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checkmate (version 1.8.1)

checkAccess: Check file system access rights

Description

Check file system access rights

Usage

checkAccess(x, access = "")


check_access(x, access = "")


assertAccess(x, access = "", .var.name = vname(x), add = NULL)


assert_access(x, access = "", .var.name = vname(x), add = NULL)


testAccess(x, access = "")


test_access(x, access = "")


expect_access(x, access = "", info = NULL, label = vname(x))

Arguments

x
[any] Object to check.
access
[character(1)] Single string containing possible characters ‘r’, ‘w’ and ‘x’ to force a check for read, write or execute access rights, respectively. Write and executable rights are not checked on Windows.
.var.name
[character(1)] Name of the checked object to print in assertions. Defaults to the heuristic implemented in vname.
add
[AssertCollection] Collection to store assertion messages. See AssertCollection.
info
[character(1)] Extra information to be included in the message for the testthat reporter. See expect_that.
label
[character(1)] Name of the checked object to print in messages. Defaults to the heuristic implemented in vname.

Value

Depending on the function prefix: If the check is successful, the functions return TRUE. If the check is not successful, assertAccess/assert_access throws an error message, testAccess/test_access returns FALSE, and checkAccess returns a string with the error message. The function expect_access always returns an expectation.

See Also

Other filesystem: checkDirectoryExists, checkFileExists, checkPathForOutput

Examples

Run this code
# Is R's home directory readable?
testAccess(R.home(), "r")

# Is R's home directory writeable?
testAccess(R.home(), "w")

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