rxTest({
  if (!.Call(`_rxode2_isIntel`)) {
    test_that("tests the internal df repetition routines", {
      expect_equal(
        .vecDf(c(a = 1, b = 1, c = 3), 3),
        structure(list(
          a = c(1, 1, 1),
          b = c(1, 1, 1),
          c = c(3, 3, 3)
        ),
        row.names = c(NA, -3L),
        class = "data.frame"
        )
      )
      expect_error(.vecDf(c(a = 1, b = 1, c = 3), 0))

      d <- 4

      rxWithSeed(
        42,
        matL <- lapply(1:4, function(...) {
          tmp <- matrix(rnorm(d^2), d, d)
          tcrossprod(tmp, tmp)
        })
      )

      theta <- data.frame(
        a = as.double(1:4), b = as.double(5:8),
        c = as.double(9:12)
      )

      omega <- rxRmvn(4, setNames(1:d, paste0("a", 1:d)), matL)

      expand <- .cbindOme(theta, omega, 4)

      expect_equal(expand$a, rep(theta$a, each = 4))
      expect_equal(expand$b, rep(theta$b, each = 4))
      expect_equal(expand$c, rep(theta$c, each = 4))

      expect_equal(expand$a1, omega[, "a1"])
      expect_equal(expand$a2, omega[, "a2"])
      expect_equal(expand$a3, omega[, "a3"])
      expect_equal(expand$a4, omega[, "a4"])

      expand2 <- .cbindOme(theta, NULL, 4)

      expect_equal(expand2$a, expand$a)
      expect_equal(expand2$b, expand$b)
      expect_equal(expand2$c, expand$c)

      expand3 <- .cbindOme(NULL, omega, 4)

      expect_equal(expand3$a1, expand$a1)
      expect_equal(expand3$b1, expand$b1)
      expect_equal(expand3$c1, expand$c1)
    })
  }
})