test_that("Case in defalut", {
  x <- iris[1:1, ] |>
    dplyr::select(1) |>
    rtf_body() |>
    as_rtf_table() |>
    strsplit("\n")

  expect_snapshot_output(x[[1]])
})

test_that("Case for border_color_left and border_color_top", {
  x <- iris[1:1, ] |>
    dplyr::select(1) |>
    rtf_body(border_color_left = "red", border_color_top = "blue") |>
    as_rtf_table() |>
    strsplit("\n")

  expect_snapshot_output(x[[1]])
})

test_that("Case for having group_by without page_by", {
  x <- iris[1:2, 4:5] |>
    rtf_body(group_by = "Species") |>
    as_rtf_table() |>
    strsplit("\n")

  expect_snapshot_output(x[[1]])
})


# add additional test to increase coverage and for new feature
test_that("Test case when subline is not NULL", {
  x <- iris[c(1:4, 51:54), 3:5] |>
    mutate(s2 = paste0(Species, 1:2), s3 = s2) |>
    arrange(Species, s2) |>
    rtf_body(
      subline_by = "Species",
      page_by = "s2",
    ) |>
    as_rtf_table() |>
    strsplit("\n")

  expect_snapshot_output(x[[1]])


  data(r2rtf_adae)
  ae <- r2rtf_adae[200:260, ] |>
    arrange(SITEID, TRTA, USUBJID, ASTDY)

  ae <- ae |>
    mutate(
      AEDECODNUM = as.character(rownames(ae)),
      SUBLINEBY = paste0(
        "Trial Number: ", STUDYID,
        ", Site Number: ", SITEID
      ),
    ) |>
    select(USUBJID, ASTDY, AEDECODNUM, TRTA, SUBLINEBY) |>
    arrange(SUBLINEBY, TRTA, USUBJID, ASTDY) |>
    rtf_colheader("Subject| Rel Day | Adverse Code|") |>
    rtf_body(
      subline_by = "SUBLINEBY",
      page_by = c("TRTA"),
      group_by = c("USUBJID", "ASTDY"),
    ) |>
    as_rtf_table() |>
    strsplit("\n")

  expect_snapshot_output(ae[[1]])
})