tests/testthat/test-mtime.R

In nlmixr2/rxode2: Facilities for Simulating from ODE-Based Models

rxTest({
  if (!.Call(`_rxode2_isIntel`)) {
    mod <- rxode2({
      ka <- 0.04
      kel <- 0.6
      mt1 <- 0.04
      mt2 <- 0.6
      mtime(t1) <- mt1
      mtime(t2) <- mt2
      if (t >= t1) {
        ka <- 0.4
      }
      if (t >= t2) {
        ka <- 4
      }
      d / dt(intestine) <- -ka * intestine
      d / dt(blood) <- ka * intestine - kel * blood
    })

    et <- eventTable() %>%
      add.dosing(dose = 3, nbr.doses = 1) %>%
      add.sampling(0:48)


    test_that("Solved model contains the model times", {
      s <- solve(mod, et)
      expect_true(any(s$time == 0.04))
      expect_true(any(s$time == 0.6))
      expect_false(any(s$time == 1.977))
      expect_false(any(s$time == 10.99))
      s <- solve(mod, et, c(mt1 = 1.977, mt2 = 10.09))
      expect_true(any(s$time == 1.977))
      expect_true(any(s$time == 10.09))
      expect_false(any(s$time == 0.04))
      expect_false(any(s$time == 0.6))
    })
  }
})