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git/t/t4012-diff-binary.sh
Eric Sunshine 8327974859 t: use test_might_fail() instead of manipulating exit code manually
These tests manually coerce the exit code of invoked commands to
"success" when they don't care if the command succeeds or fails since
failure of those commands should not cause the test to fail overall.
In doing so, they intentionally break the &&-chain. Modernize by
replacing manual exit code management with test_might_fail() and a
normal &&-chain.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-03 12:38:04 -07:00

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#!/bin/sh
#
# Copyright (c) 2006 Junio C Hamano
#
test_description='Binary diff and apply
'
. ./test-lib.sh
cat >expect.binary-numstat <<\EOF
1 1 a
- - b
1 1 c
- - d
EOF
test_expect_success 'prepare repository' '
echo AIT >a && echo BIT >b && echo CIT >c && echo DIT >d &&
git update-index --add a b c d &&
echo git >a &&
cat "$TEST_DIRECTORY"/test-binary-1.png >b &&
echo git >c &&
cat b b >d
'
cat > expected <<\EOF
a | 2 +-
b | Bin
c | 2 +-
d | Bin
4 files changed, 2 insertions(+), 2 deletions(-)
EOF
test_expect_success 'apply --stat output for binary file change' '
git diff >diff &&
git apply --stat --summary <diff >current &&
test_i18ncmp expected current
'
test_expect_success 'diff --shortstat output for binary file change' '
tail -n 1 expected >expect &&
git diff --shortstat >current &&
test_i18ncmp expect current
'
test_expect_success 'diff --shortstat output for binary file change only' '
echo " 1 file changed, 0 insertions(+), 0 deletions(-)" >expected &&
git diff --shortstat -- b >current &&
test_i18ncmp expected current
'
test_expect_success 'apply --numstat notices binary file change' '
git diff >diff &&
git apply --numstat <diff >current &&
test_cmp expect.binary-numstat current
'
test_expect_success 'apply --numstat understands diff --binary format' '
git diff --binary >diff &&
git apply --numstat <diff >current &&
test_cmp expect.binary-numstat current
'
# apply needs to be able to skip the binary material correctly
# in order to report the line number of a corrupt patch.
test_expect_success C_LOCALE_OUTPUT 'apply detecting corrupt patch correctly' '
git diff >output &&
sed -e "s/-CIT/xCIT/" <output >broken &&
test_must_fail git apply --stat --summary broken 2>detected &&
detected=$(cat detected) &&
detected=$(expr "$detected" : "error.*at line \\([0-9]*\\)\$") &&
detected=$(sed -ne "${detected}p" broken) &&
test "$detected" = xCIT
'
test_expect_success C_LOCALE_OUTPUT 'apply detecting corrupt patch correctly' '
git diff --binary | sed -e "s/-CIT/xCIT/" >broken &&
test_must_fail git apply --stat --summary broken 2>detected &&
detected=$(cat detected) &&
detected=$(expr "$detected" : "error.*at line \\([0-9]*\\)\$") &&
detected=$(sed -ne "${detected}p" broken) &&
test "$detected" = xCIT
'
test_expect_success 'initial commit' 'git commit -a -m initial'
# Try removal (b), modification (d), and creation (e).
test_expect_success 'diff-index with --binary' '
echo AIT >a && mv b e && echo CIT >c && cat e >d &&
git update-index --add --remove a b c d e &&
tree0=$(git write-tree) &&
git diff --cached --binary >current &&
git apply --stat --summary current
'
test_expect_success 'apply binary patch' '
git reset --hard &&
git apply --binary --index <current &&
tree1=$(git write-tree) &&
test "$tree1" = "$tree0"
'
test_expect_success 'diff --no-index with binary creation' '
echo Q | q_to_nul >binary &&
# hide error code from diff, which just indicates differences
test_might_fail git diff --binary --no-index /dev/null binary >current &&
rm binary &&
git apply --binary <current &&
echo Q >expected &&
nul_to_q <binary >actual &&
test_cmp expected actual
'
cat >expect <<EOF
binfile | Bin 0 -> 1026 bytes
textfile | 10000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
EOF
test_expect_success 'diff --stat with binary files and big change count' '
printf "\01\00%1024d" 1 >binfile &&
git add binfile &&
i=0 &&
while test $i -lt 10000; do
echo $i &&
i=$(($i + 1))
done >textfile &&
git add textfile &&
git diff --cached --stat binfile textfile >output &&
grep " | " output >actual &&
test_cmp expect actual
'
test_done