tests/testthat/test-nice_qq.R

In rempsyc: Convenience Functions for Psychology

test_that("nice_qq", {
  skip_if_not_installed("ggplot2")
  skip_if_not_installed("qqplotr")

  x1 <- nice_qq(
    data = iris,
    variable = "Sepal.Length",
    group = "Species"
  )

  expect_s3_class(
    x1,
    c("gg", "ggplot2")
  )

  ggplot2::ggsave("plot.jpg",
    width = 7, height = 7, unit = "in",
    dpi = 300, path = NULL
  )

  # expect_snapshot_file("plot.jpg")
  # Not working...

  # Remove file
  unlink("plot.jpg")

  # Further customization
  x2 <- nice_qq(
    data = iris,
    variable = "Sepal.Length",
    group = "Species",
    colours = c("#00BA38", "#619CFF", "#F8766D"),
    groups.labels = c("(a) Setosa", "(b) Versicolor", "(c) Virginica"),
    grid = FALSE,
    shapiro = TRUE,
    title = NULL
  )

  expect_s3_class(
    x2,
    c("gg", "ggplot2")
  )
})