assertions-file: Useful test related to files

In hadley/assertthat: Easy Pre and Post Assertions

Description

Useful test related to files

Usage

is.dir(path)

is.writeable(path)

is.readable(path)

has_extension(path, ext)

Arguments

path	a file path to examine
ext	extension to test for (has_extension only)

Examples

see_if(is.dir(1))

tmp <- tempfile()
see_if(file.exists(tmp))
see_if(is.dir(tmp))

writeLines("x", tmp)
see_if(file.exists(tmp))
see_if(is.dir(tmp))
see_if(is.writeable(tmp))
see_if(is.readable(tmp))
unlink(tmp)

see_if(is.readable(tmp))

hadley/assertthat documentation built on June 5, 2019, 2:02 p.m.