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# Simpler expectations for data frames.
expect_n_columns <- function(object, n) {
stopifnot(is.numeric(n), length(n) == 1)
act <- testthat::quasi_label(rlang::enquo(object))
act$n <- length(act$val)
testthat::expect(act$n == n, sprintf(
"%s has %i columns, not %i columns.",
act$lab, act$n, n
))
invisible(act$val)
}
expect_n_rows <- function(object, n) {
stopifnot(is.numeric(n), length(n) == 1)
act <- testthat::quasi_label(rlang::enquo(object))
act$n <- nrow(act$val)
testthat::expect(
act$n == n,
sprintf("%s has %i rows, not %i rows", act$lab, act$n, n)
)
invisible(act$val)
}
expect_NA <- function(object) {
act <- testthat::quasi_label(rlang::enquo(object))
testthat::expect(is.na(act$val), sprintf("%s is not NA", act$lab))
invisible(act$val)
}
expect_print_matches_file <- function(object,
filename,
skip_on_windows = getOption(
"skimr_skip_on_windows",
TRUE
),
skip_on_cran = getOption(
"skimr_skip_on_cran",
TRUE
),
width = 100,
update = getOption(
"skimr_update_print",
FALSE
),
skimr_table_header_width = NULL,
...) {
if (skip_on_windows) testthat::skip_on_os("windows")
if (skip_on_windows) testthat::skip_if_not(l10n_info()$`UTF-8`)
if (skip_on_cran) testthat::skip_on_cran()
withr::with_options(list(
crayon.enabled = FALSE,
width = width,
skimr_table_header_width = skimr_table_header_width
), {
testthat::expect_known_output(
print(object, ...),
filename,
update = update,
width = width
)
})
}
expect_matches_file <- function(object,
file,
update = getOption(
"skimr_update_print",
FALSE
),
skip_on_windows = getOption(
"skimr_skip_on_windows",
TRUE
),
skip_on_cran = getOption(
"skimr_skip_on_cran",
TRUE
),
width = 100,
...) {
if (skip_on_windows) testthat::skip_on_os("windows")
if (skip_on_windows) testthat::skip_if_not(l10n_info()$`UTF-8`)
if (skip_on_cran) testthat::skip_on_cran()
withr::local_options(list(crayon.enabled = FALSE, width = width))
act <- testthat::quasi_label(rlang::enquo(object), NULL)
if (!file.exists(file)) {
warning("Creating reference value", call. = FALSE)
writeLines(object, file)
testthat::succeed()
} else {
ref_val <- paste0(readLines(file), collapse = "\n")
comp <- testthat::compare(as.character(act$val), ref_val, ...)
if (update && !comp$equal) {
writeLines(act$val, file)
}
testthat::expect(
comp$equal,
sprintf(
"%s has changed from known value recorded in %s.\n%s",
act$lab, encodeString(file, quote = "'"), comp$message
),
info = NULL
)
}
invisible(act$value)
}
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