set.seed(1)
coords <- runif(8)
context("sanity check flex.test")
test_that("sanity checks for flex.test arguments", {
  expect_error(flex.test(coords))
  coords <- data.frame(x = runif(4), y = runif(4))
  cases <- 1:3
  expect_error(flex.test(coords, cases = cases))
  cases <- 1:4
  expect_error(flex.test(coords, cases = as.factor(cases)))
  pop <- list(1:3)
  expect_error(flex.test(coords, cases = cases, pop = pop))
  pop <- list(1:4)
  expect_error(flex.test(coords, cases = cases, pop = pop))
  pop <- 1:4
  expect_error(flex.test(coords, cases = cases, pop = factor(pop)))
  ex <- 1:3
  expect_error(flex.test(coords, cases = cases, pop = pop, ex = ex))
  ex <- 1:4
  alpha <- -1
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha
  ))
  alpha <- 1.1
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha
  ))
  alpha <- c(0.1, 0.3)
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha
  ))
  alpha <- 0.1
  nsim <- 0
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim
  ))
  nsim <- c(10, 20)
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim
  ))
  nsim <- 10
  k <- 0.5
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim,
    k = k
  ))
  k <- c(1, 2)
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim,
    k = k
  ))
  k <- 2
  longlat <- 1:2
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim,
    k = k, longlat = longlat
  ))
  longlat <- 1
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim,
    k = k, longlat = longlat
  ))
  longlat <- FALSE
  parallel <- 1:2
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim,
    k = k, longlat = longlat,
    parallel = parallel
  ))
  parallel <- 1
  expect_error(flex.test(coords,
    cases = cases, pop = pop,
    ex = ex, alpha = alpha, nsim = nsim,
    k = k, longlat = longlat,
    parallel = parallel
  ))
  parallel <- TRUE
  w <- 1:4
  expect_error(flex.test(coords, cases = cases, pop = pop, w = w))
  w <- matrix(1:4)
  expect_error(flex.test(coords, cases = cases, pop = pop, w = w))
  w <- diag(3)
  expect_error(flex.test(coords, cases = cases, pop = pop, w = w))
  w <- matrix(factor(diag(4)), nrow = 4)
  expect_error(flex.test(coords, cases = cases, pop = pop, w = w))
  w <- diag(4)
  expect_error(flex.test(coords, cases = cases, pop = pop, w = w, k = 10))
})