nmTest({
  test_that("eta fixed saem", {
    one.cmt <- function() {
      ini({
        ## You may label each parameter with a comment
        tka <- 0.45 # Ka
        tcl <- log(c(0, 2.7, 100)) # Log Cl
        ## This works with interactive models
        ## You may also label the preceding line with label("label text")
        tv <- 3.45; label("log V")
        ## the label("Label name") works with all models
        eta.ka ~ fix(0.6)
        eta.cl ~ 0.3
        eta.v ~ 0.1
        add.sd <- 0.7
      })
      model({
        ka <- exp(tka + eta.ka)
        cl <- exp(tcl + eta.cl)
        v <- exp(tv + eta.v)
        linCmt() ~ add(add.sd)
      })
    }
    
    f <- nlmixr(one.cmt, nlmixr2data::theo_sd, "saem")
    expect_equal(names(f$eta),
                 c("ID", "eta.ka", "eta.cl", "eta.v"))
    expect_equal(names(f$parHist),
                 c("iter", "tka", "tcl", "tv", "V(eta.cl)", "V(eta.v)", "add.sd"))
  })
})