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#!/usr/bin/env bash
# Tests lib/filesystem.nix
# Run:
# [nixpkgs]$ lib/tests/filesystem.sh
# or:
# [nixpkgs]$ nix-build lib/tests/release.nix
set -euo pipefail
shopt -s inherit_errexit
# Use
# || die
die( ) {
echo >& 2 "test case failed: " " $@ "
exit 1
}
if test -n " ${ TEST_LIB :- } " ; then
NIX_PATH = nixpkgs = " $( dirname " $TEST_LIB " ) "
else
NIX_PATH = nixpkgs = " $( cd " $( dirname " ${ BASH_SOURCE [0] } " ) /../.. " ; pwd ) "
fi
export NIX_PATH
work = " $( mktemp -d) "
clean_up( ) {
rm -rf " $work "
}
trap clean_up EXIT
cd " $work "
mkdir directory
touch regular
ln -s target symlink
mkfifo fifo
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expectSuccess( ) {
local expr = $1
local expectedResultRegex = $2
if ! result = $( nix-instantiate --eval --strict --json \
--expr " with (import <nixpkgs/lib>).filesystem; $expr " ) ; then
die " $expr failed to evaluate, but it was expected to succeed "
fi
if [ [ ! " $result " = ~ $expectedResultRegex ] ] ; then
die " $expr == $result , but $expectedResultRegex was expected "
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fi
}
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expectFailure( ) {
local expr = $1
local expectedErrorRegex = $2
if result = $( nix-instantiate --eval --strict --json 2>" $work /stderr " \
--expr " with (import <nixpkgs/lib>).filesystem; $expr " ) ; then
die " $expr evaluated successfully to $result , but it was expected to fail "
fi
if [ [ ! " $( <" $work /stderr " ) " = ~ $expectedErrorRegex ] ] ; then
die " Error was $( <" $work /stderr " ) , but $expectedErrorRegex was expected "
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fi
}
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expectSuccess "pathType /." '"directory"'
expectSuccess " pathType $PWD /directory " '"directory"'
expectSuccess " pathType $PWD /regular " '"regular"'
expectSuccess " pathType $PWD /symlink " '"symlink"'
expectSuccess " pathType $PWD /fifo " '"unknown"'
# Different errors depending on whether the builtins.readFilePath primop is available or not
expectFailure " pathType $PWD /non-existent " " error: (evaluation aborted with the following error message: 'lib.filesystem.pathType: Path $PWD /non-existent does not exist.'|getting status of ' $PWD /non-existent': No such file or directory) "
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expectSuccess "pathIsDirectory /." "true"
expectSuccess " pathIsDirectory $PWD /directory " "true"
expectSuccess " pathIsDirectory $PWD /regular " "false"
expectSuccess " pathIsDirectory $PWD /symlink " "false"
expectSuccess " pathIsDirectory $PWD /fifo " "false"
expectSuccess " pathIsDirectory $PWD /non-existent " "false"
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expectSuccess "pathIsRegularFile /." "false"
expectSuccess " pathIsRegularFile $PWD /directory " "false"
expectSuccess " pathIsRegularFile $PWD /regular " "true"
expectSuccess " pathIsRegularFile $PWD /symlink " "false"
expectSuccess " pathIsRegularFile $PWD /fifo " "false"
expectSuccess " pathIsRegularFile $PWD /non-existent " "false"
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echo >& 2 tests ok