git-commit-vandalism/t/t5401-update-hooks.sh
Junio C Hamano 3af828634f tests: do not use implicit "git diff --no-index"
As a general principle, we should not use "git diff" to validate the
results of what git command that is being tested has done.  We would not
know if we are testing the command in question, or locating a bug in the
cute hack of "git diff --no-index".

Rather use test_cmp for that purpose.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-24 00:01:56 -07:00

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#!/bin/sh
#
# Copyright (c) 2006 Shawn O. Pearce
#
test_description='Test the update hook infrastructure.'
. ./test-lib.sh
test_expect_success setup '
echo This is a test. >a &&
git update-index --add a &&
tree0=$(git write-tree) &&
commit0=$(echo setup | git commit-tree $tree0) &&
echo We hope it works. >a &&
git update-index a &&
tree1=$(git write-tree) &&
commit1=$(echo modify | git commit-tree $tree1 -p $commit0) &&
git update-ref refs/heads/master $commit0 &&
git update-ref refs/heads/tofail $commit1 &&
git-clone ./. victim &&
GIT_DIR=victim/.git git update-ref refs/heads/tofail $commit1 &&
git update-ref refs/heads/master $commit1 &&
git update-ref refs/heads/tofail $commit0
'
cat >victim/.git/hooks/pre-receive <<'EOF'
#!/bin/sh
printf %s "$@" >>$GIT_DIR/pre-receive.args
cat - >$GIT_DIR/pre-receive.stdin
echo STDOUT pre-receive
echo STDERR pre-receive >&2
EOF
chmod u+x victim/.git/hooks/pre-receive
cat >victim/.git/hooks/update <<'EOF'
#!/bin/sh
echo "$@" >>$GIT_DIR/update.args
read x; printf %s "$x" >$GIT_DIR/update.stdin
echo STDOUT update $1
echo STDERR update $1 >&2
test "$1" = refs/heads/master || exit
EOF
chmod u+x victim/.git/hooks/update
cat >victim/.git/hooks/post-receive <<'EOF'
#!/bin/sh
printf %s "$@" >>$GIT_DIR/post-receive.args
cat - >$GIT_DIR/post-receive.stdin
echo STDOUT post-receive
echo STDERR post-receive >&2
EOF
chmod u+x victim/.git/hooks/post-receive
cat >victim/.git/hooks/post-update <<'EOF'
#!/bin/sh
echo "$@" >>$GIT_DIR/post-update.args
read x; printf %s "$x" >$GIT_DIR/post-update.stdin
echo STDOUT post-update
echo STDERR post-update >&2
EOF
chmod u+x victim/.git/hooks/post-update
test_expect_success push '
! git-send-pack --force ./victim/.git master tofail >send.out 2>send.err
'
test_expect_success 'updated as expected' '
test $(GIT_DIR=victim/.git git rev-parse master) = $commit1 &&
test $(GIT_DIR=victim/.git git rev-parse tofail) = $commit1
'
test_expect_success 'hooks ran' '
test -f victim/.git/pre-receive.args &&
test -f victim/.git/pre-receive.stdin &&
test -f victim/.git/update.args &&
test -f victim/.git/update.stdin &&
test -f victim/.git/post-receive.args &&
test -f victim/.git/post-receive.stdin &&
test -f victim/.git/post-update.args &&
test -f victim/.git/post-update.stdin
'
test_expect_success 'pre-receive hook input' '
(echo $commit0 $commit1 refs/heads/master;
echo $commit1 $commit0 refs/heads/tofail
) | test_cmp - victim/.git/pre-receive.stdin
'
test_expect_success 'update hook arguments' '
(echo refs/heads/master $commit0 $commit1;
echo refs/heads/tofail $commit1 $commit0
) | test_cmp - victim/.git/update.args
'
test_expect_success 'post-receive hook input' '
echo $commit0 $commit1 refs/heads/master |
test_cmp - victim/.git/post-receive.stdin
'
test_expect_success 'post-update hook arguments' '
echo refs/heads/master |
test_cmp - victim/.git/post-update.args
'
test_expect_success 'all hook stdin is /dev/null' '
! test -s victim/.git/update.stdin &&
! test -s victim/.git/post-update.stdin
'
test_expect_success 'all *-receive hook args are empty' '
! test -s victim/.git/pre-receive.args &&
! test -s victim/.git/post-receive.args
'
test_expect_success 'send-pack produced no output' '
! test -s send.out
'
cat <<EOF >expect
STDOUT pre-receive
STDERR pre-receive
STDOUT update refs/heads/master
STDERR update refs/heads/master
STDOUT update refs/heads/tofail
STDERR update refs/heads/tofail
STDOUT post-receive
STDERR post-receive
STDOUT post-update
STDERR post-update
EOF
test_expect_success 'send-pack stderr contains hook messages' '
grep ^STD send.err >actual &&
test_cmp - actual <expect
'
test_done