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git/t/t5300-pack-object.sh
Pavel Roskin 4d9d62fa7c [PATCH] Trapping exit in tests, using return for errors
I have noticed that "make test" fails without any explanations when the
"merge" utility is missing.  I don't think tests should be silent in
case of failure.

It turned out that the particular test was using "exit" to interrupt the
test in case of an error.  This caused the whole test script to exit.
No further tests would be run even if "--immediate" wasn't specified.
No error message was printed.

This patch does following:

All instances of "exit", "exit 1" and "(exit 1)" in tests have been
replaced with "return 1".  In fact, "(exit 1)" had no effect.

File descriptor 5 is duplicated from file descriptor 1.  This is needed
to print important error messages from tests.

New function test_run_() has been introduced.  Any "return" in the test
would merely cause that function to return without skipping calls to
test_failure_() and test_ok_().  The new function also traps "exit" and
treats it like a fatal error (in case somebody reintroduces "exit" in
the tests).

test_expect_failure() and test_expect_success() check both the result of
eval and the return value of test_run_().  If the later is not 0, it's
always a failure because it indicates the the test didn't complete.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-11 18:26:16 -07:00

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#!/bin/sh
#
# Copyright (c) 2005 Junio C Hamano
#
test_description='git-pack-object
'
. ./test-lib.sh
TRASH=`pwd`
test_expect_success \
'setup' \
'rm -f .git/index*
for i in a b c
do
dd if=/dev/zero bs=4k count=1 | tr "\\0" $i >$i &&
git-update-cache --add $i || return 1
done &&
cat c >d && echo foo >>d && git-update-cache --add d &&
tree=`git-write-tree` &&
commit=`git-commit-tree $tree </dev/null` && {
echo $tree &&
echo $commit &&
git-ls-tree $tree | sed -e "s/.* \\([0-9a-f]*\\) .*/\\1/"
} >obj-list && {
git-diff-tree --root -p $commit &&
while read object
do
t=`git-cat-file -t $object` &&
git-cat-file $t $object || return 1
done <obj-list
} >expect'
test_expect_success \
'pack without delta' \
'packname_1=$(git-pack-objects --window=0 test-1 <obj-list)'
rm -fr .git2
mkdir .git2
test_expect_success \
'unpack without delta' \
"GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git-init-db &&
git-unpack-objects -n <test-1-${packname_1}.pack &&
git-unpack-objects <test-1-${packname_1}.pack"
unset GIT_OBJECT_DIRECTORY
cd $TRASH/.git2
test_expect_success \
'check unpack without delta' \
'(cd ../.git && find objects -type f -print) |
while read path
do
cmp $path ../.git/$path || {
echo $path differs.
return 1
}
done'
cd $TRASH
test_expect_success \
'pack with delta' \
'pwd &&
packname_2=$(git-pack-objects test-2 <obj-list)'
rm -fr .git2
mkdir .git2
test_expect_success \
'unpack with delta' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git-init-db &&
git-unpack-objects -n <test-2-${packname_2}.pack &&
git-unpack-objects <test-2-${packname_2}.pack'
unset GIT_OBJECT_DIRECTORY
cd $TRASH/.git2
test_expect_success \
'check unpack with delta' \
'(cd ../.git && find objects -type f -print) |
while read path
do
cmp $path ../.git/$path || {
echo $path differs.
return 1
}
done'
cd $TRASH
rm -fr .git2
mkdir .git2
test_expect_success \
'use packed objects' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
git-init-db &&
cp test-1-${packname_1}.pack test-1-${packname_1}.idx .git2/objects/pack && {
git-diff-tree --root -p $commit &&
while read object
do
t=`git-cat-file -t $object` &&
git-cat-file $t $object || return 1
done <obj-list
} >current &&
diff expect current'
test_expect_success \
'use packed deltified objects' \
'GIT_OBJECT_DIRECTORY=.git2/objects &&
export GIT_OBJECT_DIRECTORY &&
rm -f .git2/objects/pack/test-?.idx &&
cp test-2-${packname_2}.pack test-2-${packname_2}.idx .git2/objects/pack && {
git-diff-tree --root -p $commit &&
while read object
do
t=`git-cat-file -t $object` &&
git-cat-file $t $object || return 1
done <obj-list
} >current &&
diff expect current'
unset GIT_OBJECT_DIRECTORY
test_expect_success \
'verify pack' \
'git-verify-pack test-1-${packname_1}.idx test-2-${packname_2}.idx'
test_expect_success \
'corrupt a pack and see if verify catches' \
'cp test-1-${packname_1}.idx test-3.idx &&
cp test-2-${packname_2}.pack test-3.pack &&
if git-verify-pack test-3.idx
then false
else :;
fi &&
cp test-1-${packname_1}.pack test-3.pack &&
dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=2 &&
if git-verify-pack test-3.idx
then false
else :;
fi &&
cp test-1-${packname_1}.pack test-3.pack &&
dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=7 &&
if git-verify-pack test-3.idx
then false
else :;
fi &&
cp test-1-${packname_1}.pack test-3.pack &&
dd if=/dev/zero of=test-3.pack count=1 bs=1 conv=notrunc seek=12 &&
if git-verify-pack test-3.idx
then false
else :;
fi &&
:'
test_done