test_that("sub_missing() works correctly", {

  # Create an input table with two columns, both numeric
  data_tbl <-
    dplyr::tibble(
      num_1 = c(NA, 74, NA, 93, NA, 76, NA),
      num_2 = c(34, 74, 23, 93, 35, 76, 57)
    )

  # Create a `gt_tbl` object with `gt()` and the
  # `data_tbl` dataset
  tab <- gt(data_tbl)

  # Expect that the object has the correct classes
  expect_s3_class(tab, c("gt_tbl", "data.frame"))

  # Extract vectors from the table object for comparison
  # to the original dataset
  num_1 <- dt_data_get(tab)[["num_1"]]
  num_2 <- dt_data_get(tab)[["num_2"]]

  # Expect the extracted values to match those of the
  # original dataset
  expect_equal(data_tbl$num_1, num_1)
  expect_equal(data_tbl$num_2, num_2)

  # Expect an error when attempting to format a column
  # that does not exist
  expect_error(sub_missing(tab, columns = "num_3"))

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1") %>%
       render_formats_test(context = "default"))[["num_1"]],
    c("---", "74", "---", "93", "---", "76", "---")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("\U02014", "74", "\U02014", "93", "\U02014", "76", "\U02014")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("—", "74", "—", "93", "—", "76", "—")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("\\'97", "74", "\\'97", "93", "\\'97", "76", "\\'97")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "--") %>%
       render_formats_test(context = "default"))[["num_1"]],
    c("--", "74", "--", "93", "--", "76", "--")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "--") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("\U02013", "74", "\U02013", "93", "\U02013", "76", "\U02013")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "--") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("\U02013", "74", "\U02013", "93", "\U02013", "76", "\U02013")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "--") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("\\'96", "74", "\\'96", "93", "\\'96", "76", "\\'96")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_2") %>%
       render_formats_test(context = "default"))[["num_2"]],
    c("34", "74", "23", "93", "35", "76", "57")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "a") %>%
       render_formats_test(context = "default"))[["num_1"]],
    c("a", "74", "a", "93", "a", "76", "a")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "a") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("a", "74", "a", "93", "a", "76", "a")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "a") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("a", "74", "a", "93", "a", "76", "a")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "a") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("a", "74", "a", "93", "a", "76", "a")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = md("**a** *b*")) %>%
       render_formats_test(context = "default"))[["num_1"]],
    c("**a** *b*", "74", "**a** *b*", "93", "**a** *b*", "76", "**a** *b*")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = md("**a** *b*")) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c(
      "<span class='gt_from_md'><strong>a</strong> <em>b</em></span>",
      "74",
      "<span class='gt_from_md'><strong>a</strong> <em>b</em></span>",
      "93",
      "<span class='gt_from_md'><strong>a</strong> <em>b</em></span>",
      "76",
      "<span class='gt_from_md'><strong>a</strong> <em>b</em></span>"
    )
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = md("**a** *b*")) %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c(
      "\\textbf{a} \\emph{b}", "74", "\\textbf{a} \\emph{b}", "93",
      "\\textbf{a} \\emph{b}", "76", "\\textbf{a} \\emph{b}"
    )
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = md("**a** *b*")) %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c(
      "{\\b a} {\\i b}", "74", "{\\b a} {\\i b}", "93", "{\\b a} {\\i b}",
      "76", "{\\b a} {\\i b}"
    )
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "<a> & <b>") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c(
      "&lt;a&gt; &amp; &lt;b&gt;", "74", "&lt;a&gt; &amp; &lt;b&gt;",
      "93", "&lt;a&gt; &amp; &lt;b&gt;", "76", "&lt;a&gt; &amp; &lt;b&gt;"
    )
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = " ~$ {a} & {b} $~") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c(
      " \\textasciitilde{}\\$ \\{a\\} \\& \\{b\\} \\$\\textasciitilde{}",
      "74", " \\textasciitilde{}\\$ \\{a\\} \\& \\{b\\} \\$\\textasciitilde{}",
      "93", " \\textasciitilde{}\\$ \\{a\\} \\& \\{b\\} \\$\\textasciitilde{}",
      "76", " \\textasciitilde{}\\$ \\{a\\} \\& \\{b\\} \\$\\textasciitilde{}"
    )
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", missing_text = "\\emdash\\emdash\\emdash\\emdash") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c(
      "\\'5cemdash\\'5cemdash\\'5cemdash\\'5cemdash", "74",
      "\\'5cemdash\\'5cemdash\\'5cemdash\\'5cemdash",
      "93", "\\'5cemdash\\'5cemdash\\'5cemdash\\'5cemdash", "76",
      "\\'5cemdash\\'5cemdash\\'5cemdash\\'5cemdash"
    )
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = "num_1", rows = num_2 < 50) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("\U02014", "74", "\U02014", "93", "\U02014", "76", "NA")
  )

  # Format columns with `fmt_number()` then use
  # `sub_missing()` on all columns (the two functions
  # shouldn't wipe out formatting on cells)
  expect_equal(
    (tab %>%
       fmt_number(
         columns = everything(),
         decimals = 3
       ) %>%
       sub_missing(columns = everything()) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("\U02014", "74.000", "\U02014", "93.000", "\U02014", "76.000", "\U02014")
  )

  expect_equal(
    (tab %>%
       fmt_number(
         columns = everything(),
         decimals = 3
       ) %>%
       sub_missing(columns = everything()) %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("—", "74.000", "—", "93.000", "—", "76.000", "—")
  )

  expect_equal(
    (tab %>%
       fmt_number(
         columns = everything(),
         decimals = 3
       ) %>%
       sub_missing(columns = everything()) %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("\\'97", "74.000", "\\'97", "93.000", "\\'97", "76.000", "\\'97")
  )

  # Reverse the ordering: use `sub_missing()` first
  # then `fmt_number()`; expect the same output as before
  expect_equal(
    (tab %>%
       sub_missing(columns = everything()) %>%
       fmt_number(
         columns = everything(),
         decimals = 3
       ) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("\U02014", "74.000", "\U02014", "93.000", "\U02014", "76.000", "\U02014")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = everything()) %>%
       fmt_number(
         columns = everything(),
         decimals = 3
       ) %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("—", "74.000", "—", "93.000", "—", "76.000", "—")
  )

  expect_equal(
    (tab %>%
       sub_missing(columns = everything()) %>%
       fmt_number(
         columns = everything(),
         decimals = 3
       ) %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("\\'97", "74.000", "\\'97", "93.000", "\\'97", "76.000", "\\'97")
  )
})

test_that("sub_zero() works correctly", {

  # Create an input data frame with two columns: one numeric, one character
  data_tbl <-
    dplyr::tibble(
      num_1 = c(NA, 74, NA, 0, NA, 0.0001, NA),
      lett = LETTERS[1:7]
    )

  # Create a `gt_tbl` object with `gt()` and the
  # `data_tbl` dataset
  tab <- gt(data_tbl)

  # Expect an error when attempting to format a column
  # that does not exist
  expect_error(tab %>% sub_zero(columns = "num_3"))

  expect_equal(
    (tab %>%
       sub_zero(columns = "num_1") %>%
       render_formats_test(context = "default"))[["num_1"]],
    c("NA", "74.0000", "NA", "nil", "NA", "0.0001", "NA")
  )

  expect_equal(
    (tab %>%
       sub_zero(columns = "num_1") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("NA", "74.0000", "NA", "nil", "NA", "0.0001", "NA")
  )

  expect_equal(
    (tab %>%
       sub_zero(columns = "num_1") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("NA", "74.0000", "NA", "nil", "NA", "0.0001", "NA")
  )

  expect_equal(
    (tab %>%
       sub_zero(columns = "num_1") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("NA", "74.0000", "NA", "nil", "NA", "0.0001", "NA")
  )

  expect_equal(
    (tab %>%
       sub_zero(columns = "num_1", zero_text = md("*nil*")) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c(
      "NA", "74.0000", "NA",
      "<span class='gt_from_md'><em>nil</em></span>",
      "NA", "0.0001", "NA"
    )
  )

  expect_equal(
    (tab %>%
       sub_zero(columns = "num_1", zero_text = md("*nil*")) %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("NA", "74.0000", "NA", "\\emph{nil}", "NA", "0.0001", "NA")
  )

  expect_equal(
    (tab %>%
       sub_zero(columns = "num_1", zero_text = md("*nil*")) %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("NA", "74.0000", "NA", "{\\i nil}", "NA", "0.0001", "NA")
  )

  expect_equal(
    tab %>% sub_zero(columns = "lett") %>% render_as_html(),
    tab %>% render_as_html()
  )

  # Format columns with `fmt_number()` then use
  # `sub_zero()` on all columns (the two functions
  # shouldn't wipe out formatting on cells)
  expect_equal(
    (tab %>%
       fmt_number(
         columns = num_1,
         decimals = 3
       ) %>%
       sub_zero(columns = everything()) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("NA", "74.000", "NA", "nil", "NA", "0.000", "NA")
  )

  # Reverse the ordering: use `sub_zero()` first
  # then `fmt_number()`; expect the same output as before
  expect_equal(
    (tab %>%
       sub_zero(columns = everything()) %>%
       fmt_number(
         columns = num_1,
         decimals = 3
       ) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("NA", "74.000", "NA", "nil", "NA", "0.000", "NA")
  )
})

test_that("sub_small_vals() works correctly", {

  # Create an input table with three columns
  data_tbl <-
    dplyr::tibble(
      num_1 = c(-0.0001, 74, NA, 0, 5e12, 0.0001, 84.34),
      int_1 = c(1L, -900L, 800L, 5L, NA, 0L, -32L),
      lett = LETTERS[1:7]
    )

  # Create a `gt_tbl` object with `gt()` and the
  # `data_tbl` dataset
  tab <- gt(data_tbl)

  # Expect an error when attempting to format a column
  # that does not exist
  expect_error(tab %>% sub_small_vals(columns = "num_3"))

  expect_equal(
    (tab %>%
       sub_small_vals(columns = "num_1") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("-1.000e-04", "7.400e+01", "NA", "0.000e+00", "5.000e+12", "&lt;0.01", "8.434e+01")
  )

  expect_equal(
    (tab %>%
       sub_small_vals(columns = "num_1") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("-1.000e-04", "7.400e+01", "NA", "0.000e+00", "5.000e+12", "<0.01", "8.434e+01")
  )

  expect_equal(
    (tab %>%
       sub_small_vals(columns = "num_1") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("-1.000e-04", "7.400e+01", "NA", "0.000e+00", "5.000e+12", "<0.01", "8.434e+01")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", "5,000,000,000,000.00", "&lt;0.01", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", "5,000,000,000,000.00", "<0.01", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", "5,000,000,000,000.00", "<0.01", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", threshold = 100) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("0.00", "&lt;100", "NA", "0.00", "5,000,000,000,000.00", "&lt;100", "&lt;100")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", threshold = 100) %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("0.00", "<100", "NA", "0.00", "5,000,000,000,000.00", "<100", "<100")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", threshold = 100) %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("0.00", "<100", "NA", "0.00", "5,000,000,000,000.00", "<100", "<100")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", sign = "-") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c(
      "<span class='gt_from_md'>&lt;<em>abs</em>(-0.01)</span>",
      "74.00", "NA", "0.00", "5,000,000,000,000.00", "0.00", "84.34"
    )
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", sign = "-") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c(
      "\\textless{}\\emph{abs}(-0.01)", "74.00", "NA", "0.00",
      "5,000,000,000,000.00", "0.00", "84.34"
    )
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", sign = "-") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c(
      "<{\\i abs}(-0.01)", "74.00", "NA", "0.00", "5,000,000,000,000.00",
      "0.00", "84.34"
    )
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", small_pattern = "smol", sign = "-") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("smol", "74.00", "NA", "0.00", "5,000,000,000,000.00", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", small_pattern = "smol", sign = "-") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("smol", "74.00", "NA", "0.00", "5,000,000,000,000.00", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", small_pattern = "smol", sign = "-") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("smol", "74.00", "NA", "0.00", "5,000,000,000,000.00", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", small_pattern = "<<{x}>>", sign = "-") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c(
      "&lt;&lt;0.01&gt;&gt;", "74.00", "NA", "0.00",
      "5,000,000,000,000.00", "0.00", "84.34"
    )
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", small_pattern = "{{{x}}}", sign = "-") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c(
      "\\{\\{0.01\\}\\}", "74.00", "NA", "0.00", "5,000,000,000,000.00",
      "0.00", "84.34"
    )
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_small_vals(columns = "num_1", small_pattern = "\\d{x}\\d", sign = "-") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c(
      "\\'5cd0.01\\'5cd", "74.00", "NA", "0.00", "5,000,000,000,000.00",
      "0.00", "84.34"
    )
  )

  # Expect that the sign of the `threshold` value doesn't affect anything
  expect_equal(
    tab %>%
      sub_small_vals(columns = "num_1", threshold = 3, sign = "-") %>%
      render_as_html(),
    tab %>%
      sub_small_vals(columns = "num_1", threshold = -3, sign = "-") %>%
      render_as_html()
  )

  expect_equal(
    tab %>%
      sub_small_vals(columns = "num_1", threshold = 10, sign = "+") %>%
      render_as_html(),
    tab %>%
      sub_small_vals(columns = "num_1", threshold = -10, sign = "+") %>%
      render_as_html()
  )

  expect_equal(
    tab %>% sub_small_vals(columns = "lett") %>% render_as_html(),
    tab %>% render_as_html()
  )

  # Expect an error if an invalid `sign` is used
  expect_error(tab %>% sub_small_vals(columns = "num_1", sign = "?"))
})

test_that("sub_large_vals() works correctly", {

  # Create an input table with three columns
  data_tbl <-
    dplyr::tibble(
      num_1 = c(-0.0001, 74, NA, 0, 5e12, 0.0001, 84.34),
      int_1 = c(1L, -100000L, 800L, 5L, NA, 0L, -32L),
      lett = LETTERS[1:7]
    )

  # Create a `gt_tbl` object with `gt()` and the
  # `data_tbl` dataset
  tab <- gt(data_tbl)

  # Expect an error when attempting to format a column
  # that does not exist
  expect_error(tab %>% sub_large_vals(columns = "num_3"))

  expect_equal(
    (tab %>%
       sub_large_vals(columns = "num_1") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("-0.0001", "74.0000", "NA", "0.0000", "≥1e+12", "0.0001",
      "84.3400")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "num_1") %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", "≥1e+12", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "num_1") %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", "$\\geq$1e+12", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "num_1") %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", ">=1e+12", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "num_1", threshold = 100) %>%
       render_formats_test(context = "html"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", "≥100", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "num_1", threshold = 100) %>%
       render_formats_test(context = "latex"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", "$\\geq$100", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "num_1", threshold = 100) %>%
       render_formats_test(context = "rtf"))[["num_1"]],
    c("0.00", "74.00", "NA", "0.00", ">=100", "0.00", "84.34")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 500, sign = "-") %>%
       render_formats_test(context = "html"))[["int_1"]],
    c("1", "≤-500", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 500, sign = "-") %>%
       render_formats_test(context = "latex"))[["int_1"]],
    c("1", "$\\leq$-500", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 500, sign = "-") %>%
       render_formats_test(context = "rtf"))[["int_1"]],
    c("1", "<=-500", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 400, large_pattern = "big", sign = "-") %>%
       render_formats_test(context = "html"))[["int_1"]],
    c("1", "big", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 400, large_pattern = "big", sign = "-") %>%
       render_formats_test(context = "latex"))[["int_1"]],
    c("1", "big", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 400, large_pattern = "big", sign = "-") %>%
       render_formats_test(context = "rtf"))[["int_1"]],
    c("1", "big", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 300, large_pattern = "<<{x}>>", sign = "-") %>%
       render_formats_test(context = "html"))[["int_1"]],
    c("1", "&lt;&lt;300&gt;&gt;", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 300, large_pattern = "{{{x}}}", sign = "-") %>%
       render_formats_test(context = "latex"))[["int_1"]],
    c("1", "\\{\\{300\\}\\}", "800", "5", "NA", "0", "-32")
  )

  expect_equal(
    (tab %>%
       fmt_number(columns = num_1) %>%
       sub_large_vals(columns = "int_1", threshold = 300, large_pattern = "\\d{x}\\d", sign = "-") %>%
       render_formats_test(context = "rtf"))[["int_1"]],
    c("1", "\\'5cd300\\'5cd", "800", "5", "NA", "0", "-32")
  )

  # Expect that the order of `fmt_*()` and `sub_*()` functions shouldn't
  # make a different in the final outputs
  expect_equal(
    tab %>%
      fmt_integer(columns = "int_1") %>%
      sub_large_vals(columns = "int_1", threshold = 3, sign = "-") %>%
      render_as_html(),
    tab %>%
      sub_large_vals(columns = "int_1", threshold = -3, sign = "-") %>%
      fmt_integer(columns = "int_1") %>%
      render_as_html()
  )

  # Expect that the sign of the `threshold` value doesn't affect anything
  expect_equal(
    tab %>%
      sub_large_vals(columns = "int_1", threshold = 3, sign = "-") %>%
      render_as_html(),
    tab %>%
      sub_large_vals(columns = "int_1", threshold = -3, sign = "-") %>%
      render_as_html()
  )

  expect_equal(
    tab %>%
      sub_large_vals(columns = "num_1", threshold = 10, sign = "+") %>%
      render_as_html(),
    tab %>%
      sub_large_vals(columns = "num_1", threshold = -10, sign = "+") %>%
      render_as_html()
  )

  expect_equal(
    tab %>% sub_large_vals(columns = "lett") %>% render_as_html(),
    tab %>% render_as_html()
  )

  # Expect an error if an invalid `sign` is used
  expect_error(tab %>% sub_large_vals(columns = "num_1", sign = "?"))
})

test_that("sub_values() works correctly", {

  # Create an input table with three columns
  data_tbl <-
    dplyr::tibble(
      num_1 = c(-0.01, 74, NA, 0, 500, 0.001, 84.3),
      int_1 = c(1L, -100000L, 800L, 5L, NA, 1L, -32L),
      lett = LETTERS[1:7]
    )

  # Expect that a single integer value can be replaced with text
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 1, replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("hey!", "-100000", "800", "5", "NA", "hey!", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that the same replacement of an integer value can be done with a
  # number that is a string
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = "1", replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("hey!", "-100000", "800", "5", "NA", "hey!", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that character values can be replaced with text
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = "G", replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "hey!")
    )
  )

  # Expect that numeric values can be replaced with text
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 74, replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "hey!", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that zero values can be replaced with text
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 0, replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "hey!", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that consecutive replacements on the same column works well
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 0, replacement = "hey!") %>%
      sub_values(values = 74, replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "hey!", "NA", "hey!", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that a replaced value does not become an input value (`values` always
  # refers to the input table data)
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 0, replacement = "hey!") %>%
      sub_values(values = "hey!", replacement = "whey") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "hey!", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that in consecutive replacements of the same cell, the last call wins
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 74, replacement = "hey!") %>%
      sub_values(values = 74, replacement = "HEY!!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "HEY!!", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that consecutive replacements in different columns can occur
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 800, replacement = "hey!") %>%
      sub_values(values = 74, replacement = "HEY!!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "HEY!!", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "hey!", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that more complex text can be used as a replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = "A", replacement = "It's A") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("It's A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that a numeric value as a replacement works fine on a character column
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = "A", replacement = 5.2) %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("5.2", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that formatted numeric values also should work
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = "A", replacement = vec_fmt_number(5.2, decimals = 5, output = "plain")) %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("5.20000", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect values with vector lengths greater than one should work
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = c("A", "C"), replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("hey!", "B", "hey!", "D", "E", "F", "G")
    )
  )

  # Expect that a simple `pattern` works the same as a replacement with `values`
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "It's A") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("It's A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that more complex `pattern` will work to replace text values
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A|C", replacement = "[ac]") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("[ac]", "B", "[ac]", "D", "E", "F", "G")
    )
  )

  # Expect that the `pattern` matching won't operate over numeric or integer columns
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "0", replacement = "[ac]") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "1", replacement = "[ac]") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that a function given to `fn` will work
  expect_equal(
    gt(data_tbl) %>%
      sub_values(fn = function(x) {x < 0}, replacement = "negative") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("negative", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "negative", "800", "5", "NA", "1", "negative"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that a function given to `fn` will work
  expect_equal(
    gt(data_tbl) %>%
      sub_values(fn = function(x) x >= 0 & x < 50, replacement = "between") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.01", "74.00", "NA", "between", "500.00", "between", "84.30"),
      int_1 = c("between", "-100000", "800", "between", "NA", "between", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that a function given to `fn` will work
  expect_equal(
    gt(data_tbl) %>%
      sub_values(fn = function(x) x %in% LETTERS, replacement = "0") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("0", "0", "0", "0", "0", "0", "0")
    )
  )

  # Expect that `fn` will override `pattern`
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "B|C", fn = function(x) x == 5, replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "hey!", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that `fn` will override `values`
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 1, fn = function(x) x == 5, replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "hey!", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that `fn` will override both `pattern` and `values`
  expect_equal(
    gt(data_tbl) %>%
      sub_values(
        values = 1,
        pattern = "B|C",
        fn = function(x) x == 5,
        replacement = "hey!"
      ) %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "hey!", "NA", "1", "-32"),
      lett = c("A", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect that `pattern` will override `values`
  expect_equal(
    gt(data_tbl) %>%
      sub_values(values = 1, pattern = "B|C", replacement = "hey!") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("A", "hey!", "hey!", "D", "E", "F", "G")
    )
  )

  # Expect that by default the replacement will be escaped for the output
  # context; HTML output, with escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "<p>It's A</p>") %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("&lt;p&gt;It's A&lt;/p&gt;", "B", "C", "D", "E", "F", "G")
    )
  )

  # HTML output, *no* escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "<div>It's A</div>", escape = FALSE) %>%
      render_formats_test(context = "html") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("<div>It's A</div>", "B", "C", "D", "E", "F", "G")
    )
  )

  # LaTeX output, with escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "$dollar$") %>%
      render_formats_test(context = "latex") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("\\$dollar\\$", "B", "C", "D", "E", "F", "G")
    )
  )

  # LaTeX output, *no* escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "$dollar$", escape = FALSE) %>%
      render_formats_test(context = "latex") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("$dollar$", "B", "C", "D", "E", "F", "G")
    )
  )

  # RTF output, with escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "{hey}") %>%
      render_formats_test(context = "rtf") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("\\'7bhey\\'7d", "B", "C", "D", "E", "F", "G")
    )
  )

  # RTF output, *no* escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "{hey}", escape = FALSE) %>%
      render_formats_test(context = "rtf") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("{hey}", "B", "C", "D", "E", "F", "G")
    )
  )

  # Word output, with escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "<hey>") %>%
      render_formats_test(context = "word") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("&lt;hey&gt;", "B", "C", "D", "E", "F", "G")
    )
  )

  # Word output, *no* escaping of the replacement
  expect_equal(
    gt(data_tbl) %>%
      sub_values(pattern = "A", replacement = "<hey>", escape = FALSE) %>%
      render_formats_test(context = "word") %>%
      as.list(),
    list(
      num_1 = c("-0.010", "74.000", "NA", "0.000", "500.000", "0.001", "84.300"),
      int_1 = c("1", "-100000", "800", "5", "NA", "1", "-32"),
      lett = c("<hey>", "B", "C", "D", "E", "F", "G")
    )
  )

  # Expect an error if no `values`, `pattern`, or `fn` given
  expect_error(gt(data_tbl) %>% sub_values(replacement = "hey"))

  # Expect an error if no `replacement` given
  expect_error(gt(data_tbl) %>% sub_values(values = "A"))

  # Expect an error if the `replacement` isn't of the right type
  expect_error(gt(data_tbl) %>% sub_values(values = "A", replacement = TRUE))

  # Expect an error if the `replacement` isn't of the right length
  expect_error(gt(data_tbl) %>% sub_values(values = "A", replacement = character(0L)))
  expect_error(gt(data_tbl) %>% sub_values(values = "A", replacement = c("A", "B")))

  # Expect an error if the `fn` is not a function
  expect_error(gt(data_tbl) %>% sub_values(fn = "A", replacement = "error"))
})
