tests/testthat/test-plot.R

test_that("ggplot() throws informative errors", {
  expect_snapshot_error(ggplot(mapping = letters))
  expect_snapshot_error(ggplot(data))
})

test_that("construction have user friendly errors", {
  expect_snapshot_error(+ geom_point())
  expect_snapshot_error(geom_point() + geom_bar())
  expect_snapshot_error(ggplot() + 1)
  expect_snapshot_error(ggplot() + geom_point)
})

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ggplot2 documentation built on June 22, 2024, 11:35 a.m.