dat <- data.frame(start = "2019-01-01", end = "2019-01-05", event = 1)

generated <- vistime_data(dat)


test_that("class is data.frame", {
    expect_s3_class(generated, "data.frame")
})

test_that("expected columns",
          {
              expect_setequal(
                  names(generated),
                  c(
                      "event",
                      "start",
                      "end",
                      "group",
                      "tooltip",
                      "label",
                      "col",
                      "fontcol",
                      "subplot",
                      "y"
                  )
              )
          })

test_that("optimize_y", {
  data <- read.csv(text="event,start,end
                       Phase 1,2020-12-15,2020-12-24
                       Phase 2,2020-12-23,2020-12-29
                       Phase 3,2020-12-28,2021-01-06
                       Phase 4,2021-01-06,2021-02-02")

  with_optimize <- vistime_data(data, optimize_y = T)
  without_optimize <- vistime_data(data, optimize_y = F)
  with_groups <- vistime_data(data, optimize_y = T, col.group = "event")

  expect_equal(without_optimize$y, c(4,3,2,1))
  expect_equal(with_optimize$y, c(2,1,2,2))
  expect_equal(with_groups$y, c(7,5,3,1))

})