tests/testthat/test-ggplot-resize.R

In plotly: Create Interactive Web Graphics via 'plotly.js'

test_that("ggplotly shouldn't populate layout.[width/height] by default", {
  lay <- ggplotly(qplot(1:10))$x$layout
  expect_null(lay$height)
  expect_null(lay$width)
})

# TODO: test the functionality client side!