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git/t/t6006-rev-list-format.sh
Elijah Newren 7b6ad97939 t6006: simplify, fix, and optimize empty message test
Test t6006.71 ("oneline with empty message") was creating two commits
with simple commit messages, and then running filter-branch to rewrite
the commit messages to be "empty".  This test was introduced in commit
1fb5fdd25f ("rev-list: fix --pretty=oneline with empty message",
2010-03-21) and written this way because the --allow-empty-message
option to git commit did not exist at the time.

However, the filter-branch invocation used differed slightly from
--allow-empty-message in that it would have a commit message consisting
solely of a single newline, and as such was not testing what the
original commit intended to test.  Since both a truly empty commit
message and a commit message with a single linefeed could trigger the
original bug, modify the test slightly to include an example of each.

Despite only being one piece of the 71st test and there being 73 tests
overall, this small change to just this one test speeds up the overall
execution time of t6006 (as measured by the best of 3 runs of `time
./t6006-rev-list-format.sh`) by about 11% on Linux, 13% on Mac, and
about 15% on Windows.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-05 13:01:48 -07:00

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#!/bin/sh
# Copyright (c) 2009 Jens Lehmann
# Copyright (c) 2011 Alexey Shumkin (+ non-UTF-8 commit encoding tests)
test_description='git rev-list --pretty=format test'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-terminal.sh
test_tick
# Tested non-UTF-8 encoding
test_encoding="ISO8859-1"
# String "added" in German
# (translated with Google Translate),
# encoded in UTF-8, used as a commit log message below.
added_utf8_part=$(printf "\303\274")
added_utf8_part_iso88591=$(echo "$added_utf8_part" | iconv -f utf-8 -t $test_encoding)
added=$(printf "added (hinzugef${added_utf8_part}gt) foo")
added_iso88591=$(echo "$added" | iconv -f utf-8 -t $test_encoding)
# same but "changed"
changed_utf8_part=$(printf "\303\244")
changed_utf8_part_iso88591=$(echo "$changed_utf8_part" | iconv -f utf-8 -t $test_encoding)
changed=$(printf "changed (ge${changed_utf8_part}ndert) foo")
changed_iso88591=$(echo "$changed" | iconv -f utf-8 -t $test_encoding)
# Count of char to truncate
# Number is chosen so, that non-ACSII characters
# (see $added_utf8_part and $changed_utf8_part)
# fall into truncated parts of appropriate words both from left and right
truncate_count=20
test_expect_success 'setup' '
: >foo &&
git add foo &&
git config i18n.commitEncoding $test_encoding &&
echo "$added_iso88591" | git commit -F - &&
head1=$(git rev-parse --verify HEAD) &&
head1_short=$(git rev-parse --verify --short $head1) &&
tree1=$(git rev-parse --verify HEAD:) &&
tree1_short=$(git rev-parse --verify --short $tree1) &&
echo "$changed" > foo &&
echo "$changed_iso88591" | git commit -a -F - &&
head2=$(git rev-parse --verify HEAD) &&
head2_short=$(git rev-parse --verify --short $head2) &&
tree2=$(git rev-parse --verify HEAD:) &&
tree2_short=$(git rev-parse --verify --short $tree2) &&
git config --unset i18n.commitEncoding
'
# usage: test_format name format_string [failure] <expected_output
test_format () {
cat >expect.$1
test_expect_${3:-success} "format $1" "
git rev-list --pretty=format:'$2' master >output.$1 &&
test_cmp expect.$1 output.$1
"
}
# Feed to --format to provide predictable colored sequences.
BASIC_COLOR='%Credfoo%Creset'
COLOR='%C(red)foo%C(reset)'
AUTO_COLOR='%C(auto,red)foo%C(auto,reset)'
ALWAYS_COLOR='%C(always,red)foo%C(always,reset)'
has_color () {
test_decode_color <"$1" >decoded &&
echo "<RED>foo<RESET>" >expect &&
test_cmp expect decoded
}
has_no_color () {
echo foo >expect &&
test_cmp expect "$1"
}
test_format percent %%h <<EOF
commit $head2
%h
commit $head1
%h
EOF
test_format hash %H%n%h <<EOF
commit $head2
$head2
$head2_short
commit $head1
$head1
$head1_short
EOF
test_format tree %T%n%t <<EOF
commit $head2
$tree2
$tree2_short
commit $head1
$tree1
$tree1_short
EOF
test_format parents %P%n%p <<EOF
commit $head2
$head1
$head1_short
commit $head1
EOF
# we don't test relative here
test_format author %an%n%ae%n%ad%n%aD%n%at <<EOF
commit $head2
A U Thor
author@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
commit $head1
A U Thor
author@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
EOF
test_format committer %cn%n%ce%n%cd%n%cD%n%ct <<EOF
commit $head2
C O Mitter
committer@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
commit $head1
C O Mitter
committer@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
EOF
test_format encoding %e <<EOF
commit $head2
$test_encoding
commit $head1
$test_encoding
EOF
test_format subject %s <<EOF
commit $head2
$changed
commit $head1
$added
EOF
test_format subject-truncated "%<($truncate_count,trunc)%s" <<EOF
commit $head2
changed (ge${changed_utf8_part}ndert)..
commit $head1
added (hinzugef${added_utf8_part}gt..
EOF
test_format body %b <<EOF
commit $head2
commit $head1
EOF
test_format raw-body %B <<EOF
commit $head2
$changed
commit $head1
$added
EOF
test_expect_success 'basic colors' '
cat >expect <<-EOF &&
commit $head2
<RED>foo<GREEN>bar<BLUE>baz<RESET>xyzzy
EOF
format="%Credfoo%Cgreenbar%Cbluebaz%Cresetxyzzy" &&
git rev-list --color --format="$format" -1 master >actual.raw &&
test_decode_color <actual.raw >actual &&
test_cmp expect actual
'
test_expect_success '%S is not a placeholder for rev-list yet' '
git rev-list --format="%S" -1 master | grep "%S"
'
test_expect_success 'advanced colors' '
cat >expect <<-EOF &&
commit $head2
<BOLD;RED;BYELLOW>foo<RESET>
EOF
format="%C(red yellow bold)foo%C(reset)" &&
git rev-list --color --format="$format" -1 master >actual.raw &&
test_decode_color <actual.raw >actual &&
test_cmp expect actual
'
for spec in \
"%Cred:$BASIC_COLOR" \
"%C(...):$COLOR" \
"%C(auto,...):$AUTO_COLOR"
do
desc=${spec%%:*}
color=${spec#*:}
test_expect_success "$desc does not enable color by default" '
git log --format=$color -1 >actual &&
has_no_color actual
'
test_expect_success "$desc enables colors for color.diff" '
git -c color.diff=always log --format=$color -1 >actual &&
has_color actual
'
test_expect_success "$desc enables colors for color.ui" '
git -c color.ui=always log --format=$color -1 >actual &&
has_color actual
'
test_expect_success "$desc respects --color" '
git log --format=$color -1 --color >actual &&
has_color actual
'
test_expect_success "$desc respects --no-color" '
git -c color.ui=always log --format=$color -1 --no-color >actual &&
has_no_color actual
'
test_expect_success TTY "$desc respects --color=auto (stdout is tty)" '
test_terminal git log --format=$color -1 --color=auto >actual &&
has_color actual
'
test_expect_success "$desc respects --color=auto (stdout not tty)" '
(
TERM=vt100 && export TERM &&
git log --format=$color -1 --color=auto >actual &&
has_no_color actual
)
'
done
test_expect_success '%C(always,...) enables color even without tty' '
git log --format=$ALWAYS_COLOR -1 >actual &&
has_color actual
'
test_expect_success '%C(auto) respects --color' '
git log --color --format="%C(auto)%H" -1 >actual.raw &&
test_decode_color <actual.raw >actual &&
echo "<YELLOW>$(git rev-parse HEAD)<RESET>" >expect &&
test_cmp expect actual
'
test_expect_success '%C(auto) respects --no-color' '
git log --no-color --format="%C(auto)%H" -1 >actual &&
git rev-parse HEAD >expect &&
test_cmp expect actual
'
test_expect_success 'rev-list %C(auto,...) respects --color' '
git rev-list --color --format="%C(auto,green)foo%C(auto,reset)" \
-1 HEAD >actual.raw &&
test_decode_color <actual.raw >actual &&
cat >expect <<-EOF &&
commit $(git rev-parse HEAD)
<GREEN>foo<RESET>
EOF
test_cmp expect actual
'
iconv -f utf-8 -t $test_encoding > commit-msg <<EOF
Test printing of complex bodies
This commit message is much longer than the others,
and it will be encoded in $test_encoding. We should therefore
include an ISO8859 character: ¡bueno!
EOF
test_expect_success 'setup complex body' '
git config i18n.commitencoding $test_encoding &&
echo change2 >foo && git commit -a -F commit-msg &&
head3=$(git rev-parse --verify HEAD) &&
head3_short=$(git rev-parse --short $head3)
'
test_format complex-encoding %e <<EOF
commit $head3
$test_encoding
commit $head2
$test_encoding
commit $head1
$test_encoding
EOF
test_format complex-subject %s <<EOF
commit $head3
Test printing of complex bodies
commit $head2
$changed_iso88591
commit $head1
$added_iso88591
EOF
test_format complex-subject-trunc "%<($truncate_count,trunc)%s" <<EOF
commit $head3
Test printing of c..
commit $head2
changed (ge${changed_utf8_part_iso88591}ndert)..
commit $head1
added (hinzugef${added_utf8_part_iso88591}gt..
EOF
test_format complex-subject-mtrunc "%<($truncate_count,mtrunc)%s" <<EOF
commit $head3
Test prin..ex bodies
commit $head2
changed (..dert) foo
commit $head1
added (hi..f${added_utf8_part_iso88591}gt) foo
EOF
test_format complex-subject-ltrunc "%<($truncate_count,ltrunc)%s" <<EOF
commit $head3
.. of complex bodies
commit $head2
..ged (ge${changed_utf8_part_iso88591}ndert) foo
commit $head1
.. (hinzugef${added_utf8_part_iso88591}gt) foo
EOF
test_expect_success 'prepare expected messages (for test %b)' '
cat <<-EOF >expected.utf-8 &&
commit $head3
This commit message is much longer than the others,
and it will be encoded in $test_encoding. We should therefore
include an ISO8859 character: ¡bueno!
commit $head2
commit $head1
EOF
iconv -f utf-8 -t $test_encoding expected.utf-8 >expected.ISO8859-1
'
test_format complex-body %b <expected.ISO8859-1
# Git uses i18n.commitEncoding if no i18n.logOutputEncoding set
# so unset i18n.commitEncoding to test encoding conversion
git config --unset i18n.commitEncoding
test_format complex-subject-commitencoding-unset %s <<EOF
commit $head3
Test printing of complex bodies
commit $head2
$changed
commit $head1
$added
EOF
test_format complex-subject-commitencoding-unset-trunc "%<($truncate_count,trunc)%s" <<EOF
commit $head3
Test printing of c..
commit $head2
changed (ge${changed_utf8_part}ndert)..
commit $head1
added (hinzugef${added_utf8_part}gt..
EOF
test_format complex-subject-commitencoding-unset-mtrunc "%<($truncate_count,mtrunc)%s" <<EOF
commit $head3
Test prin..ex bodies
commit $head2
changed (..dert) foo
commit $head1
added (hi..f${added_utf8_part}gt) foo
EOF
test_format complex-subject-commitencoding-unset-ltrunc "%<($truncate_count,ltrunc)%s" <<EOF
commit $head3
.. of complex bodies
commit $head2
..ged (ge${changed_utf8_part}ndert) foo
commit $head1
.. (hinzugef${added_utf8_part}gt) foo
EOF
test_format complex-body-commitencoding-unset %b <expected.utf-8
test_expect_success '%x00 shows NUL' '
echo >expect commit $head3 &&
echo >>expect fooQbar &&
git rev-list -1 --format=foo%x00bar HEAD >actual.nul &&
nul_to_q <actual.nul >actual &&
test_cmp expect actual
'
test_expect_success '%ad respects --date=' '
echo 2005-04-07 >expect.ad-short &&
git log -1 --date=short --pretty=tformat:%ad >output.ad-short master &&
test_cmp expect.ad-short output.ad-short
'
test_expect_success 'empty email' '
test_tick &&
C=$(GIT_AUTHOR_EMAIL= git commit-tree HEAD^{tree} </dev/null) &&
A=$(git show --pretty=format:%an,%ae,%ad%n -s $C) &&
verbose test "$A" = "A U Thor,,Thu Apr 7 15:14:13 2005 -0700"
'
test_expect_success 'del LF before empty (1)' '
git show -s --pretty=format:"%s%n%-b%nThanks%n" HEAD^^ >actual &&
test_line_count = 2 actual
'
test_expect_success 'del LF before empty (2)' '
git show -s --pretty=format:"%s%n%-b%nThanks%n" HEAD >actual &&
test_line_count = 6 actual &&
grep "^$" actual
'
test_expect_success 'add LF before non-empty (1)' '
git show -s --pretty=format:"%s%+b%nThanks%n" HEAD^^ >actual &&
test_line_count = 2 actual
'
test_expect_success 'add LF before non-empty (2)' '
git show -s --pretty=format:"%s%+b%nThanks%n" HEAD >actual &&
test_line_count = 6 actual &&
grep "^$" actual
'
test_expect_success 'add SP before non-empty (1)' '
git show -s --pretty=format:"%s% bThanks" HEAD^^ >actual &&
test $(wc -w <actual) = 3
'
test_expect_success 'add SP before non-empty (2)' '
git show -s --pretty=format:"%s% sThanks" HEAD^^ >actual &&
test $(wc -w <actual) = 6
'
test_expect_success '--abbrev' '
echo SHORT SHORT SHORT >expect2 &&
echo LONG LONG LONG >expect3 &&
git log -1 --format="%h %h %h" HEAD >actual1 &&
git log -1 --abbrev=5 --format="%h %h %h" HEAD >actual2 &&
git log -1 --abbrev=5 --format="%H %H %H" HEAD >actual3 &&
sed -e "s/$OID_REGEX/LONG/g" -e "s/$_x05/SHORT/g" <actual2 >fuzzy2 &&
sed -e "s/$OID_REGEX/LONG/g" -e "s/$_x05/SHORT/g" <actual3 >fuzzy3 &&
test_cmp expect2 fuzzy2 &&
test_cmp expect3 fuzzy3 &&
! test_cmp actual1 actual2
'
test_expect_success '%H is not affected by --abbrev-commit' '
git log -1 --format=%H --abbrev-commit --abbrev=20 HEAD >actual &&
len=$(wc -c <actual) &&
test $len = 41
'
test_expect_success '%h is not affected by --abbrev-commit' '
git log -1 --format=%h --abbrev-commit --abbrev=20 HEAD >actual &&
len=$(wc -c <actual) &&
test $len = 21
'
test_expect_success '"%h %gD: %gs" is same as git-reflog' '
git reflog >expect &&
git log -g --format="%h %gD: %gs" >actual &&
test_cmp expect actual
'
test_expect_success '"%h %gD: %gs" is same as git-reflog (with date)' '
git reflog --date=raw >expect &&
git log -g --format="%h %gD: %gs" --date=raw >actual &&
test_cmp expect actual
'
test_expect_success '"%h %gD: %gs" is same as git-reflog (with --abbrev)' '
git reflog --abbrev=13 --date=raw >expect &&
git log -g --abbrev=13 --format="%h %gD: %gs" --date=raw >actual &&
test_cmp expect actual
'
test_expect_success '%gd shortens ref name' '
echo "master@{0}" >expect.gd-short &&
git log -g -1 --format=%gd refs/heads/master >actual.gd-short &&
test_cmp expect.gd-short actual.gd-short
'
test_expect_success 'reflog identity' '
echo "C O Mitter:committer@example.com" >expect &&
git log -g -1 --format="%gn:%ge" >actual &&
test_cmp expect actual
'
test_expect_success 'oneline with empty message' '
git commit --allow-empty --cleanup=verbatim -m "$LF" &&
git commit --allow-empty --allow-empty-message &&
git rev-list --oneline HEAD >test.txt &&
test_line_count = 5 test.txt &&
git rev-list --oneline --graph HEAD >testg.txt &&
test_line_count = 5 testg.txt
'
test_expect_success 'single-character name is parsed correctly' '
git commit --author="a <a@example.com>" --allow-empty -m foo &&
echo "a <a@example.com>" >expect &&
git log -1 --format="%an <%ae>" >actual &&
test_cmp expect actual
'
test_expect_success 'unused %G placeholders are passed through' '
echo "%GX %G" >expect &&
git log -1 --format="%GX %G" >actual &&
test_cmp expect actual
'
test_done