xref: /src/tests/fs/tmpfs/t_devices.sh

# $NetBSD: t_devices.sh,v 1.6 2024/04/28 07:27:41 rillig Exp $
#
# Copyright (c) 2005, 2006, 2007, 2008 The NetBSD Foundation, Inc.
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atf_test_case basic
basic_head() {
	atf_set "descr" "Tests that special devices work"
	atf_set "require.user" "root"
}
basic_body() {
	test_mount

	umask 022

	atf_check -s exit:0 -o ignore -e ignore /dev/MAKEDEV std
	atf_check -s exit:0 -o empty -e empty test -e zero
	atf_check -s exit:0 -o empty -e empty test -e null

	echo "Reading from the 'zero' character device"
	atf_check -s exit:0 -o ignore -e ignore dd if=zero of=a bs=10k count=1
	[ $(md5 a | cut -d ' ' -f 4) = 1276481102f218c981e0324180bafd9f ] || \
	    atf_fail "Data read is invalid"

	echo "Writing to the 'null' device"
	echo foo >null
	eval $(stat -s null)
	[ ${st_size} -eq 0 ] || atf_fail "Invalid size for device"

	test_unmount
}

atf_init_test_cases() {
	. $(atf_get_srcdir)/../h_funcs.subr
	. $(atf_get_srcdir)/h_funcs.subr

	atf_add_test_case basic
}