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split_decimal_3 <- function(x, sigfig = 3, ...) {
split_decimal(x, sigfig = sigfig, ...)
}
test_that("compute_rhs_digits() works", {
x <- c(NA, NaN, Inf, 0, 1, 100, 1e10, 0.001, 1e-14)
expect_equal(
compute_rhs_digits(x, 3),
c(0, 0, 0, 0, 0, 0, 0, 3, 14)
)
expect_equal(
compute_rhs_digits(x + 1e-8, 3),
c(0, 0, 0, 8, 2, 0, 0, 5, 10)
)
expect_equal(
compute_rhs_digits(x, 7),
c(0, 0, 0, 0, 0, 0, 0, 3, 14)
)
expect_equal(
compute_rhs_digits(x, 7 + 1e-8),
c(0, 0, 0, 0, 6, 4, 0, 9, 20)
)
})
test_that("compute_exp() returns NA if not relevant", {
x <- c(NA, NaN, Inf, 0, 1, 100, 0.001)
expect_equal(compute_exp(x, 6), c(NA, NA, NA, NA, 0, 2, -3))
})
test_that("compute_exp() respectis significant digits", {
x <- c(0.9, 0.99, 0.999, 0.99949, 0.9995, 0.99951, 0.9999, 0.99999, 0.999999)
expect_equal(compute_exp(x, 3), c(-1, -1, -1, -1, 0, 0, 0, 0, 0))
})
test_that("special values appear in LHS", {
x <- c(NA, NaN, Inf)
f <- split_decimal_3(x)
expect_equal(format_lhs(f), format(x, trim = TRUE))
})
test_that("all-positive values get nothing in neg", {
f <- split_decimal_3(c(0, Inf))
expect_equal(format_neg(f), c("", ""))
})
test_that("negative values get - in neg", {
f <- split_decimal_3(c(-Inf, Inf))
expect_equal(format_neg(f), c("-", ""))
})
test_that("trailing zeros removed if whole decimal fraction", {
f <- split_decimal_3(c(1.5, 0.5))
expect_equal(format_lhs(f), c("1", "0"))
expect_equal(format_rhs(f), c("5", "5"))
})
test_that("trailing zeros pad to sigfigs if data not shown", {
f <- split_decimal_3(c(1.5, 0.5) + 1e-6)
expect_equal(format_lhs(f), c("1", "0"))
expect_equal(format_rhs(f), c("50 ", "500"))
})
test_that("sigfigs split between lhs and rhs", {
x <- c(1.43, 10.43, 100.43)
f <- split_decimal_3(x)
expect_equal(format_lhs(f), as.character(trunc(x)))
expect_equal(format_rhs(f), c("43", "4 ", " "))
})
test_that("leading 0 added to rhs", {
f <- split_decimal_3(1.01)
expect_equal(format_lhs(f), "1")
expect_equal(format_rhs(f), "01")
})
test_that("values rounded up as expect", {
f <- split_decimal_3(c(18.9, 18.99))
expect_equal(format_lhs(f), c("18", "19"))
expect_equal(format_rhs(f), c("9", "0"))
})
test_that("values on LHS not rounded", {
f <- format_lhs(split_decimal(123456, 3))
expect_equal(f, "123456")
})
test_that("corner cases", {
expect_equal(format_lhs(split_decimal_3(numeric())), character())
})
test_that("output test", {
expect_snapshot({
pillar(add_special((10^(-3:4)) * c(-1, 1)))
pillar(add_special(1.23456 * 10^(-3:3)))
})
withr::with_options(
list(pillar.sigfig = 5),
expect_snapshot({
pillar(add_special((10^(c(-2:4, 0L))) * c(-1, 1)))
})
)
withr::with_options(
list(pillar.sigfig = 7),
expect_snapshot({
pillar(add_special((10^(0:-5)) * c(-1, 1)), width = 20)
})
)
expect_snapshot({
pillar(add_special((10^(4:-4)) + 1e-6), width = 20)
})
})
expect_decimal_width <- function(x) {
get_formatted_width <- function(x) {
get_max_extent(assemble_decimal(x))
}
expect_equal(
get_formatted_width(split_decimal(!!x, 3)),
!!get_width(split_decimal(x, 3))
)
}
test_that("width computation", {
expect_decimal_width(c(1, 10, 100))
expect_decimal_width(c(0, NA))
expect_decimal_width(c(1, NaN))
expect_decimal_width(c(-12, 3))
expect_decimal_width(c(-1, 23))
expect_decimal_width(c(1.01, 10.1))
expect_decimal_width(c(1.01, -10.1))
expect_decimal_width(c(NA_integer_, NA_integer_))
expect_decimal_width(c(1.234, 1.2345))
expect_decimal_width(c(1.2, -Inf))
expect_decimal_width(c(1, Inf))
})
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