tests/testthat/test-syllabification.R

In syllabifyr: Syllabifier for CMU Dictionary Transcriptions

context("syllabification")

test_that("Syllabification returns data frames", {
  syls_df <- syllabify_test_dict %>%
    mutate(syl_df = map(trans, ~try(syllabify(.x))),
           class = map(syl_df, ~class(.x)[1]) %>% simplify())

  for (i in seq_along(syls_df$syl_df)){
    expect_is(syls_df$syl_df[[i]], "tbl_df")
  }
})

test_that("Syllabification is same length as transcription", {
  syls_df <- syllabify_test_dict %>%
    mutate(trans_vector= map(trans, pronunciation_check_cmu),
           trans_length = map(trans_vector, length) %>% simplify(),
           syl_df = map(trans, ~try(syllabify(.x))),
           syl_length = map(syl_df, nrow) %>% simplify()
           )
  for (i in seq_along(syls_df$syl_df)){
    expect_equal(syls_df$syl_length[[1]], syls_df$trans_length[[1]])
  }
})

test_that("Check Pronunciation", {
  expect_equal(length(pronunciation_check_cmu("F UW1")), 2)
  expect_equal(length(pronunciation_check_cmu("F  UW1")), 2)
  expect_error(pronunciation_check_cmu("C"),
               "Not a licit CMU transcription label: C")
})


test_that("Data columns", {
  syls_df <- syllabify_test_dict %>%
    mutate(syl_df = map(trans, ~try(syllabify(.x)))) %>%
    unnest(syl_df)

  expect_type(syls_df$syll, "double")
  expect_type(syls_df$part, "character")
  expect_type(syls_df$phone, "character")
  expect_type(syls_df$stress, "character")

  expect_true(all(syls_df$stress %in% c("0", "1", "2", NA)))
  expect_true(all(syls_df$part %in% c("onset", "nucleus", "coda")))
})