Commit 8b155b6e authored by Michal Berger's avatar Michal Berger Committed by Tomasz Zawadzki
Browse files

test/dd: Add tests for POSIX flags 



Change-Id: I9cfc3ef5012ac125c1afdb26fdcb2d7ff4041e88
Signed-off-by: default avatarMichal Berger <michalx.berger@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3103


Community-CI: Mellanox Build Bot
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
parent 55f1698f

test/dd/dd.sh

+1 −0
Original line number Diff line number Diff line
@@ -7,3 +7,4 @@ source "$testdir/common.sh" 
nvmes=($(nvme_in_userspace))



run_test "spdk_dd_basic_rw" "$testdir/basic_rw.sh" "${nvmes[@]}"

run_test "spdk_dd_posix" "$testdir/posix.sh"

test/dd/posix.sh

0 → 100755
+98 −0
Original line number Diff line number Diff line 
#!/usr/bin/env bash

testdir=$(readlink -f "$(dirname "$0")")

rootdir=$(readlink -f "$testdir/../../")

source "$testdir/common.sh"



cleanup() {

	rm -f "$test_file0"{,.link}

	rm -f "$test_file1"{,.link}

}



append() {

	local dump0

	local dump1



	dump0=$(gen_bytes 32)

	dump1=$(gen_bytes 32)



	printf '%s' "$dump0" > "$test_file0"

	printf '%s' "$dump1" > "$test_file1"



	"${DD_APP[@]}" --if="$test_file0" --of="$test_file1" --oflag=append



	[[ $(< "$test_file1") == "${dump1}${dump0}" ]]

}



directory() {

	NOT "${DD_APP[@]}" --if="$test_file0" --iflag=directory --of="$test_file0"

	NOT "${DD_APP[@]}" --if="$test_file0" --of="$test_file0" --oflag=directory

}



nofollow() {

	local test_file0_link=$test_file0.link

	local test_file1_link=$test_file1.link



	ln -fs "$test_file0" "$test_file0_link"

	ln -fs "$test_file1" "$test_file1_link"



	NOT "${DD_APP[@]}" --if="$test_file0_link" --iflag=nofollow --of="$test_file1"

	NOT "${DD_APP[@]}" --if="$test_file0" --of="$test_file1_link" --oflag=nofollow



	# Do an extra step of checking if we actually can follow symlinks

	gen_bytes 512 > "$test_file0"



	"${DD_APP[@]}" --if="$test_file0_link" --of="$test_file1"

	[[ $(< "$test_file0") == "$(< "$test_file1")" ]]

}



noatime() {

	local atime_if

	local atime_of



	# It seems like spdk_dd doesn't update the atime in case 0 bytes are copied.

	# This differs from how standard dd works for instance

	gen_bytes 512 > "$test_file0"



	atime_if=$(stat --printf="%X" "$test_file0")

	atime_of=$(stat --printf="%X" "$test_file1")



	"${DD_APP[@]}" --if="$test_file0" --iflag=noatime --of="$test_file1"

	((atime_if == $(stat --printf="%X" "$test_file0")))

	((atime_of == $(stat --printf="%X" "$test_file1")))



	"${DD_APP[@]}" --if="$test_file0" --of="$test_file1"

	((atime_if < $(stat --printf="%X" "$test_file0")))

}



io() {

	local flags_ro flags_rw flag_ro flag_rw



	# O_NONBLOCK is actually a no-op, from a functional perspective, while

	# open()ing a regular file, but let's keep it just to test its usage.

	flags_ro=(direct nonblock)

	flags_rw=("${flags_ro[@]}" sync dsync)



	# simply check if data was correctly copied between files

	for flag_ro in "${flags_ro[@]}"; do

		gen_bytes 512 > "$test_file0"

		for flag_rw in "${flags_rw[@]}"; do

			"${DD_APP[@]}" \

				--if="$test_file0" \

				--iflag="$flag_ro" \

				--of="$test_file1" \

				--oflag="$flag_rw"

			[[ $(< "$test_file0") == "$(< "$test_file1")" ]]

		done

	done

}



trap "cleanup" EXIT



test_file0=$SPDK_TEST_STORAGE/dd.dump0

test_file1=$SPDK_TEST_STORAGE/dd.dump1



run_test "dd_flag_append" append

run_test "dd_flag_directory" directory

run_test "dd_flag_nofollow" nofollow

run_test "dd_flag_noatime" noatime

run_test "dd_flags_misc" io