tests/testthat/test-plot.check_collinearity.R

In easystats/see: Model Visualisation Toolbox for 'easystats' and 'ggplot2'

test_that("`plot.see_check_collinearity()` works", {
  m <- lm(mpg ~ wt + cyl + gear + disp, data = mtcars)
  result <- performance::check_collinearity(m)
  expect_s3_class(plot(result), c("gg", "ggplot"))

  skip_if_not_installed("vdiffr")
  vdiffr::expect_doppelganger(
    title = "plot.check_collinearity",
    fig = plot(result)
  )
})