From 758c1f9d1bcab5115f5d9e990c952602ea58a161 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ren=C3=A9=20Scharfe?= <l.s.r@web.de>
Date: Mon, 24 Apr 2017 19:29:53 +0200
Subject: [PATCH] archive-zip: add tests for big ZIP archives

Test the creation of ZIP archives bigger than 4GB and containing files
bigger than 4GB.  They are marked as EXPENSIVE because they take quite a
while and because the first one needs a bit more than 4GB of disk space
to store the resulting archive.

The big archive in the first test is made up of a tree containing
thousands of copies of a small file.  Yet the test has to write out the
full archive because unzip doesn't offer a way to read from stdin.

The big file in the second test is provided as a zipped pack file to
avoid writing another 4GB file to disk and then adding it.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 t/t5004-archive-corner-cases.sh |  45 ++++++++++++++++++++++++++++++++
 t/t5004/big-pack.zip            | Bin 0 -> 7373 bytes
 2 files changed, 45 insertions(+)
 create mode 100644 t/t5004/big-pack.zip

diff --git a/t/t5004-archive-corner-cases.sh b/t/t5004-archive-corner-cases.sh
index cca23383c5..5c886fa823 100755
--- a/t/t5004-archive-corner-cases.sh
+++ b/t/t5004-archive-corner-cases.sh
@@ -155,4 +155,49 @@ test_expect_success ZIPINFO 'zip archive with many entries' '
 	test_cmp expect actual
 '
 
+test_expect_failure EXPENSIVE,UNZIP 'zip archive bigger than 4GB' '
+	# build string containing 65536 characters
+	s=0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef &&
+	s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
+	s=$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s$s &&
+
+	# create blob with a length of 65536 + 1 bytes
+	blob=$(echo $s | git hash-object -w --stdin) &&
+
+	# create tree containing 65500 entries of that blob
+	for i in $(test_seq 1 65500)
+	do
+		echo "100644 blob $blob	$i"
+	done >tree &&
+	tree=$(git mktree <tree) &&
+
+	# zip it, creating an archive a bit bigger than 4GB
+	git archive -0 -o many-big.zip $tree &&
+
+	"$GIT_UNZIP" -t many-big.zip 9999 65500 &&
+	"$GIT_UNZIP" -t many-big.zip
+'
+
+test_expect_failure EXPENSIVE,UNZIP,ZIPINFO 'zip archive with files bigger than 4GB' '
+	# Pack created with:
+	#   dd if=/dev/zero of=file bs=1M count=4100 && git hash-object -w file
+	mkdir -p .git/objects/pack &&
+	(
+		cd .git/objects/pack &&
+		"$GIT_UNZIP" "$TEST_DIRECTORY"/t5004/big-pack.zip
+	) &&
+	blob=754a93d6fada4c6873360e6cb4b209132271ab0e &&
+	size=$(expr 4100 "*" 1024 "*" 1024) &&
+
+	# create a tree containing the file
+	tree=$(echo "100644 blob $blob	big-file" | git mktree) &&
+
+	# zip it, creating an archive with a file bigger than 4GB
+	git archive -o big.zip $tree &&
+
+	"$GIT_UNZIP" -t big.zip &&
+	"$ZIPINFO" big.zip >big.lst &&
+	grep $size big.lst
+'
+
 test_done
diff --git a/t/t5004/big-pack.zip b/t/t5004/big-pack.zip
new file mode 100644
index 0000000000000000000000000000000000000000..caaf614eeece6f818c525e433561e37560a75b05
GIT binary patch
literal 7373
zcmWIWW@Zs#U}E54xLY#A%SmVLl4u471|Jp%215oJhJwW8Y+ZvC^HlQ`3(KT5gS6zd
z#6$y=#3VyYlN6KGlw?bTG()50MB`LTb5p&{l#0+0P6p<OAOA*xaA^fM10%}|W(Ec@
z@jL#}{4)m*95`aY)ux;vb9C_xiI`WWKX0v%wv#-XR%01$R>-9-y6#!_6|EcGQyxED
zyZY^&^YwM2r?Wic_gf3wz0#?R{8hB^<Js4()@9Ms>$gt{iHiUEJN{iALjZ~|R(VzA
zOp{_@IDE*S!H8sEfc%Wl8*lHd?-DJPX@5BLD~n)>se}uQ{sHa{9CBhhi*hb3*-*jg
zc5o4&4%_XW4Ba<OG7P)VrhVaOTdmN<Ho4-C?R3NUpAYE!{5{5hc=zr*JFR#QUppur
z?|(T<>b?Enk9jiu`<7qbA8y|-Ck>2+hMBYN-pgCcFt>ev-5*|-&jb`JE>Hh`B*~cT
z&t2=?C44}E8GDaU*PD0ekK%{l7w@(f14RzJnfvea+fQlS75nRoU$s?(g=&R(fOLb%
zK_JPHAqeJ(fjJ$>oKcz4&>2l3kc=^!7e@2KXkHl23k(gTVK5p7z>;7z9gKznQp0()
zeK6WS7;PVn){Ud}!f4$%I)=h9I*!CJ8V10UU^E?!h5@KqG@1@Z!(cQWK$^#7<%OS{
z_HQoT!K!n;di%NDON?i(ygj-((dOTWgOj)4mXFhko42#<@9S6BTc6*5|Cc?$n~_P5
z8P`mn1SleafRRC^5k!+Qug40R*F&4rL$?-n>J8c2V<cM(nTW$>FDo0!BTPW}9!Q@6
I&6hC%0B76lcmMzZ

literal 0
HcmV?d00001

-- 
2.43.2