## ---- test-simStateSpace-sim-ssm-0-fixed
lapply(
  X = 1,
  FUN = function(i,
                 text) {
    message(text)
    # prepare parameters
    set.seed(42)
    k <- p <- 3
    iden <- diag(k)
    iden_sqrt <- chol(iden)
    null_vec <- rep(x = 0, times = k)
    n <- 5
    mu0 <- null_vec
    sigma0_sqrt <- iden_sqrt
    alpha <- null_vec
    beta <- diag(x = 0.50, nrow = k)
    psi_sqrt <- iden_sqrt
    nu <- null_vec
    lambda <- iden
    theta_sqrt <- chol(diag(x = 0.50, nrow = k))
    time <- 50
    burn_in <- 10

    ssm <- SimSSM0Fixed(
      n = n,
      mu0 = mu0,
      sigma0_sqrt = sigma0_sqrt,
      alpha = alpha,
      beta = beta,
      psi_sqrt = psi_sqrt,
      nu = nu,
      lambda = lambda,
      theta_sqrt = theta_sqrt,
      time = time,
      burn_in = burn_in
    )

    Sim2Matrix(ssm, eta = TRUE)
    Sim2Matrix(ssm, eta = FALSE)

    ssm <- SimSSM0(
      mu0 = mu0,
      sigma0_sqrt = sigma0_sqrt,
      alpha = alpha,
      beta = beta,
      psi_sqrt = psi_sqrt,
      nu = nu,
      lambda = lambda,
      theta_sqrt = theta_sqrt,
      time = time,
      burn_in = burn_in
    )

    Sim2Matrix(ssm, eta = TRUE)
    Sim2Matrix(ssm, eta = FALSE)
  },
  text = "test-simStateSpace-sim-ssm-0-fixed"
)