osi-tools/test/osi-mount.bats

# Copyright (C) 2024  Umorpha Systems
# SPDX-License-Identifier: AGPL-3.0-or-later

bats_require_minimum_version 1.7.0
bats_load_library bats-support
bats_load_library bats-assert
bats_load_library bats-file

teardown() {
	if [ -n "${tmpdir:-}" ]; then
		temp_del "$tmpdir"
	fi
}

_sudo() {
	sudo ${TMPDIR:+TMPDIR="$TMPDIR"} "$@"
}

@test "osi-mount needs arguments" {
	LC_ALL=C run --separate-stderr osi-mount
	assert_failure 2
	assert_equal "$output" ''
	assert [ ${#stderr_lines[@]} -gt 1 ]
	assert_regex "${stderr_lines[-1]}" "^Try .*osi-mount --help' for more information\$"
}

@test "osi-mount --user" {
	tmpdir="$(temp_make)"

	truncate --size=100m "$tmpdir/tst.img"
	mkfs.ext4 "$tmpdir/tst.img"
	mkdir "$tmpdir/mnt"
	
	echo 'Checking that it uses the current directory...'
	run --separate-stderr _sudo osi-mount --user "$tmpdir/tst.img" "$tmpdir/mnt" pwd
	assert_success
	assert_equal "${output%$'\r'}" "$PWD"
	assert_equal "$stderr" ''

	echo 'Checking that it respects TMPDIR...'
	mkdir "$tmpdir/tmp"
	TMPDIR="$tmpdir/tmp" _sudo osi-mount --user "$tmpdir/tst.img" "$tmpdir/mnt" env >"$tmpdir/env.txt"
	act=$(grep ^TMPDIR= "$tmpdir/env.txt")
	assert_equal "${act%$'\r'}" "TMPDIR=$tmpdir/tmp"

	echo 'Checking that it can write outside of the mountpoint...'
	run --separate-stderr _sudo osi-mount --user "$tmpdir/tst.img" "$tmpdir/mnt" -- sh -c "echo foo>$tmpdir/x"
	assert_success
	assert_file_contains "$tmpdir/x" foo
	assert_file_owner "$USER" "$tmpdir/x"

	echo "Checking that it can't write inside of the mountpoint..."
	run --separate-stderr _sudo osi-mount --user "$tmpdir/tst.img" "$tmpdir/mnt" -- sh -c "echo bar>$tmpdir/mnt/y"
	assert_failure
}

@test "osi-mount --root" {
	tmpdir="$(temp_make)"

	truncate --size=100m "$tmpdir/tst.img"
	mkfs.ext4 "$tmpdir/tst.img"
	mkdir "$tmpdir/mnt"
	
	echo 'Checking that it uses the current directory...'
	run --separate-stderr _sudo osi-mount --root "$tmpdir/tst.img" "$tmpdir/mnt" pwd
	assert_success
	assert_equal "${output%$'\r'}" "$PWD"
	assert_equal "$stderr" ''

	echo 'Checking that it respects TMPDIR...'
	mkdir "$tmpdir/tmp"
	TMPDIR="$tmpdir/tmp" _sudo osi-mount --root "$tmpdir/tst.img" "$tmpdir/mnt" env >"$tmpdir/env.txt"
	cat -nv "$tmpdir/env.txt"
	act=$(grep ^TMPDIR= "$tmpdir/env.txt")
	assert_equal "${act%$'\r'}" "TMPDIR=$tmpdir/tmp"

	echo "Checking that it can't write outside of the mountpoint..."
	run --separate-stderr _sudo osi-mount --root "$tmpdir/tst.img" "$tmpdir/mnt" -- sh -c "echo foo>$tmpdir/x"
	if [ -f "$tmpdir/x" ]; then
		sudo rm -f -- "$tmpdir/x"
	fi
	assert_failure
	assert_file_not_exists "$tmpdir/x"

	echo 'Checking that it can write inside of the mountpoint...'
	run --separate-stderr _sudo osi-mount --root "$tmpdir/tst.img" "$tmpdir/mnt" -- sh -c "echo bar>$tmpdir/mnt/y"
	assert_success
	assert_file_not_exists "$tmpdir/mnt/y"
	run --separate-stderr _sudo osi-mount --user "$tmpdir/tst.img" "$tmpdir/mnt" -- cat "$tmpdir/mnt/y"
	assert_success
	assert_equal "${output%$'\r'}" 'bar'
}