Error in cotram(ym ~ x) : response is non-positive
> 
> ## non-integer y
> yn <- y/2
> .check_error(cotram(yn ~ x))
Error in cotram(yn ~ x) : response is non-integer
> 
> .check_error(logLik(mm, newdata = data.frame(y = ym, x = x)))
Error in logLik.cotram(mm, newdata = data.frame(y = ym, x = x)) : 
  response is non-positive
> .check_error(logLik(mm, newdata = data.frame(y = yn, x = x)))
Error in logLik.cotram(mm, newdata = data.frame(y = yn, x = x)) : 
  response is non-integer
> 
> .check_error(predict(mm, newdata = data.frame(y = ym, x = x)))
Error in predict.cotram(mm, newdata = data.frame(y = ym, x = x)) : 
  response is non-positive
> .check_error(predict(mm, newdata = data.frame(y = yn, x = x)))
Error in predict.cotram(mm, newdata = data.frame(y = yn, x = x)) : 
  response is non-integer
> 
> .check_error(plot(mm, newdata = data.frame(y = ym, x = x)))
Error in predict.cotram(x, newdata = newdata, type = type, q = q, smooth = smooth,  : 
  response is non-positive
> .check_error(plot(mm, newdata = data.frame(y = yn, x = x)))
Error in predict.cotram(x, newdata = newdata, type = type, q = q, smooth = smooth,  : 
  response is non-integer
> 
> .check_error(confband(mm, q = ym, newdata = model.frame(mm)))
Error in confband.cotram(object = object, newdata = newdata[i, , drop = FALSE],  : 
  q is non-positive
> .check_error(confband(mm, q = yn, newdata = model.frame(mm)))
Error in confband.cotram(object = object, newdata = newdata[i, , drop = FALSE],  : 
  q is non-integer
> 
> .check_error(plot(mm, q = ym, newdata = model.frame(mm)))
Error in predict.cotram(x, newdata = newdata, type = type, q = q, smooth = smooth,  : 
  q is non-positive
> .check_error(plot(mm, q = yn, newdata = model.frame(mm)))
Error in predict.cotram(x, newdata = newdata, type = type, q = q, smooth = smooth,  : 
  q is non-integer
> 
> proc.time()
   user  system elapsed 
   1.46    0.34    1.81