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git/t/t5503-tagfollow.sh
Jeff King 2ad23273e7 do not use GIT_TRACE_PACKET=3 in tests
Some test scripts use the GIT_TRACE mechanism to dump
debugging information to descriptor 3 (and point it to a
file using the shell). On Windows, however, bash is unable
to set up descriptor 3. We do not write our trace to the
file, and worse, we may interfere with other operations
happening on descriptor 3, causing tests to fail or even
behave inconsistently.

Prior to commit 97a83fa (upload-pack: remove packet debugging
harness), these tests used GIT_DEBUG_SEND_PACK, which only
supported output to a descriptor. The tests in t5503 were
always broken on Windows, and were marked to be skipped via
the NOT_MINGW prerequisite. In t5700, the tests used to pass
prior to 97a83fa, but only because they were not careful
enough; because we only grepped the trace file, an empty
file looked successful to us. But post-97a83fa, the writing
to descriptor 3 causes "git fetch" to hang (presumably
because we are throwing random bytes into the middle of the
protocol).

Now that we are using the GIT_TRACE mechanism, we can
improve both scripts by asking git to write directly to a
file rather than a descriptor. That fixes the hang in t5700,
and should allow t5503 to successfully run on Windows.

In both cases we now also use "test -s" to double-check that
our trace file actually contains output, which should reduce
the possibility of an erroneously passing test.

Signed-off-by: Jeff King <peff@peff.net>
Tested-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-03-21 08:03:32 -07:00

160 lines
3.1 KiB
Bash
Executable file

#!/bin/sh
test_description='test automatic tag following'
. ./test-lib.sh
# End state of the repository:
#
# T - tag1 S - tag2
# / /
# L - A ------ O ------ B
# \ \ \
# \ C - origin/cat \
# origin/master master
test_expect_success setup '
test_tick &&
echo ichi >file &&
git add file &&
git commit -m L &&
L=$(git rev-parse --verify HEAD) &&
(
mkdir cloned &&
cd cloned &&
git init-db &&
git remote add -f origin ..
) &&
test_tick &&
echo A >file &&
git add file &&
git commit -m A &&
A=$(git rev-parse --verify HEAD)
'
U=UPLOAD_LOG
UPATH="$(pwd)/$U"
test_expect_success 'setup expect' '
cat - <<EOF >expect
want $A
EOF
'
get_needs () {
test -s "$1" &&
perl -alne '
next unless $F[1] eq "upload-pack<";
last if $F[2] eq "0000";
print $F[2], " ", $F[3];
' "$1"
}
test_expect_success 'fetch A (new commit : 1 connection)' '
rm -f $U &&
(
cd cloned &&
GIT_TRACE_PACKET=$UPATH git fetch &&
test $A = $(git rev-parse --verify origin/master)
) &&
get_needs $U >actual &&
test_cmp expect actual
'
test_expect_success "create tag T on A, create C on branch cat" '
git tag -a -m tag1 tag1 $A &&
T=$(git rev-parse --verify tag1) &&
git checkout -b cat &&
echo C >file &&
git add file &&
git commit -m C &&
C=$(git rev-parse --verify HEAD) &&
git checkout master
'
test_expect_success 'setup expect' '
cat - <<EOF >expect
want $C
want $T
EOF
'
test_expect_success 'fetch C, T (new branch, tag : 1 connection)' '
rm -f $U &&
(
cd cloned &&
GIT_TRACE_PACKET=$UPATH git fetch &&
test $C = $(git rev-parse --verify origin/cat) &&
test $T = $(git rev-parse --verify tag1) &&
test $A = $(git rev-parse --verify tag1^0)
) &&
get_needs $U >actual &&
test_cmp expect actual
'
test_expect_success "create commits O, B, tag S on B" '
test_tick &&
echo O >file &&
git add file &&
git commit -m O &&
test_tick &&
echo B >file &&
git add file &&
git commit -m B &&
B=$(git rev-parse --verify HEAD) &&
git tag -a -m tag2 tag2 $B &&
S=$(git rev-parse --verify tag2)
'
test_expect_success 'setup expect' '
cat - <<EOF >expect
want $B
want $S
EOF
'
test_expect_success 'fetch B, S (commit and tag : 1 connection)' '
rm -f $U &&
(
cd cloned &&
GIT_TRACE_PACKET=$UPATH git fetch &&
test $B = $(git rev-parse --verify origin/master) &&
test $B = $(git rev-parse --verify tag2^0) &&
test $S = $(git rev-parse --verify tag2)
) &&
get_needs $U >actual &&
test_cmp expect actual
'
test_expect_success 'setup expect' '
cat - <<EOF >expect
want $B
want $S
EOF
'
test_expect_success 'new clone fetch master and tags' '
git branch -D cat
rm -f $U
(
mkdir clone2 &&
cd clone2 &&
git init &&
git remote add origin .. &&
GIT_TRACE_PACKET=$UPATH git fetch &&
test $B = $(git rev-parse --verify origin/master) &&
test $S = $(git rev-parse --verify tag2) &&
test $B = $(git rev-parse --verify tag2^0) &&
test $T = $(git rev-parse --verify tag1) &&
test $A = $(git rev-parse --verify tag1^0)
) &&
get_needs $U >actual &&
test_cmp expect actual
'
test_done