tests/testthat/test-geom-text.R

In TomeTiger/ggplot2: Create Elegant Data Visualisations Using the Grammar of Graphics

context("geom_text")

# compute_just ------------------------------------------------------------

test_that("vertical and horizontal positions are equivalent", {
  horiz <- compute_just(c("left", "middle", "right"), c(0, 0, 0))
  vert <- compute_just(c("bottom", "center", "top"), c(0, 0, 0))

  expect_equal(horiz, vert)
})

test_that("inward moves text towards center", {
  expect_equal(
    compute_just(c("inward", "inward", "inward"), c(0, 0.5, 1)),
    c(0, 0.5, 1.0)
  )
})

test_that("outward moves text away from center", {
  expect_equal(
    compute_just(c("outward", "outward", "outward"), c(0, 0.5, 1)),
    c(1.0, 0.5, 0)
  )
})

test_that("inward points close to center are centered", {
  expect_equal(
    compute_just(c("inward", "inward", "inward"), c(0.5 - 1e-3, 0.5, 0.5 + 1e-3)),
    c(0.5, 0.5, 0.5)
  )
})