tests/testthat/test-dBetaCorrBin.R

In Amalan-ConStat/R-fitODBOD: Modeling Over Dispersed Binomial Outcome Data Using BMD and ABD

context ("Scenario of un wanted inputs")
test_that("NA values are avoided",{
  expect_that(dBetaCorrBin(NA,4,0.1,.3,1),
              throws_error("NA or Infinite or NAN values in the Input"))
})
test_that("Infinite values are avoided",{
  expect_that(dBetaCorrBin(Inf,4,0.1,.3,1),
              throws_error("NA or Infinite or NAN values in the Input"))
})
test_that("NAN values are avoided",{
  expect_that(dBetaCorrBin(NaN,4,0.1,.3,1),
              throws_error("NA or Infinite or NAN values in the Input"))
})

context("Binomial random variable or trial value issues")
test_that("Random variable higher than Trial value",{
  expect_that(dBetaCorrBin(5,4,0.2,0.4,1),
              throws_error("Binomial random variable cannot be greater than binomial trial value"))
})
test_that("Negativity",{
  expect_that(dBetaCorrBin(-3,4,0.2,0.4,1),
              throws_error("Binomial random variable or binomial trial value cannot be negative"))
})
test_that("Random variable higher than Trial value",{
  expect_that(dBetaCorrBin(-8,-4,0.2,0.4,1),
              throws_error("Binomial random variable or binomial trial value cannot be negative"))
})

context("Correlation limitations")
test_that("Correlation above maximum limit",{
  expect_that(dBetaCorrBin(3,5,9,0.2,0.2),
              throws_error("Correlation cannot be greater than 1 or Lesser than -1 or it cannot be greater than Maximum Correlation or Lesser than Minimum Correlation"))
})
test_that("Correlation above 1",{
  expect_that(dBetaCorrBin(3,5,19,0.2,0.2),
              throws_error("Correlation cannot be greater than 1 or Lesser than -1 or it cannot be greater than Maximum Correlation or Lesser than Minimum Correlation"))
})
test_that("Correlation below minimum limit",{
  expect_that(dBetaCorrBin(3,5,-9,0.2,0.2),
              throws_error("Correlation cannot be greater than 1 or Lesser than -1 or it cannot be greater than Maximum Correlation or Lesser than Minimum Correlation"))
})
test_that("Correlation below -1",{
  expect_that(dBetaCorrBin(3,5,-19,0.2,0.2),
              throws_error("Correlation cannot be greater than 1 or Lesser than -1 or it cannot be greater than Maximum Correlation or Lesser than Minimum Correlation"))
})