context("Testing news helpers")

dir_loc <- tempfile()
dir.create(dir_loc)
dir.create(paste0(dir_loc, "/inst"))
on.exit(unlink(dir_loc, recursive = TRUE))

description <- paste0(dir_loc, "/DESCRIPTION")
news_md <- paste0(dir_loc, "/NEWS.md")

test_that("update_news works", {
  # check for description
  expect_error(detect_package_folder(path = dir_loc), regexp = "Could not find DESCRIPTION file")
  writeLines(c("Package: testing"), description)

  # check for news
  expect_error(find_news(path = dir_loc), regexp = "does not have a NEWS.md")
  writeLines(c(
    "# testing 0.1.1 (2019-01-02)",
    " * BUG FIX: Fixing a lot of bugs!",
    "",
    "# testing 0.1.0 (2019-01-01)",
    " * FUNCTIONALITY: Oh man I implemented so many things today!",
    "   I am so smart, I am so smart",
    "   https://media0.giphy.com/media/vLruErVSYGx8s/giphy.gif?cid=3640f6095c939f916374546263a8a301",
    "",
    "# testing 0.0.1 (2018-12-31)",
    " * INITIAL RELEASE: super useful package!"
  ), news_md)

  # read news contents
  recent_news <- recent_news(path = dir_loc, 2)

  # check contents
  expect_is(recent_news, "character")
  expect_true(any(grepl("testing 0.1.1", recent_news)))
  expect_false(any(grepl("testing 0.0.1", recent_news)))
})