assert_all_are_empty_files

From assertive.files v0.0-2 by Richard Cotton

Is a file too big or small?

Checks to see if a file is within a given size range.

Usage

assert_all_are_empty_files(x, severity = getOption("assertive.severity", "stop"))
assert_any_are_empty_files(x, severity = getOption("assertive.severity", "stop"))
assert_all_are_non_empty_files(x, severity = getOption("assertive.severity", "stop"))
assert_any_are_non_empty_files(x, severity = getOption("assertive.severity", "stop"))
assert_all_file_sizes_are_in_range(x, lower = 0, upper = Inf, lower_is_strict = FALSE, upper_is_strict = FALSE, na_ignore = FALSE, severity = getOption("assertive.severity", "stop"))
assert_any_file_sizes_are_in_range(x, lower = 0, upper = Inf, lower_is_strict = FALSE, upper_is_strict = FALSE, severity = getOption("assertive.severity", "stop"))
is_empty_file(x, .xname = get_name_in_parent(x))
is_non_empty_file(x, .xname = get_name_in_parent(x))
is_file_size_in_range(x, lower = 0, upper = Inf, lower_is_strict = FALSE, upper_is_strict = FALSE, .xname = get_name_in_parent(x))

Arguments

x: Input to check.
severity: How severe should the consequences of the assertion be? Either "stop", "warning", "message", or "none".
lower: Smallest file size allowed, in bytes.
upper: Largest file size allowed, in bytes.
lower_is_strict: If TRUE, the lower bound is open (strict) otherwise it is closed.
upper_is_strict: If TRUE, the upper bound is open (strict) otherwise it is closed.
na_ignore: A logical value. If FALSE, NA values cause an error; otherwise they do not. Like na.rm in many stats package functions, except that the position of the failing values does not change.
.xname: Not intended to be used directly.

Value

is_empty_file wraps file.info, retuning TRUE when the input is a file that exists with size zero. assert_*_are_empty_files return nothing but throws an error if is_empty_file returns FALSE.

Examples

library(assertive.files)

tf <- tempfile()
file.create(tf)
is_empty_file(tf)
cat("some stuff", file = tf)
is_non_empty_file(tf)
assertive.base::dont_stop(assert_all_file_sizes_are_in_range(tf, lower = 100))
unlink(tf)

Documentation reproduced from package assertive.files, version 0.0-2, License: GPL (>= 3)

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