test_that("set_textgrid_names", {
  file1 <- system.file("extdata", "test.TextGrid", package = "phonfieldwork")
  file2 <- readLines(file1)

  expect_equal(
    set_textgrid_names(file1,
      tiers = 3,
      names = "new_name", write = FALSE
    )[63],
    '        name = "new_name"'
  )
  expect_equal(
    set_textgrid_names(file2,
      tiers = 3,
      names = "new_name", write = FALSE
    )[63],
    '        name = "new_name"'
  )
})