tests/testthat/test-roc_reports.R

In combiroc: Selection and Ranking of Omics Biomarkers Combinations Made Easy

test_that("roc_reports generates a list of length 3", {
  expect_type(reports, "list")
  expect_length(reports, 3)
})

test_that("ROC plot in reports objects is a ggplot objects", {
  expect_s3_class(reports$Plot, c("gg", "ggplot"))
})

test_that("Metrics object is a data frame of dim 3 rows and 11 columns", {
  expect_s3_class(reports$Metrics, "data.frame")
  expect_length(reports$Metrics, 11)
  expect_length(t(reports$Metrics), 33)
})

test_that("MODELS in reports objects is a list of 3 glm objects", {
  expect_type(reports$Models, "list")
  expect_length(reports$Models, 3)
  expect_s3_class(reports$Models[[1]], c("glm", "lm"))
  expect_s3_class(reports$Models[[2]], c("glm", "lm"))
  expect_s3_class(reports$Models[[3]], c("glm", "lm"))
})