cat(crayon::yellow("test aug_ZXy:\n"))
data("blackcap")
chk <- fitme(migStatus ~ 1+ Matern(1|latitude+longitude), fixed=list(lambda=2), data=blackcap)
if (how(chk, verbose=FALSE)$switches[["augZXy_cond"]]) stop("y-augmented method used with fixed lambda.")

#cat("\ntest no fixef, pw & REMLformula, by augZXy:\n")
if (FALSE) { # old tests of functionality. May be useful for later devels
  if(requireNamespace("lme4", quietly = TRUE)) { # but it's faster than that.)
    data("sleepstudy",package = "lme4")
    oldopt <- spaMM.options(allow_augZXy=FALSE)
    (fit <- fitme(Reaction ~ 0 + (1|Subject), data = sleepstudy))
    set.seed(123)
    sleepstudy$pw <- 1 + runif(180)
    (fit <- fitme(Reaction ~ 0 + (1|Subject), data = sleepstudy, prior.weights=pw))
    spaMM.options(allow_augZXy=2) # no longer quite effective ?
    (fit <- fitme(Reaction ~ 0 + (1|Subject), data = sleepstudy, prior.weights=pw))
    (fit <- fitme(Reaction ~ 0 + (1|Subject), data = sleepstudy, prior.weights=pw, REMLformula=Reaction ~ 1 + (1|Subject), method="REML"))
    spaMM.options(allow_augZXy=FALSE)
    (fit <- fitme(Reaction ~ 0 + (1|Subject), data = sleepstudy, prior.weights=pw, REMLformula=Reaction ~ 1 + (1|Subject), method="REML"))
    spaMM.options(oldopt) # spaMM.options(allow_augZXy=NULL)
    # works also with .HLfit_body_augZXy_W()
  }
}


if (file.exists((privdata <- "C:/home/francois/travail/stats/spaMMplus/spaMM/package/tests_private/all_fitness.txt"))) {
  my.data <- read.table(privdata, header = TRUE, sep = "\t",dec = ".")
  my.data$line <- factor(as.character(my.data$line))
  my.data <- na.omit(my.data)
  
  # Minimal example (small matrices) for testing ranCoefs code in general: 
  set.seed(666)
  perm <- sample(nrow(my.data))
  if (exists(".HLfit_body_augZXy_invL",envir = asNamespace("spaMM"))) { # actually spprec case...
    oldopt <- spaMM.options(augZXy_fitfn=".HLfit_body_augZXy_invL", check_alt_augZXy=FALSE) # F I X_invL no check_alt_augZXy bc it fails. But the final logLik is checked
    (mini_rC <- fitme(total_red ~ 1 + (sex|env), data = my.data[perm[1:20],], method="ML"))
    spaMM.options(oldopt)
  } else message(".HLfit_body_augZXy_invL() not included in build => test not performed on pckage istalled from build")
  
  # Plus an augZXy test (not ranCoefs):
  (vanilla <- fitme(total_red ~ sex*env + (1|rep) + (1|line), data = my.data, method="ML"))
  if (exists(".HLfit_body_augZXy_W",envir = asNamespace("spaMM"))) {
    oldopt <- spaMM.options(augZXy_fitfn=".HLfit_body_augZXy_W", check_alt_augZXy=TRUE) 
    essainola <- fitme(total_red ~ sex*env + (1|rep) + (1|line), data = my.data, method="ML")
    spaMM.options(oldopt)
    testthat::test_that("private .HLfit_body_augZXy_W() returns a correct result.",
                        testthat::expect_true((diff(range(logLik(vanilla),logLik(essainola)))<1e-8)) )
  } else message(".HLfit_body_augZXy_W() not included in build => test not performed on pckage istalled from build")
  if (exists(".HLfit_body_augZXy_invL",envir = asNamespace("spaMM"))) {
    oldopt <- spaMM.options(augZXy_fitfn=".HLfit_body_augZXy_invL", check_alt_augZXy=TRUE)
    essainola <- fitme(total_red ~ sex*env + (1|rep) + (1|line), data = my.data, method="ML")
    spaMM.options(oldopt)
    testthat::expect_true((diff(range(logLik(vanilla),logLik(essainola)))<1e-8)) 
  } else message(".HLfit_body_augZXy_invL() not included in build => test not performed on pckage istalled from build") # and it no longer exists... 
}