values <- c(5.123456, 7.891112)

test_that("Default horizontal separator works", {
  expect_true(is.null(getOption("formatters_default_hsep")))
  expect_error(set_default_hsep("foo"))
  expect_silent(set_default_hsep("a"))
  expect_equal(default_hsep(), "a")
  expect_silent(set_default_hsep(NULL))
  expect_true(default_hsep() %in% c("\u2014", "-"))
})

test_that("Default horizontal separator works", {
  expect_true(is.null(getOption("formatters_default_page_number")))
  expect_true(is.null(default_page_number()))
  expect_silent(set_default_page_number("page {i} of {n}"))
  expect_equal(default_page_number(), "page {i} of {n}")
  expect_silent(set_default_page_number(NULL))
  expect_true(is.null(default_page_number()))
})

test_that("make_row_df produces custom error message if used on MatrixPrintForm", {
  # To cover generic that does use {rtables} obj (no circular deps)
  expect_error(
    make_row_df(basic_matrix_form(iris)),
    "MatrixPrintForm"
  )
})

test_that("formats work", {
  ## listing supported formats and enuring they all read as valid
  forms <- list_valid_format_labels()

  res <- sapply(forms, function(vc) all(sapply(vc, is_valid_format)))
  expect_true(all(res))

  ## core formatter tests for format strings

  expect_identical(
    format_value(values[1], format = "xx"),
    paste(values[1])
  )

  expect_identical(
    format_value(values[1], format = "xx."),
    "5"
  )

  expect_identical(
    format_value(values[1], format = "xx.x"),
    "5.1"
  )

  expect_identical(
    format_value(values[1], format = "xx.xx"),
    "5.12"
  )

  expect_identical(
    format_value(values[1], format = "xx.xxx"),
    "5.123"
  )

  expect_identical(
    format_value(values[1], format = "xx.xxxx"),
    "5.1235"
  )

  expect_identical(
    format_value(values[1], format = "xx%"),
    paste0(values[1] * 100, "%")
  )

  expect_identical(
    format_value(values[1], format = "xx.%"),
    "512%"
  )

  expect_identical(
    format_value(values[1], format = "xx.x%"),
    "512.3%"
  )

  expect_identical(
    format_value(values[1], format = "xx.xx%"),
    "512.35%"
  )

  expect_identical(
    format_value(values[1], format = "xx.xxx%"),
    "512.346%"
  )

  expect_identical(
    format_value(values[1], format = ">999.9"),
    "5.1"
  )

  expect_identical(
    format_value(10000, format = ">999.9"),
    ">999.9"
  )

  expect_identical(
    format_value(values[1], format = ">999.99"),
    "5.12"
  )

  expect_identical(
    format_value(10000, format = ">999.99"),
    ">999.99"
  )

  expect_identical(
    format_value(.0004, format = "x.xxxx | (<0.0001)"),
    "0.0004"
  )

  expect_identical(
    format_value(.00004, format = "x.xxxx | (<0.0001)"),
    "<0.0001"
  )

  expect_identical(
    format_value(values, format = "xx / xx"),
    paste(values, collapse = " / ")
  )

  expect_identical(
    format_value(values, format = "xx. / xx."),
    "5 / 8"
  )

  expect_identical(
    format_value(values, format = "xx.x / xx.x"),
    "5.1 / 7.9"
  )

  expect_identical(
    format_value(values, format = "xx.xx / xx.xx"),
    "5.12 / 7.89"
  )

  expect_identical(
    format_value(values, format = "xx.xxx / xx.xxx"),
    "5.123 / 7.891"
  )

  expect_identical(
    format_value(values, format = "xx (xx%)"),
    paste0(values[1], " (", values[2] * 100, "%)")
  )

  expect_identical(
    format_value(values, format = "xx (xx.%)"),
    paste0(values[1], " (789%)")
  )

  expect_identical(
    format_value(values, format = "xx. (xx.%)"),
    paste0(5, " (789%)")
  )

  expect_identical(
    format_value(values, format = "xx (xx.x%)"),
    paste0(values[1], " (789.1%)")
  )

  expect_identical(
    format_value(values, format = "xx (xx.xx%)"),
    paste0(values[1], " (789.11%)")
  )

  expect_identical(
    format_value(values, format = "xx.x (xx.x%)"),
    "5.1 (789.1%)"
  )

  expect_identical(
    format_value(values, format = "xx.xx (xx.xx%)"),
    "5.12 (789.11%)"
  )

  expect_identical(
    format_value(values, format = "xx.x (xx.x%)"),
    "5.1 (789.1%)"
  )

  expect_identical(
    format_value(values, format = "(xx, xx)"),
    paste0("(", values[1], ", ", values[2], ")")
  )

  expect_identical(
    format_value(values, format = "(xx., xx.)"),
    "(5, 8)"
  )

  expect_identical(
    format_value(values, format = "(xx.x, xx.x)"),
    "(5.1, 7.9)"
  )

  expect_identical(
    format_value(values, format = "(xx.xx, xx.xx)"),
    "(5.12, 7.89)"
  )

  expect_identical(
    format_value(values, format = "(xx.xxx, xx.xxx)"),
    "(5.123, 7.891)"
  )

  expect_identical(
    format_value(values, format = "(xx.xxxx, xx.xxxx)"),
    "(5.1235, 7.8911)"
  )

  expect_identical(
    format_value(values, format = "xx - xx"),
    paste(values, collapse = " - ")
  )

  expect_identical(
    format_value(values, format = "xx.x - xx.x"),
    "5.1 - 7.9"
  )

  expect_identical(
    format_value(values, format = "xx.xx - xx.xx"),
    "5.12 - 7.89"
  )

  expect_identical(
    format_value(values, format = "xx (xx%)"),
    paste0(values[1], " (", values[2] * 100, "%)")
  )

  expect_identical(
    format_value(values, format = "xx (xx)"),
    paste0(values[1], " (", values[2], ")")
  )

  expect_identical(
    format_value(values, format = "xx (xx.)"),
    paste0(values[1], " (8)")
  )

  expect_identical(
    format_value(values, format = "xx (xx.x)"),
    paste0(values[1], " (7.9)")
  )

  expect_identical(
    format_value(values, format = "xx (xx.xx)"),
    paste0(values[1], " (7.89)")
  )

  expect_identical(
    format_value(values, format = "xx. (xx.)"),
    paste0(5, " (8)")
  )

  expect_identical(
    format_value(values, format = "xx.x (xx.x)"),
    "5.1 (7.9)"
  )

  expect_identical(
    format_value(values, format = "xx.xx (xx.xx)"),
    "5.12 (7.89)"
  )

  expect_identical(
    format_value(values, format = "xx.x, xx.x"),
    "5.1, 7.9"
  )

  expect_identical(
    format_value(values, format = "xx.x to xx.x"),
    "5.1 to 7.9"
  )

  expect_identical(
    format_value(c(values, 10.1235), format = "xx. (xx. - xx.)"),
    "5 (8 - 10)"
  )

  expect_identical(
    format_value(c(values, 10.1235), format = "xx.x (xx.x - xx.x)"),
    "5.1 (7.9 - 10.1)"
  )

  expect_identical(
    format_value(c(values, 10.1235), format = "xx.xx (xx.xx - xx.xx)"),
    "5.12 (7.89 - 10.12)"
  )

  expect_identical(
    format_value(c(values, 10.1235), format = "xx.xxx (xx.xxx - xx.xxx)"),
    "5.123 (7.891 - 10.124)"
  )

  expect_identical(format_value(NULL, "xx"), "")

  expect_identical(
    format_value(5.123, "xx.x", output = "html"),
    list("5.1" = htmltools::tagList(format_value(5.123, "xx.x"), NULL))
  )

  expect_identical(format_value(c(500, 1), "N=xx (xx%)"), "N=500 (100%)")
  expect_identical(format_value(c(500), "N=xx"), "N=500")
  expect_identical(format_value(c(500), "(N=xx)"), "(N=500)")

  ## errors

  expect_error(format_value(5.1, "abcd"), "unknown format label")
  expect_error(format_value(5.1, "xx - xx"), "are of different length")

  expect_error(format_value(c(5.1, 2, 3), "xx - xx"), "are of different length")
  ## handling NAs

  results <- vapply(forms[["1d"]], function(fmt) format_value(NA, format = fmt), "")
  justnastr <- results == "NA"

  expect_true(all(justnastr))

  expect_identical(
    format_value(NA, "xx.", na_str = "-"),
    "-"
  )
  expect_identical(
    format_value(NA, "xx", na_str = "-"),
    "-"
  )

  expect_identical(
    format_value(c(1, NA), "xx"),
    c("1", "NA")
  )

  ## trailing 0s are correct
  expect_identical(format_value(0, "xx."), "0")
  expect_identical(format_value(0, "xx.x"), "0.0")
  expect_identical(format_value(0, "xx.xx"), "0.00")
  expect_identical(format_value(0, "xx.xxx"), "0.000")
  expect_identical(format_value(0, "xx.xxxx"), "0.0000")

  expect_identical(
    format_value(c(NA, NA), format = "xx.x - xx.x", na_str = c("hi", "lo")),
    "hi - lo"
  )

  expect_identical(
    format_value(c(NA, NA), format = "xx.x - xx.x", na_str = "what"),
    "what"
  )

  expect_identical(
    format_value(c(NA, 5.2), format = "xx.x - xx.x", na_str = "what"),
    "what - 5.2"
  )

  expect_identical(
    format_value(c(NA, 5.2), format = "xx.x - xx.x", na_str = c("hi", "lo")),
    "hi - 5.2"
  )

  expect_identical(
    format_value(NA, format = "xx.x", na_str = character()),
    "NA"
  )

  expect_identical(
    format_value(NA, format = "xx.x", na_str = NA_character_),
    "NA"
  )
})

test_that("sprintf formats work", {
  ## sprintf_format functionality
  myfun <- sprintf_format("hi there %1.4f")
  expect_true(is_valid_format(myfun))
  expect_identical(
    format_value(pi, format = myfun),
    "hi there 3.1416"
  )
})

test_that("labels and miscellany", {
  thing <- 5.1234
  expect_true(is.null(obj_label(thing)))
  obj_label(thing) <- "hi thing"
  expect_identical(obj_label(thing), "hi thing")
  expect_true(is.null(obj_format(thing)))
  obj_format(thing) <- "xx.x"
  expect_identical(
    format_value(thing, obj_format(thing)),
    "5.1"
  )

  ## labels

  x <- 15
  expect_identical(
    obj_label(with_label(x, "hi")),
    "hi"
  )

  mydf <- mtcars
  lbls <- paste("LBL: ", names(mydf))
  var_labels(mydf) <- lbls
  expect_identical(
    var_labels(mydf),
    setNames(
      lbls,
      names(mydf)
    )
  )

  mydf <- var_relabel(mydf, mpg = "New MPG")
  expect_identical(
    var_labels(mydf),
    c(mpg = "New MPG", setNames(
      lbls[-1],
      names(mydf)[-1]
    ))
  )

  expect_true(all(is.na(var_labels(var_labels_remove(mydf)))))
})

test_that("var_labels works in self-assignment with named values", {
  # regression test #262
  labels <- letters[1:5]
  var_labels(iris) <- labels

  old_iris <- iris
  var_labels(iris) <- var_labels(iris)
  testthat::expect_identical(old_iris, iris)
})

test_that("all valid format labels can be applied without error", {
  ## additional full smoke test of labels without output checking

  values2 <- c(values, 987)
  labs <- list_valid_format_labels()

  r1 <- vapply(
    labs[["1d"]],
    function(lb) {
      tmp <- format_value(values2[1], lb)
      TRUE
    }, NA
  )

  expect_true(all(r1))

  r2 <- vapply(
    labs[["2d"]],
    function(lb) {
      tmp <- format_value(values2[1:2], lb)
      TRUE
    }, NA
  )

  expect_true(all(r2))

  r3 <- vapply(
    labs[["3d"]],
    function(lb) {
      tmp <- format_value(values2, lb)
      TRUE
    }, NA
  )

  expect_true(all(r3))

  expect_identical(
    var_labels(data.frame()),
    character()
  )
})

## silly coverage things
expect_identical(padstr("hi", 4, "center"), " hi ")
expect_identical(padstr("hi", 4, "left"), "hi  ")
expect_identical(padstr("hi", 4, "right"), "  hi")
expect_identical(padstr(NA, 4, "center"), "<NA>")

expect_error(padstr(c("hi", "lo"), 5))
expect_error(padstr(5, "hi"))

expect_identical(
  spans_to_viscell(c(2, 2, 2, 2, 1, 3, 3, 3)),
  c(TRUE, FALSE, TRUE, FALSE, TRUE, TRUE, FALSE, FALSE)
)

expect_equal(nlines(character()), 0)

expect_error(page_dim("wakawakawaka"))

## XXX this is a very stupid test that has NO VALUE
stupidobj <- NA_real_
obj_na_str(stupidobj) <- "wat"
obj_format(stupidobj) <- "xx.x"
expect_silent(obj_align(stupidobj) <- "left") # setter for ANY align
expect_identical(
  format_value(stupidobj, format = obj_format(stupidobj), na_str = obj_na_str(stupidobj)),
  "wat"
)
expect_identical(obj_align(stupidobj), "left") # getter for ANY align

## XXX I'm not sure if we use this functionality anywhere
## and as I note in the code implementing it its dangerous and I'm
## not convinced we want it. Remove this test once we learn our lesson
## and remove the list method
mylst <- list("hi", c("there\nyou", "person", "ahoy"))
expect_equal(nlines(mylst), 5)
expect_equal(nlines(list()), 0)

## testing mf_* roundtrip

dfmf <- basic_matrix_form(mtcars)

dfmf_wrong <- dfmf

mf_nrheader(dfmf_wrong) <- 2
expect_equal(mf_nrheader(dfmf_wrong), 2)
mf_nrheader(dfmf_wrong) <- 1
mf_rfnotes(dfmf_wrong) <- c("silly", "stuff")
expect_identical(mf_rfnotes(dfmf_wrong), c("silly", "stuff"))

## test indent to big breakage
## note this is a *very* artificial example and I'm not sure how much
## value it has beyodn increasing coverage
cwths <- propose_column_widths(dfmf_wrong)
cwths[1] <- 10
dfmf_wrong$indent_size <- 15
mf_rinfo(dfmf_wrong)$indent <- 1L
expect_error(toString(dfmf_wrong, widths = cwths))
## annoying direct constructor calls to ensure full coverage

strs <- matrix(
  byrow = TRUE, ncol = 2,
  c(
    "lab1", "lab2",
    "spn_val", "spn_val"
  )
)

spans <- matrix(
  byrow = TRUE, ncol = 2,
  c(
    1, 1,
    2, 2
  )
)

aligns <- matrix(byrow = TRUE, ncol = 2, "center")
fmts <- matrix(byrow = TRUE, ncol = 2, "xx")

rinfo <- pagdfrow(nm = "row", lab = "row", rnum = 1, pth = "row", extent = 1, rclass = "silly")

mpf <- MatrixPrintForm(
  strings = strs, spans = spans, aligns = aligns,
  formats = fmts, row_info = rinfo,
  nlines_header = 1, nrow_header = 1, has_topleft = FALSE
)

expect_equal(length(grep("spn_val", toString(mpf))), 1L)

### Decimal Alignment Testing ================
test_that("error when widths are < than decimal aligned values", {
  df_error <- basic_matrix_form(mtcars)
  df_error$aligns[, -c(1)] <- "dec_left"

  expect_error(
    toString(df_error, widths = c(25, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4)),
    paste0(
      "Inserted width\\(s\\) for column\\(s\\) disp \\(-1\\), wt \\(-1\\), ",
      "qsec \\(-1\\) is\\(are\\) not wide enough for the desired alignment."
    )
  )
})

test_that("padstr works with dec_left", {
  bmf <- basic_matrix_form(mtcars[1:4, c(1, 6)])
  bmf$aligns[-1, -c(1)] <- "dec_left"
  cw <- propose_column_widths(bmf) + 5

  result <- strsplit(toString(bmf, widths = cw, hsep = "-"), "\\n")[[1]]
  result_no_cw <- strsplit(toString(bmf, hsep = "-"), "\\n")[[1]]

  nc_res <- sapply(result, nchar, USE.NAMES = FALSE)
  nc_res_ncw <- sapply(result_no_cw, nchar, USE.NAMES = FALSE)

  expect_equal(nc_res - 15, nc_res_ncw)

  expected <- c(
    "                 mpg     wt  ",
    "-----------------------------",
    "Mazda RX4        21     2.62 ",
    "Mazda RX4 Wag    21     2.875",
    "Datsun 710       22.8   2.32 ",
    "Hornet 4 Drive   21.4   3.215"
  )
  expect_identical(result_no_cw, expected)
})

test_that("padstr works with dec_right", {
  bmf <- basic_matrix_form(mtcars[1:4, c(1, 6)])
  bmf$aligns[-1, -c(1)] <- "dec_right"
  result <- strsplit(toString(bmf, hsep = "-"), "\\n")[[1]]
  expected <- c(
    "                 mpg     wt  ",
    "-----------------------------",
    "Mazda RX4        21     2.62 ",
    "Mazda RX4 Wag    21     2.875",
    "Datsun 710       22.8   2.32 ",
    "Hornet 4 Drive   21.4   3.215"
  )
  expect_identical(result, expected)
})

test_that("padstr works with decimal", {
  bmf <- basic_matrix_form(mtcars[1:4, c(1, 6)])
  bmf$aligns[-1, -c(1)] <- "decimal"
  result <- strsplit(toString(bmf, hsep = "-"), "\\n")[[1]]
  expected <- c(
    "                 mpg     wt  ",
    "-----------------------------",
    "Mazda RX4        21     2.62 ",
    "Mazda RX4 Wag    21     2.875",
    "Datsun 710       22.8   2.32 ",
    "Hornet 4 Drive   21.4   3.215"
  )
  expect_identical(result, expected)
})

test_that("decimal alignments work when there are numbers but no decimal places", {
  bmf <- basic_matrix_form(mtcars[1:2, c(1, 6)])

  bmf2 <- bmf

  mf_aligns(bmf)[2:3, 2] <- "dec_right"
  mf_aligns(bmf2)[2:3, 2] <- "right"
  expect_identical(toString(bmf), toString(bmf2))


  mf_aligns(bmf)[2:3, 2] <- "decimal"
  mf_aligns(bmf2)[2:3, 2] <- "center"
  expect_identical(toString(bmf), toString(bmf2))

  mf_aligns(bmf)[2:3, 2] <- "dec_left"
  mf_aligns(bmf2)[2:3, 2] <- "left"
  expect_identical(toString(bmf), toString(bmf2))
})

test_that("behavior of decimal alignments on non-numbers", {
  ## XXX This may be converted into an error in the future but currently we don't
  ## have the ability to do that.

  bmf <- basic_matrix_form(mtcars[1:4, c(1, 6)])
  mf_strings(bmf)[-c(1, 2), 2] <- letters[1:3]
  bmf2 <- bmf

  mf_aligns(bmf)[-1, 2] <- "decimal"
  mf_aligns(bmf2)[-1, 2] <- "center"
  expect_identical(toString(bmf), toString(bmf2))

  mf_aligns(bmf)[-1, 2] <- "dec_left"
  mf_aligns(bmf2)[-1, 2] <- "left"
  expect_identical(toString(bmf), toString(bmf2))

  mf_aligns(bmf)[-1, 2] <- "dec_right"
  mf_aligns(bmf2)[-1, 2] <- "right"
  expect_identical(toString(bmf), toString(bmf2))

  ## handles periods in string values sanely
  bmf3 <- bmf
  mf_strings(bmf3)[2, 3] <- "haha sentence."
  bmf4 <- bmf3

  mf_aligns(bmf3)[-1, 2] <- "decimal"
  mf_aligns(bmf4)[-1, 2] <- "center"
  ## have to pass it propose_column_widths cause manually modifying
  ## the string matrix doesn't update the cached default col widths
  expect_identical(
    toString(bmf3, propose_column_widths(bmf3)),
    toString(bmf4, propose_column_widths(bmf4))
  )
})

test_that("Decimal alignment: a specific case with larger widths", {
  hard_c <- c(12345.6, 0.235678, 6.7, 9.26, 1, 11)
  lhc <- length(hard_c)
  bmf <- basic_matrix_form(mtcars[1:lhc, c(1, 6)])
  cw0 <- propose_column_widths(bmf)
  bmf$strings[2:c(lhc + 1), 2] <- as.character(hard_c)
  bmf$strings[2:c(lhc + 1), 3] <- paste0(hard_c, "%")
  bmf$formats[2:c(lhc + 1), 3] <- rep("xx%", lhc)

  # decimal
  bmf$aligns[, -1] <- "decimal"
  cw <- cw_err <- propose_column_widths(bmf)
  expect_equal(sum(cw - cw0), 16) # small check of increased colwidths
  cw_err[c(2, 3)] <- cw[c(2, 3)] - 6
  cw[c(2, 3)] <- cw[c(2, 3)] + 6

  er_msg <- paste0(
    "Inserted width\\(s\\) for column\\(s\\) mpg \\(-6\\), wt \\(-6\\) ",
    "is\\(are\\) not wide enough for the desired alignment."
  )
  expect_error(toString(bmf, widths = cw_err), er_msg)

  res_dec <- strsplit(toString(bmf, widths = cw, hsep = "-"), "\\n")[[1]]

  expected <- c(
    "                           mpg                   wt         ",
    "------------------------------------------------------------",
    "Mazda RX4              12345.6              12345.6%        ",
    "Mazda RX4 Wag              0.235678             0.235678%   ",
    "Datsun 710                 6.7                  6.7%        ",
    "Hornet 4 Drive             9.26                 9.26%       ",
    "Hornet Sportabout          1                    1%          ",
    "Valiant                   11                   11%          "
  )
  expect_identical(res_dec, expected)

  # dec_right
  bmf$aligns[, -1] <- "dec_right"
  res_decr <- strsplit(toString(bmf, widths = cw, hsep = "-"), "\\n")[[1]]

  expected <- c(
    "                                   mpg                    wt",
    "------------------------------------------------------------",
    "Mazda RX4                 12345.6              12345.6%     ",
    "Mazda RX4 Wag                 0.235678             0.235678%",
    "Datsun 710                    6.7                  6.7%     ",
    "Hornet 4 Drive                9.26                 9.26%    ",
    "Hornet Sportabout             1                    1%       ",
    "Valiant                      11                   11%       "
  )
  expect_identical(res_decr, expected)

  # dec_left
  bmf$aligns[, -1] <- "dec_left"
  res_decl <- strsplit(toString(bmf, widths = cw, hsep = "-"), "\\n")[[1]]

  expected <- c(
    "                    mpg                  wt                 ",
    "------------------------------------------------------------",
    "Mazda RX4           12345.6              12345.6%           ",
    "Mazda RX4 Wag           0.235678             0.235678%      ",
    "Datsun 710              6.7                  6.7%           ",
    "Hornet 4 Drive          9.26                 9.26%          ",
    "Hornet Sportabout       1                    1%             ",
    "Valiant                11                   11%             "
  )
  expect_identical(res_decl, expected)

  # decimal mix
  bmf$aligns[-1, -1] <- rep(c("dec_left", "dec_right", "decimal"), each = 2)
  bmf$strings[-1, 1] <- bmf$aligns[-1, 2]

  res_decl <- strsplit(toString(bmf, widths = cw, hsep = "-"), "\\n")[[1]]

  expected <- c(
    "                    mpg                  wt                 ",
    "------------------------------------------------------------",
    "dec_left            12345.6              12345.6%           ",
    "dec_left                0.235678             0.235678%      ",
    "dec_right                     6.7                  6.7%     ",
    "dec_right                     9.26                 9.26%    ",
    "decimal                    1                    1%          ",
    "decimal                   11                   11%          "
  )
  expect_identical(res_decl, expected)
})

test_that("All supported 1d format cases of decimal alignment", {
  hard_c_formats <- list_valid_format_labels()$`1d`
  hard_c <- sapply(hard_c_formats, gsub, pattern = "x", replacement = "1")
  lhc <- length(hard_c)
  reduced_df <- mtcars[seq_len(lhc), c(1, 6, 7)]
  rownames(reduced_df) <- letters[seq_len(lhc)]
  bmf <- basic_matrix_form(reduced_df)
  cw <- propose_column_widths(bmf)
  bmf$strings[2:c(lhc + 1), seq(2, 3)] <- as.character(hard_c)
  bmf$formats[2:c(lhc + 1), seq(2, 3)] <- hard_c

  # decimal
  set.seed(1)
  bmf$aligns[, 2] <- "decimal"
  sample_list_aligns <- sample(list_valid_aligns(),
    size = nrow(bmf$aligns),
    replace = TRUE
  )
  bmf$strings[, 4] <- bmf$aligns[, 3] <- sample_list_aligns

  expect_error(cw <- propose_column_widths(bmf), regexp = "*1.1111 | (<0.0001)*")
  notallowed <- grep("1.1111 | (<0.0001)", bmf$strings[, 2], fixed = TRUE)
  bmf$aligns[notallowed, c(2, 3)] <- "center"
  cw <- propose_column_widths(bmf)
  cw[3] <- cw[3] + 4
  res_dec <- strsplit(toString(bmf, widths = cw, hsep = "-"), "\\n")[[1]]

  expected <- c(
    "           mpg           wt                         left   ",
    "-----------------------------------------------------------",
    "a          11                     11               decimal ",
    "b          11.           11.                        left   ",
    "c          11.1                            11.1     right  ",
    "d          11.11                        11.11     dec_right",
    "e          11.111                11.111            center  ",
    "f          11.1111          11.1111               dec_left ",
    "g          11%                              11%     right  ",
    "h          11.%                   11.%             center  ",
    "i          11.1%                 11.1%             center  ",
    "j          11.11%        11.11%                     left   ",
    "k          11.111%                      11.111%   dec_right",
    "l       (N=11)                       (N=11)       dec_right",
    "m        N=11                              N=11     right  ",
    "n        >999.9           >999.9                  dec_left ",
    "o        >999.99          >999.99                 dec_left ",
    "p   1.1111 | (<0.0001)     1.1111 | (<0.0001)       right  "
  )
  expect_identical(res_dec, expected)
})

test_that("decimal alignment disallows scientific notation", {
  reduced_df <- mtcars[seq_len(2), seq_len(2)]
  rownames(reduced_df) <- letters[seq_len(2)]
  bmf <- basic_matrix_form(reduced_df)

  bmf$strings[c(2, 3), 3] <- c(as.character(100000), as.character(0.00001))
  bmf$aligns[seq(2, 3), seq(2, 3)] <- "decimal"
  expect_error(toString(bmf), "formatC")

  bmf$strings[c(2, 3), 3] <- c(NA, as.character(0.001)) # NA does not interfere
  mf_col_widths(bmf) <- c(1, 3, 5)
  expect_silent(toString(bmf))

  bmf$strings[c(2, 3), 3] <- c("NE", as.character(0.001)) # NE does not interfere
  mf_col_widths(bmf) <- c(1, 3, 5)
  expect_silent(toString(bmf))
})

test_that("All 2d cases for decimal alignment", {
  formats2d <- list_valid_format_labels()$`2d`
  hard_c <- sapply(formats2d, gsub, pattern = "x", replacement = "1")
  reduced_df <- mtcars[seq_along(hard_c), c(1, 6)]
  rownames(reduced_df) <- formats2d
  colnames(reduced_df) <- c("dec_left", "decimal")
  bmf <- basic_matrix_form(reduced_df)
  bmf$strings[seq(2, length(hard_c) + 1), seq(2, 3)] <- as.character(hard_c)
  bmf$formats[seq(2, length(hard_c) + 1), seq(2, 3)] <- hard_c

  bmf$aligns[, 2] <- "decimal"
  bmf$aligns[, 3] <- "dec_right"
  bmf$col_widths <- NULL
  expect_error(
    res_dec <- strsplit(toString(bmf, hsep = "-"), "\\n")[[1]],
    regexp = "*first 3 selected from column dec_left*"
  )

  # expected <- c(
  #   "                          dec_left                     decimal",
  #   "--------------------------------------------------------------",
  #   "xx / xx                11 / 11               11 / 11          ",
  #   "xx. / xx.              11. / 11.             11. / 11.        ",
  #   "xx.x / xx.x            11.1 / 11.1           11.1 / 11.1      ",
  #   "xx.xx / xx.xx          11.11 / 11.11         11.11 / 11.11    ",
  #   "xx.xxx / xx.xxx        11.111 / 11.111       11.111 / 11.111  ",
  #   "N=xx (xx%)           N=11 (11%)            N=11 (11%)         ",
  #   "xx (xx%)               11 (11%)              11 (11%)         ",
  #   "xx (xx.%)              11 (11.%)             11 (11.%)        ",
  #   "xx (xx.x%)             11 (11.1%)            11 (11.1%)       ",
  #   "xx (xx.xx%)            11 (11.11%)           11 (11.11%)      ",
  #   "xx. (xx.%)             11. (11.%)            11. (11.%)       ",
  #   "xx.x (xx.x%)           11.1 (11.1%)          11.1 (11.1%)     ",
  #   "xx.xx (xx.xx%)         11.11 (11.11%)        11.11 (11.11%)   ",
  #   "(xx, xx)              (11, 11)              (11, 11)          ",
  #   "(xx., xx.)            (11., 11.)            (11., 11.)        ",
  #   "(xx.x, xx.x)          (11.1, 11.1)          (11.1, 11.1)      ",
  #   "(xx.xx, xx.xx)        (11.11, 11.11)        (11.11, 11.11)    ",
  #   "(xx.xxx, xx.xxx)      (11.111, 11.111)      (11.111, 11.111)  ",
  #   "(xx.xxxx, xx.xxxx)    (11.1111, 11.1111)    (11.1111, 11.1111)",
  #   "xx - xx                11 - 11               11 - 11          ",
  #   "xx.x - xx.x            11.1 - 11.1           11.1 - 11.1      ",
  #   "xx.xx - xx.xx          11.11 - 11.11         11.11 - 11.11    ",
  #   "xx (xx)                11 (11)               11 (11)          ",
  #   "xx. (xx.)              11. (11.)             11. (11.)        ",
  #   "xx.x (xx.x)            11.1 (11.1)           11.1 (11.1)      ",
  #   "xx.xx (xx.xx)          11.11 (11.11)         11.11 (11.11)    ",
  #   "xx (xx.)               11 (11.)              11 (11.)         ",
  #   "xx (xx.x)              11 (11.1)             11 (11.1)        ",
  #   "xx (xx.xx)             11 (11.11)            11 (11.11)       ",
  #   "xx.x, xx.x             11.1, 11.1            11.1, 11.1       ",
  #   "xx.x to xx.x           11.1 to 11.1          11.1 to 11.1     "
  # )
  #
  # expect_identical(res_dec, expected)
})

# fmt_config -------------------------------------------------------------------
test_that("fmt_config works as expected", {
  x <- fmt_config()
  expect_identical(obj_format(x), NULL)
  expect_identical(obj_na_str(x), "NA")
  expect_identical(obj_align(x), "center")

  x <- fmt_config(format = "xx.xx", na_str = "<Missing>", align = "right")
  expect_identical(obj_format(x), "xx.xx")
  expect_identical(obj_na_str(x), "<Missing>")
  expect_identical(obj_align(x), "right")

  # Test setters
  expect_silent(obj_format(x) <- function() {})
  expect_silent(obj_na_str(x) <- "something wrong")
  expect_silent(obj_align(x) <- "something wrong")
})