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Makefile: add framework to verify and bench sha1 implementations. 

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2006-06-24 00:59:49 -07:00
parent 86378b3289
commit b65bc21e7d
3 changed files with 113 additions and 0 deletions
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6
Makefile
View File

@ -636,6 +636,12 @@ test-delta$X: test-delta.c diff-delta.o patch-delta.o
test-dump-cache-tree$X: dump-cache-tree.o $(GITLIBS)
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)
test-sha1$X: test-sha1.o $(GITLIBS)
$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(LIBS)
check-sha1:: test-sha1$X
./test-sha1.sh
check:
for i in *.c; do sparse $(ALL_CFLAGS) $(SPARSE_FLAGS) $$i || exit; done

24
test-sha1.c Normal file
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@ -0,0 +1,24 @@
#include "cache.h"
int main(int ac, char **av)
{
SHA_CTX ctx;
unsigned char sha1[20];
SHA1_Init(&ctx);
while (1) {
ssize_t sz;
char buffer[8192];
sz = xread(0, buffer, sizeof(buffer));
if (sz == 0)
break;
if (sz < 0)
die("test-sha1: %s", strerror(errno));
SHA1_Update(&ctx, buffer, sz);
}
SHA1_Final(sha1, &ctx);
puts(sha1_to_hex(sha1));
exit(0);
}

83
test-sha1.sh Executable file
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@ -0,0 +1,83 @@
#!/bin/sh
dd if=/dev/zero bs=1048576 count=100 2>/dev/null |
/usr/bin/time ./test-sha1 >/dev/null
while read expect cnt pfx
do
case "$expect" in '#'*) continue ;; esac
actual=`
{
test -z "$pfx" || echo "$pfx"
dd if=/dev/zero bs=1048576 count=$cnt 2>/dev/null |
tr '[\0]' '[g]'
} | ./test-sha1
`
if test "$expect" = "$actual"
then
echo "OK: $expect $cnt $pfx"
else
echo >&2 "OOPS: $cnt"
echo >&2 "expect: $expect"
echo >&2 "actual: $actual"
exit 1
fi
done <<EOF
da39a3ee5e6b4b0d3255bfef95601890afd80709 0
3f786850e387550fdab836ed7e6dc881de23001b 0 a
5277cbb45a15902137d332d97e89cf8136545485 0 ab
03cfd743661f07975fa2f1220c5194cbaff48451 0 abc
3330b4373640f9e4604991e73c7e86bfd8da2dc3 0 abcd
ec11312386ad561674f724b8cca7cf1796e26d1d 0 abcde
bdc37c074ec4ee6050d68bc133c6b912f36474df 0 abcdef
69bca99b923859f2dc486b55b87f49689b7358c7 0 abcdefg
e414af7161c9554089f4106d6f1797ef14a73666 0 abcdefgh
0707f2970043f9f7c22029482db27733deaec029 0 abcdefghi
a4dd8aa74a5636728fe52451636e2e17726033aa 1
9986b45e2f4d7086372533bb6953a8652fa3644a 1 frotz
23d8d4f788e8526b4877548a32577543cbaaf51f 10
8cd23f822ab44c7f481b8c92d591f6d1fcad431c 10 frotz
f3b5604a4e604899c1233edb3bf1cc0ede4d8c32 512
b095bd837a371593048136e429e9ac4b476e1bb3 512 frotz
08fa81d6190948de5ccca3966340cc48c10cceac 1200 xyzzy
e33a291f42c30a159733dd98b8b3e4ff34158ca0 4090 4G
#a3bf783bc20caa958f6cb24dd140a7b21984838d 9999 nitfol
EOF
exit
# generating test vectors
# inputs are number of megabytes followed by some random string to prefix.
while read cnt pfx
do
actual=`
{
test -z "$pfx" || echo "$pfx"
dd if=/dev/zero bs=1048576 count=$cnt 2>/dev/null |
tr '[\0]' '[g]'
} | sha1sum |
sed -e 's/ .*//'
`
echo "$actual $cnt $pfx"
done <<EOF
0
0 a
0 ab
0 abc
0 abcd
0 abcde
0 abcdef
0 abcdefg
0 abcdefgh
0 abcdefghi
1
1 frotz
10
10 frotz
512
512 frotz
1200 xyzzy
4090 4G
9999 nitfol
EOF