library(testthat)

test_that("gcv_convert", {
  expect_equal(
    gcv_convert(0.01),
    100*sqrt(exp(0.01)-1),
    info="The math is numerically accurate"
  )
  expect_equal(
    gcv_convert(c(0.1, 0.01)),
    100*sqrt(exp(c(0.1, 0.01))-1),
    info="Vectorized input works"
  )
  expect_equal(
    gcv_convert(0.01),
    gcv_convert(gsd=0.1),
    info="gvar and gsd work the same"
  )
  expect_error(
    gcv_convert(gvar=0.01, gsd=0.1),
    regexp="Only one of `gvar` or `gsd` may be provided at a time.",
    fixed=TRUE
  )
})

test_that("gm", {
  expect_equal(
    gm(c(323, 5632, 342, 667, 2174)),
    979.6148,tolerance = 1e-4,
    info="The math is numerically accurate"
  )
})
  
test_that("pcv", {
  expect_equal(
    pcv(c(323, 5632, 342, 667, 2174)),
    123.6015,tolerance = 1e-4,
    info="The math is numerically accurate"
  )
})

test_that("gcv", {
  expect_equal(
    gcv(c(323, 5632, 342, 667, 2174)),
    1.920674,tolerance = 1e-4,
    info="The math is numerically accurate"
  )
})