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 commit97a83fa
(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 to97a83fa
, 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>
This commit is contained in:
parent
2a4552021a
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@ -4,10 +4,6 @@ test_description='test automatic tag following'
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. ./test-lib.sh
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if ! test_have_prereq NOT_MINGW; then
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say "GIT_TRACE_PACKET not supported - skipping tests"
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fi
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# End state of the repository:
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#
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# T - tag1 S - tag2
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@ -17,7 +13,7 @@ fi
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# \ C - origin/cat \
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# origin/master master
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test_expect_success NOT_MINGW setup '
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test_expect_success setup '
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test_tick &&
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echo ichi >file &&
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git add file &&
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@ -39,33 +35,35 @@ test_expect_success NOT_MINGW setup '
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'
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U=UPLOAD_LOG
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UPATH="$(pwd)/$U"
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test_expect_success NOT_MINGW 'setup expect' '
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test_expect_success 'setup expect' '
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cat - <<EOF >expect
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want $A
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EOF
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'
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get_needs () {
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test -s "$1" &&
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perl -alne '
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next unless $F[1] eq "upload-pack<";
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last if $F[2] eq "0000";
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print $F[2], " ", $F[3];
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' "$@"
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' "$1"
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}
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test_expect_success NOT_MINGW 'fetch A (new commit : 1 connection)' '
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test_expect_success 'fetch A (new commit : 1 connection)' '
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rm -f $U &&
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(
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cd cloned &&
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GIT_TRACE_PACKET=3 git fetch 3>../$U &&
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GIT_TRACE_PACKET=$UPATH git fetch &&
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test $A = $(git rev-parse --verify origin/master)
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) &&
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get_needs $U >actual &&
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test_cmp expect actual
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'
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test_expect_success NOT_MINGW "create tag T on A, create C on branch cat" '
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test_expect_success "create tag T on A, create C on branch cat" '
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git tag -a -m tag1 tag1 $A &&
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T=$(git rev-parse --verify tag1) &&
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@ -77,18 +75,18 @@ test_expect_success NOT_MINGW "create tag T on A, create C on branch cat" '
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git checkout master
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'
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test_expect_success NOT_MINGW 'setup expect' '
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test_expect_success 'setup expect' '
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cat - <<EOF >expect
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want $C
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want $T
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EOF
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'
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test_expect_success NOT_MINGW 'fetch C, T (new branch, tag : 1 connection)' '
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test_expect_success 'fetch C, T (new branch, tag : 1 connection)' '
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rm -f $U &&
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(
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cd cloned &&
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GIT_TRACE_PACKET=3 git fetch 3>../$U &&
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GIT_TRACE_PACKET=$UPATH git fetch &&
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test $C = $(git rev-parse --verify origin/cat) &&
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test $T = $(git rev-parse --verify tag1) &&
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test $A = $(git rev-parse --verify tag1^0)
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@ -97,7 +95,7 @@ test_expect_success NOT_MINGW 'fetch C, T (new branch, tag : 1 connection)' '
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test_cmp expect actual
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'
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test_expect_success NOT_MINGW "create commits O, B, tag S on B" '
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test_expect_success "create commits O, B, tag S on B" '
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test_tick &&
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echo O >file &&
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git add file &&
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@ -113,18 +111,18 @@ test_expect_success NOT_MINGW "create commits O, B, tag S on B" '
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S=$(git rev-parse --verify tag2)
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'
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test_expect_success NOT_MINGW 'setup expect' '
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test_expect_success 'setup expect' '
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cat - <<EOF >expect
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want $B
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want $S
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EOF
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'
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test_expect_success NOT_MINGW 'fetch B, S (commit and tag : 1 connection)' '
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test_expect_success 'fetch B, S (commit and tag : 1 connection)' '
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rm -f $U &&
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(
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cd cloned &&
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GIT_TRACE_PACKET=3 git fetch 3>../$U &&
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GIT_TRACE_PACKET=$UPATH git fetch &&
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test $B = $(git rev-parse --verify origin/master) &&
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test $B = $(git rev-parse --verify tag2^0) &&
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test $S = $(git rev-parse --verify tag2)
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@ -133,14 +131,14 @@ test_expect_success NOT_MINGW 'fetch B, S (commit and tag : 1 connection)' '
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test_cmp expect actual
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'
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test_expect_success NOT_MINGW 'setup expect' '
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test_expect_success 'setup expect' '
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cat - <<EOF >expect
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want $B
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want $S
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EOF
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'
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test_expect_success NOT_MINGW 'new clone fetch master and tags' '
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test_expect_success 'new clone fetch master and tags' '
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git branch -D cat
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rm -f $U
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(
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@ -148,7 +146,7 @@ test_expect_success NOT_MINGW 'new clone fetch master and tags' '
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cd clone2 &&
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git init &&
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git remote add origin .. &&
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GIT_TRACE_PACKET=3 git fetch 3>../$U &&
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GIT_TRACE_PACKET=$UPATH git fetch &&
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test $B = $(git rev-parse --verify origin/master) &&
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test $S = $(git rev-parse --verify tag2) &&
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test $B = $(git rev-parse --verify tag2^0) &&
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@ -54,11 +54,14 @@ cd "$base_dir"
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rm -f "$U.D"
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test_expect_success 'cloning with reference (no -l -s)' \
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'GIT_TRACE_PACKET=3 git clone --reference B "file://$(pwd)/A" D 3>"$U.D"'
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test_expect_success 'cloning with reference (no -l -s)' '
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GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
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'
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test_expect_success 'fetched no objects' \
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'! grep " want" "$U.D"'
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test_expect_success 'fetched no objects' '
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test -s "$U.D" &&
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! grep " want" "$U.D"
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'
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cd "$base_dir"
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@ -173,9 +176,10 @@ test_expect_success 'fetch with incomplete alternates' '
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(
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cd K &&
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git remote add J "file://$base_dir/J" &&
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GIT_TRACE_PACKET=3 git fetch J 3>"$U.K"
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GIT_TRACE_PACKET=$U.K git fetch J
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) &&
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master_object=$(cd A && git for-each-ref --format="%(objectname)" refs/heads/master) &&
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test -s "$U.K" &&
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! grep " want $master_object" "$U.K" &&
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tag_object=$(cd A && git for-each-ref --format="%(objectname)" refs/tags/HEAD) &&
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! grep " want $tag_object" "$U.K"
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