d21f596dd

Denis Vlasenko

2007-10-05

FAILED Duration: 14s

Subject

add tests for gunzip

No binary (build failed)

Architecture: x86_64-linux-gnu Compiler: gcc (Ubuntu 11.4.0-1ubuntu1~22.04.3) 11.4.0

—

(log yok)

archival/bbunzip_test.sh+61 -0

@@ -0,0 +1,61 @@
+	#!/bin/sh
+	# Test that concatenated gz files are unpacking correctly.
+	# It also tests that unpacking in general is working right.
+	# Since zip code has many corner cases, run it for a few hours
+	# to get a decent coverage (200000 tests or more).
+
+	gzip="gzip"
+	gunzip="../busybox gunzip"
+	# Or the other way around:
+	#gzip="../busybox gzip"
+	#gunzip="gunzip"
+
+	c=0
+	i=$PID
+	while true; do
+	c=$((c+1))
+
+	# RANDOM is not very random on some shells. Spice it up.
+	# 100003 is prime
+	len1=$(( (((RANDOM*RANDOM)^i) & 0x7ffffff) % 100003 ))
+	i=$((i * 1664525 + 1013904223))
+	len2=$(( (((RANDOM*RANDOM)^i) & 0x7ffffff) % 100003 ))
+
+	# Just using urandom will make gzip use method 0 (store) -
+	# not good for test coverage!
+	cat /dev/urandom \| while true; do read junk; echo "junk $c $i $junk"; done \
+	\| dd bs=$len1 count=1 >z1 2>/dev/null
+	cat /dev/urandom \| while true; do read junk; echo "junk $c $i $junk"; done \
+	\| dd bs=$len2 count=1 >z2 2>/dev/null
+
+	$gzip <z1 >zz.gz
+	$gzip <z2 >>zz.gz
+	$gunzip -c zz.gz >z9 \|\| {
+	echo "Exitcode $?"
+	exit
+	}
+	sum=`cat z1 z2 \| md5sum`
+	sum9=`md5sum <z9`
+	test "$sum" == "$sum9" \|\| {
+	echo "md5sums don't match"
+	exit
+	}
+	echo "Test $c ok: len1=$len1 len2=$len2 sum=$sum"
+
+	sum=`cat z1 z2 z1 z2 \| md5sum`
+	rm z1.gz z2.gz 2>/dev/null
+	$gzip z1
+	$gzip z2
+	cat z1.gz z2.gz z1.gz z2.gz >zz.gz
+	$gunzip -c zz.gz >z9 \|\| {
+	echo "Exitcode $? (2)"
+	exit
+	}
+	sum9=`md5sum <z9`
+	test "$sum" == "$sum9" \|\| {
+	echo "md5sums don't match (1)"
+	exit
+	}
+
+	echo "Test $c ok: len1=$len1 len2=$len2 sum=$sum (2)"
+	done

archival/bbunzip_test2.sh+10 -0

@@ -0,0 +1,10 @@
+	#!/bin/sh
+	# Leak test for gunzip. Watch top for growing process size.
+
+	# Just using urandom will make gzip use method 0 (store) -
+	# not good for test coverage!
+
+	cat /dev/urandom \
+	\| while true; do read junk; echo "junk $RANDOM $junk"; done \
+	\| ../busybox gzip \
+	\| ../busybox gunzip -c >/dev/null

archival/bbunzip_test3.sh+23 -0

@@ -0,0 +1,23 @@
+	#!/bin/sh
+	# Leak test for gunzip. Watch top for growing process size.
+	# In this case we look for leaks in "concatenated .gz" code -
+	# we feed gunzip with a stream of .gz files.
+
+	i=$PID
+	c=0
+	while true; do
+	c=$((c + 1))
+	echo "Block# $c" >&2
+	# RANDOM is not very random on some shells. Spice it up.
+	i=$((i * 1664525 + 1013904223))
+	# 100003 is prime
+	len=$(( (((RANDOM*RANDOM)^i) & 0x7ffffff) % 100003 ))
+
+	# Just using urandom will make gzip use method 0 (store) -
+	# not good for test coverage!
+	cat /dev/urandom \
+	\| while true; do read junk; echo "junk $c $i $junk"; done \
+	\| dd bs=$len count=1 2>/dev/null \
+	\| gzip >xxx.gz
+	cat xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz xxx.gz
+	done \| ../busybox gunzip -c >/dev/null