t/t9802-git-p4-filetype.sh - jrn/git - Git at Google

 #!/bin/sh

 test_description='git p4 filetype tests'

 . ./lib-git-p4.sh

 test_expect_success 'start p4d' '
 	start_p4d
 '

 #
 # This series of tests checks newline handling  Both p4 and
 # git store newlines as \n, and have options to choose how
 # newlines appear in checked-out files.
 #
 test_expect_success 'p4 client newlines, unix' '
 	(
 		cd "$cli" &&
 		p4 client -o | sed "/LineEnd/s/:.*/:unix/" | p4 client -i &&
 		printf "unix\ncrlf\n" >f-unix &&
 		printf "unix\r\ncrlf\r\n" >f-unix-as-crlf &&
 		p4 add -t text f-unix &&
 		p4 submit -d f-unix &&

 		# LineEnd: unix; should be no change after sync
 		cp f-unix f-unix-orig &&
 		p4 sync -f &&
 		test_cmp f-unix-orig f-unix &&

 		# make sure stored in repo as unix newlines
 		# use sed to eat python-appended newline
 		p4 -G print //depot/f-unix | marshal_dump data 2 |\
 		    sed \$d >f-unix-p4-print &&
 		test_cmp f-unix-orig f-unix-p4-print &&

 		# switch to win, make sure lf -> crlf
 		p4 client -o | sed "/LineEnd/s/:.*/:win/" | p4 client -i &&
 		p4 sync -f &&
 		test_cmp f-unix-as-crlf f-unix
 	)
 '

 test_expect_success 'p4 client newlines, win' '
 	(
 		cd "$cli" &&
 		p4 client -o | sed "/LineEnd/s/:.*/:win/" | p4 client -i &&
 		printf "win\r\ncrlf\r\n" >f-win &&
 		printf "win\ncrlf\n" >f-win-as-lf &&
 		p4 add -t text f-win &&
 		p4 submit -d f-win &&

 		# LineEnd: win; should be no change after sync
 		cp f-win f-win-orig &&
 		p4 sync -f &&
 		test_cmp f-win-orig f-win &&

 		# make sure stored in repo as unix newlines
 		# use sed to eat python-appened newline
 		p4 -G print //depot/f-win | marshal_dump data 2 |\
 		    sed \$d >f-win-p4-print &&
 		test_cmp f-win-as-lf f-win-p4-print &&

 		# switch to unix, make sure lf -> crlf
 		p4 client -o | sed "/LineEnd/s/:.*/:unix/" | p4 client -i &&
 		p4 sync -f &&
 		test_cmp f-win-as-lf f-win
 	)
 '

 test_expect_success 'ensure blobs store only lf newlines' '
 	test_when_finished cleanup_git &&
 	(
 		cd "$git" &&
 		git init &&
 		git p4 sync //depot@all &&

 		# verify the files in .git are stored only with newlines
 		o=$(git ls-tree p4/master -- f-unix | cut -f1 | cut -d\  -f3) &&
 		git cat-file blob $o >f-unix-blob &&
 		test_cmp "$cli"/f-unix-orig f-unix-blob &&

 		o=$(git ls-tree p4/master -- f-win | cut -f1 | cut -d\  -f3) &&
 		git cat-file blob $o >f-win-blob &&
 		test_cmp "$cli"/f-win-as-lf f-win-blob &&

 		rm f-unix-blob f-win-blob
 	)
 '

 test_expect_success 'gitattributes setting eol=lf produces lf newlines' '
 	test_when_finished cleanup_git &&
 	(
 		# checkout the files and make sure core.eol works as planned
 		cd "$git" &&
 		git init &&
 		echo "* eol=lf" >.gitattributes &&
 		git p4 sync //depot@all &&
 		git checkout -b master p4/master &&
 		test_cmp "$cli"/f-unix-orig f-unix &&
 		test_cmp "$cli"/f-win-as-lf f-win
 	)
 '

 test_expect_success 'gitattributes setting eol=crlf produces crlf newlines' '
 	test_when_finished cleanup_git &&
 	(
 		# checkout the files and make sure core.eol works as planned
 		cd "$git" &&
 		git init &&
 		echo "* eol=crlf" >.gitattributes &&
 		git p4 sync //depot@all &&
 		git checkout -b master p4/master &&
 		test_cmp "$cli"/f-unix-as-crlf f-unix &&
 		test_cmp "$cli"/f-win-orig f-win
 	)
 '

 test_expect_success 'crlf cleanup' '
 	(
 		cd "$cli" &&
 		rm f-unix-orig f-unix-as-crlf &&
 		rm f-win-orig f-win-as-lf &&
 		p4 client -o | sed "/LineEnd/s/:.*/:unix/" | p4 client -i &&
 		p4 sync -f
 	)
 '

 test_expect_success 'utf-16 file create' '
 	(
 		cd "$cli" &&

 		# p4 saves this verbatim
 		printf "three\nline\ntext\n" >f-ascii &&
 		p4 add -t text f-ascii &&

 		# p4 adds \377\376 header
 		cp f-ascii f-ascii-as-utf16 &&
 		p4 add -t utf16 f-ascii-as-utf16 &&

 		# p4 saves this exactly as iconv produced it
 		printf "three\nline\ntext\n" | iconv -f ascii -t utf-16 >f-utf16 &&
 		p4 add -t utf16 f-utf16 &&

 		# this also is unchanged
 		cp f-utf16 f-utf16-as-text &&
 		p4 add -t text f-utf16-as-text &&

 		p4 submit -d "f files" &&

 		# force update of client files
 		p4 sync -f
 	)
 '

 test_expect_success 'utf-16 file test' '
 	test_when_finished cleanup_git &&
 	git p4 clone --dest="$git" //depot@all &&
 	(
 		cd "$git" &&

 		test_cmp "$cli/f-ascii" f-ascii &&
 		test_cmp "$cli/f-ascii-as-utf16" f-ascii-as-utf16 &&
 		test_cmp "$cli/f-utf16" f-utf16 &&
 		test_cmp "$cli/f-utf16-as-text" f-utf16-as-text
 	)
 '

 test_expect_success 'keyword file create' '
 	(
 		cd "$cli" &&

 		printf "id\n\$Id\$\n\$Author\$\ntext\n" >k-text-k &&
 		p4 add -t text+k k-text-k &&

 		cp k-text-k k-text-ko &&
 		p4 add -t text+ko k-text-ko &&

 		iconv -f ascii -t utf-16 <k-text-k >k-utf16-k &&
 		p4 add -t utf16+k k-utf16-k &&

 		cp k-utf16-k k-utf16-ko &&
 		p4 add -t utf16+ko k-utf16-ko &&

 		p4 submit -d "k files" &&
 		p4 sync -f
 	)
 '

 build_smush() {
 	cat >k_smush.py <<-\EOF &&
 	import re, sys
 	sys.stdout.write(re.sub(r'(?i)\$(Id|Header|Author|Date|DateTime|Change|File|Revision):[^$]*\$', r'$\1$', sys.stdin.read()))
 	EOF
 	cat >ko_smush.py <<-\EOF
 	import re, sys
 	sys.stdout.write(re.sub(r'(?i)\$(Id|Header):[^$]*\$', r'$\1$', sys.stdin.read()))
 	EOF
 }

 test_expect_success 'keyword file test' '
 	build_smush &&
 	test_when_finished rm -f k_smush.py ko_smush.py &&
 	test_when_finished cleanup_git &&
 	git p4 clone --dest="$git" //depot@all &&
 	(
 		cd "$git" &&

 		# text, ensure unexpanded
 		"$PYTHON_PATH" "$TRASH_DIRECTORY/k_smush.py" <"$cli/k-text-k" >cli-k-text-k-smush &&
 		test_cmp cli-k-text-k-smush k-text-k &&
 		"$PYTHON_PATH" "$TRASH_DIRECTORY/ko_smush.py" <"$cli/k-text-ko" >cli-k-text-ko-smush &&
 		test_cmp cli-k-text-ko-smush k-text-ko &&

 		# utf16, even though p4 expands keywords, git p4 does not
 		# try to undo that
 		test_cmp "$cli/k-utf16-k" k-utf16-k &&
 		test_cmp "$cli/k-utf16-ko" k-utf16-ko
 	)
 '

 build_gendouble() {
 	cat >gendouble.py <<-\EOF
 	import sys
 	import struct

 	s = struct.pack(b">LL18s",
 			0x00051607,  # AppleDouble
 			0x00020000,  # version 2
 			b""          # pad to 26 bytes
 	)
 	getattr(sys.stdout, 'buffer', sys.stdout).write(s)
 	EOF
 }

 test_expect_success 'ignore apple' '
 	test_when_finished rm -f gendouble.py &&
 	build_gendouble &&
 	(
 		cd "$cli" &&
 		test-tool genrandom apple 1024 >double.png &&
 		"$PYTHON_PATH" "$TRASH_DIRECTORY/gendouble.py" >%double.png &&
 		p4 add -t apple double.png &&
 		p4 submit -d appledouble
 	) &&
 	test_when_finished cleanup_git &&
 	git p4 clone --dest="$git" //depot@all &&
 	(
 		cd "$git" &&
 		test ! -f double.png
 	)
 '

 test_expect_success SYMLINKS 'create p4 symlink' '
 	cd "$cli" &&
 	ln -s symlink-target symlink &&
 	p4 add symlink &&
 	p4 submit -d "add symlink"
 '

 test_expect_success SYMLINKS 'ensure p4 symlink parsed correctly' '
 	test_when_finished cleanup_git &&
 	git p4 clone --dest="$git" //depot@all &&
 	(
 		cd "$git" &&
 		test -L symlink &&
 		test $(test_readlink symlink) = symlink-target
 	)
 '

 test_expect_success SYMLINKS 'empty symlink target' '
 	(
 		# first create the file as a file
 		cd "$cli" &&
 		>empty-symlink &&
 		p4 add empty-symlink &&
 		p4 submit -d "add empty-symlink as a file"
 	) &&
 	(
 		# now change it to be a symlink to "target1"
 		cd "$cli" &&
 		p4 edit empty-symlink &&
 		p4 reopen -t symlink empty-symlink &&
 		rm empty-symlink &&
 		ln -s target1 empty-symlink &&
 		p4 add empty-symlink &&
 		p4 submit -d "make empty-symlink point to target1"
 	) &&
 	(
 		# Hack the p4 depot to make the symlink point to nothing;
 		# this should not happen in reality, but shows up
 		# in p4 repos in the wild.
 		#
 		# The sed expression changes this:
 		#     @@
 		#     text
 		#     @target1
 		#     @
 		# to this:
 		#     @@
 		#     text
 		#     @@
 		#
 		cd "$db/depot" &&
 		sed "/@target1/{; s/target1/@/; n; d; }" \
 		    empty-symlink,v >empty-symlink,v.tmp &&
 		mv empty-symlink,v.tmp empty-symlink,v
 	) &&
 	(
 		# Make sure symlink really is empty.  Asking
 		# p4 to sync here will make it generate errors.
 		cd "$cli" &&
 		p4 print -q //depot/empty-symlink#2 >out &&
 		test_must_be_empty out
 	) &&
 	test_when_finished cleanup_git &&

 	# make sure git p4 handles it without error
 	git p4 clone --dest="$git" //depot@all &&

 	# fix the symlink, make it point to "target2"
 	(
 		cd "$cli" &&
 		p4 open empty-symlink &&
 		rm empty-symlink &&
 		ln -s target2 empty-symlink &&
 		p4 submit -d "make empty-symlink point to target2"
 	) &&
 	cleanup_git &&
 	git p4 clone --dest="$git" //depot@all &&
 	(
 		cd "$git" &&
 		test $(test_readlink empty-symlink) = target2
 	)
 '

 test_expect_success SYMLINKS 'utf-8 with and without BOM in text file' '
 	(
 		cd "$cli" &&

 		# some utf8 content
 		echo some tǣxt >utf8-nobom-test &&

 		# same utf8 content as before but with bom
 		echo some tǣxt | sed '\''s/^/\xef\xbb\xbf/'\'' >utf8-bom-test &&

 		# bom only
 		dd bs=1 count=3 if=utf8-bom-test of=utf8-bom-empty-test &&

 		p4 add utf8-nobom-test utf8-bom-test utf8-bom-empty-test &&
 		p4 submit -d "add utf8 test files"
 	) &&
 	test_when_finished cleanup_git &&

 	git p4 clone --dest="$git" //depot@all &&
 	(
 		cd "$git" &&
 		git checkout refs/remotes/p4/master &&

 		echo some tǣxt >utf8-nobom-check &&
 		test_cmp utf8-nobom-check utf8-nobom-test &&

 		echo some tǣxt | sed '\''s/^/\xef\xbb\xbf/'\'' >utf8-bom-check &&
 		test_cmp utf8-bom-check utf8-bom-test &&

 		dd bs=1 count=3 if=utf8-bom-check of=utf8-bom-empty-check &&
 		test_cmp utf8-bom-empty-check utf8-bom-empty-test
 	)
 '

 test_done
	#!/bin/sh

	test_description='git p4 filetype tests'

	. ./lib-git-p4.sh

	test_expect_success 'start p4d' '
	start_p4d
	'

	#
	# This series of tests checks newline handling Both p4 and
	# git store newlines as \n, and have options to choose how
	# newlines appear in checked-out files.
	#
	test_expect_success 'p4 client newlines, unix' '
	(
	cd "$cli" &&
	p4 client -o \| sed "/LineEnd/s/:.*/:unix/" \| p4 client -i &&
	printf "unix\ncrlf\n" >f-unix &&
	printf "unix\r\ncrlf\r\n" >f-unix-as-crlf &&
	p4 add -t text f-unix &&
	p4 submit -d f-unix &&

	# LineEnd: unix; should be no change after sync
	cp f-unix f-unix-orig &&
	p4 sync -f &&
	test_cmp f-unix-orig f-unix &&

	# make sure stored in repo as unix newlines
	# use sed to eat python-appended newline
	p4 -G print //depot/f-unix \| marshal_dump data 2 \|\
	sed \$d >f-unix-p4-print &&
	test_cmp f-unix-orig f-unix-p4-print &&

	# switch to win, make sure lf -> crlf
	p4 client -o \| sed "/LineEnd/s/:.*/:win/" \| p4 client -i &&
	p4 sync -f &&
	test_cmp f-unix-as-crlf f-unix
	)
	'

	test_expect_success 'p4 client newlines, win' '
	(
	cd "$cli" &&
	p4 client -o \| sed "/LineEnd/s/:.*/:win/" \| p4 client -i &&
	printf "win\r\ncrlf\r\n" >f-win &&
	printf "win\ncrlf\n" >f-win-as-lf &&
	p4 add -t text f-win &&
	p4 submit -d f-win &&

	# LineEnd: win; should be no change after sync
	cp f-win f-win-orig &&
	p4 sync -f &&
	test_cmp f-win-orig f-win &&

	# make sure stored in repo as unix newlines
	# use sed to eat python-appened newline
	p4 -G print //depot/f-win \| marshal_dump data 2 \|\
	sed \$d >f-win-p4-print &&
	test_cmp f-win-as-lf f-win-p4-print &&

	# switch to unix, make sure lf -> crlf
	p4 client -o \| sed "/LineEnd/s/:.*/:unix/" \| p4 client -i &&
	p4 sync -f &&
	test_cmp f-win-as-lf f-win
	)
	'

	test_expect_success 'ensure blobs store only lf newlines' '
	test_when_finished cleanup_git &&
	(
	cd "$git" &&
	git init &&
	git p4 sync //depot@all &&

	# verify the files in .git are stored only with newlines
	o=$(git ls-tree p4/master -- f-unix \| cut -f1 \| cut -d\ -f3) &&
	git cat-file blob $o >f-unix-blob &&
	test_cmp "$cli"/f-unix-orig f-unix-blob &&

	o=$(git ls-tree p4/master -- f-win \| cut -f1 \| cut -d\ -f3) &&
	git cat-file blob $o >f-win-blob &&
	test_cmp "$cli"/f-win-as-lf f-win-blob &&

	rm f-unix-blob f-win-blob
	)
	'

	test_expect_success 'gitattributes setting eol=lf produces lf newlines' '
	test_when_finished cleanup_git &&
	(
	# checkout the files and make sure core.eol works as planned
	cd "$git" &&
	git init &&
	echo "* eol=lf" >.gitattributes &&
	git p4 sync //depot@all &&
	git checkout -b master p4/master &&
	test_cmp "$cli"/f-unix-orig f-unix &&
	test_cmp "$cli"/f-win-as-lf f-win
	)
	'

	test_expect_success 'gitattributes setting eol=crlf produces crlf newlines' '
	test_when_finished cleanup_git &&
	(
	# checkout the files and make sure core.eol works as planned
	cd "$git" &&
	git init &&
	echo "* eol=crlf" >.gitattributes &&
	git p4 sync //depot@all &&
	git checkout -b master p4/master &&
	test_cmp "$cli"/f-unix-as-crlf f-unix &&
	test_cmp "$cli"/f-win-orig f-win
	)
	'

	test_expect_success 'crlf cleanup' '
	(
	cd "$cli" &&
	rm f-unix-orig f-unix-as-crlf &&
	rm f-win-orig f-win-as-lf &&
	p4 client -o \| sed "/LineEnd/s/:.*/:unix/" \| p4 client -i &&
	p4 sync -f
	)
	'

	test_expect_success 'utf-16 file create' '
	(
	cd "$cli" &&

	# p4 saves this verbatim
	printf "three\nline\ntext\n" >f-ascii &&
	p4 add -t text f-ascii &&

	# p4 adds \377\376 header
	cp f-ascii f-ascii-as-utf16 &&
	p4 add -t utf16 f-ascii-as-utf16 &&

	# p4 saves this exactly as iconv produced it
	printf "three\nline\ntext\n" \| iconv -f ascii -t utf-16 >f-utf16 &&
	p4 add -t utf16 f-utf16 &&

	# this also is unchanged
	cp f-utf16 f-utf16-as-text &&
	p4 add -t text f-utf16-as-text &&

	p4 submit -d "f files" &&

	# force update of client files
	p4 sync -f
	)
	'

	test_expect_success 'utf-16 file test' '
	test_when_finished cleanup_git &&
	git p4 clone --dest="$git" //depot@all &&
	(
	cd "$git" &&

	test_cmp "$cli/f-ascii" f-ascii &&
	test_cmp "$cli/f-ascii-as-utf16" f-ascii-as-utf16 &&
	test_cmp "$cli/f-utf16" f-utf16 &&
	test_cmp "$cli/f-utf16-as-text" f-utf16-as-text
	)
	'

	test_expect_success 'keyword file create' '
	(
	cd "$cli" &&

	printf "id\n\$Id\$\n\$Author\$\ntext\n" >k-text-k &&
	p4 add -t text+k k-text-k &&

	cp k-text-k k-text-ko &&
	p4 add -t text+ko k-text-ko &&

	iconv -f ascii -t utf-16 <k-text-k >k-utf16-k &&
	p4 add -t utf16+k k-utf16-k &&

	cp k-utf16-k k-utf16-ko &&
	p4 add -t utf16+ko k-utf16-ko &&

	p4 submit -d "k files" &&
	p4 sync -f
	)
	'

	build_smush() {
	cat >k_smush.py <<-\EOF &&
	import re, sys
	sys.stdout.write(re.sub(r'(?i)\$(Id\|Header\|Author\|Date\|DateTime\|Change\|File\|Revision):[^$]*\$', r'$\1$', sys.stdin.read()))
	EOF
	cat >ko_smush.py <<-\EOF
	import re, sys
	sys.stdout.write(re.sub(r'(?i)\$(Id\|Header):[^$]*\$', r'$\1$', sys.stdin.read()))
	EOF
	}

	test_expect_success 'keyword file test' '
	build_smush &&
	test_when_finished rm -f k_smush.py ko_smush.py &&
	test_when_finished cleanup_git &&
	git p4 clone --dest="$git" //depot@all &&
	(
	cd "$git" &&

	# text, ensure unexpanded
	"$PYTHON_PATH" "$TRASH_DIRECTORY/k_smush.py" <"$cli/k-text-k" >cli-k-text-k-smush &&
	test_cmp cli-k-text-k-smush k-text-k &&
	"$PYTHON_PATH" "$TRASH_DIRECTORY/ko_smush.py" <"$cli/k-text-ko" >cli-k-text-ko-smush &&
	test_cmp cli-k-text-ko-smush k-text-ko &&

	# utf16, even though p4 expands keywords, git p4 does not
	# try to undo that
	test_cmp "$cli/k-utf16-k" k-utf16-k &&
	test_cmp "$cli/k-utf16-ko" k-utf16-ko
	)
	'

	build_gendouble() {
	cat >gendouble.py <<-\EOF
	import sys
	import struct

	s = struct.pack(b">LL18s",
	0x00051607, # AppleDouble
	0x00020000, # version 2
	b"" # pad to 26 bytes
	)
	getattr(sys.stdout, 'buffer', sys.stdout).write(s)
	EOF
	}

	test_expect_success 'ignore apple' '
	test_when_finished rm -f gendouble.py &&
	build_gendouble &&
	(
	cd "$cli" &&
	test-tool genrandom apple 1024 >double.png &&
	"$PYTHON_PATH" "$TRASH_DIRECTORY/gendouble.py" >%double.png &&
	p4 add -t apple double.png &&
	p4 submit -d appledouble
	) &&
	test_when_finished cleanup_git &&
	git p4 clone --dest="$git" //depot@all &&
	(
	cd "$git" &&
	test ! -f double.png
	)
	'

	test_expect_success SYMLINKS 'create p4 symlink' '
	cd "$cli" &&
	ln -s symlink-target symlink &&
	p4 add symlink &&
	p4 submit -d "add symlink"
	'

	test_expect_success SYMLINKS 'ensure p4 symlink parsed correctly' '
	test_when_finished cleanup_git &&
	git p4 clone --dest="$git" //depot@all &&
	(
	cd "$git" &&
	test -L symlink &&
	test $(test_readlink symlink) = symlink-target
	)
	'

	test_expect_success SYMLINKS 'empty symlink target' '
	(
	# first create the file as a file
	cd "$cli" &&
	>empty-symlink &&
	p4 add empty-symlink &&
	p4 submit -d "add empty-symlink as a file"
	) &&
	(
	# now change it to be a symlink to "target1"
	cd "$cli" &&
	p4 edit empty-symlink &&
	p4 reopen -t symlink empty-symlink &&
	rm empty-symlink &&
	ln -s target1 empty-symlink &&
	p4 add empty-symlink &&
	p4 submit -d "make empty-symlink point to target1"
	) &&
	(
	# Hack the p4 depot to make the symlink point to nothing;
	# this should not happen in reality, but shows up
	# in p4 repos in the wild.
	#
	# The sed expression changes this:
	# @@
	# text
	# @target1
	# @
	# to this:
	# @@
	# text
	# @@
	#
	cd "$db/depot" &&
	sed "/@target1/{; s/target1/@/; n; d; }" \
	empty-symlink,v >empty-symlink,v.tmp &&
	mv empty-symlink,v.tmp empty-symlink,v
	) &&
	(
	# Make sure symlink really is empty. Asking
	# p4 to sync here will make it generate errors.
	cd "$cli" &&
	p4 print -q //depot/empty-symlink#2 >out &&
	test_must_be_empty out
	) &&
	test_when_finished cleanup_git &&

	# make sure git p4 handles it without error
	git p4 clone --dest="$git" //depot@all &&

	# fix the symlink, make it point to "target2"
	(
	cd "$cli" &&
	p4 open empty-symlink &&
	rm empty-symlink &&
	ln -s target2 empty-symlink &&
	p4 submit -d "make empty-symlink point to target2"
	) &&
	cleanup_git &&
	git p4 clone --dest="$git" //depot@all &&
	(
	cd "$git" &&
	test $(test_readlink empty-symlink) = target2
	)
	'

	test_expect_success SYMLINKS 'utf-8 with and without BOM in text file' '
	(
	cd "$cli" &&

	# some utf8 content
	echo some tǣxt >utf8-nobom-test &&

	# same utf8 content as before but with bom
	echo some tǣxt \| sed '\''s/^/\xef\xbb\xbf/'\'' >utf8-bom-test &&

	# bom only
	dd bs=1 count=3 if=utf8-bom-test of=utf8-bom-empty-test &&

	p4 add utf8-nobom-test utf8-bom-test utf8-bom-empty-test &&
	p4 submit -d "add utf8 test files"
	) &&
	test_when_finished cleanup_git &&

	git p4 clone --dest="$git" //depot@all &&
	(
	cd "$git" &&
	git checkout refs/remotes/p4/master &&

	echo some tǣxt >utf8-nobom-check &&
	test_cmp utf8-nobom-check utf8-nobom-test &&

	echo some tǣxt \| sed '\''s/^/\xef\xbb\xbf/'\'' >utf8-bom-check &&
	test_cmp utf8-bom-check utf8-bom-test &&

	dd bs=1 count=3 if=utf8-bom-check of=utf8-bom-empty-check &&
	test_cmp utf8-bom-empty-check utf8-bom-empty-test
	)
	'

	test_done