git/t/t4012-diff-binary.sh

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#!/bin/sh
#
# Copyright (c) 2006 Junio C Hamano
#
test_description='Binary diff and apply
'
. ./test-lib.sh
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 "$TEST_DIRECTORY"/test4012.png >b &&
echo git >c &&
cat b b >d'
cat > expected <<\EOF
a | 2 +-
b | Bin
c | 2 +-
d | Bin
4 files changed, 2 insertions(+), 2 deletions(-)
EOF
test_expect_success 'diff without --binary' \
'git diff | git apply --stat --summary >current &&
test_cmp expected current'
test_expect_success 'diff with --binary' \
'git diff --binary | git apply --stat --summary >current &&
test_cmp expected current'
# apply needs to be able to skip the binary material correctly
# in order to report the line number of a corrupt patch.
test_expect_success 'apply detecting corrupt patch correctly' \
'git diff | sed -e 's/-CIT/xCIT/' >broken &&
if git apply --stat --summary broken 2>detected
then
echo unhappy - should have detected an error
(exit 1)
else
echo happy
fi &&
detected=`cat detected` &&
detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
detected=`sed -ne "${detected}p" broken` &&
test "$detected" = xCIT'
test_expect_success 'apply detecting corrupt patch correctly' \
'git diff --binary | sed -e 's/-CIT/xCIT/' >broken &&
if git apply --stat --summary broken 2>detected
then
echo unhappy - should have detected an error
(exit 1)
else
echo happy
fi &&
detected=`cat detected` &&
detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
detected=`sed -ne "${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"'
q_to_nul() {
perl -pe 'y/Q/\000/'
}
nul_to_q() {
perl -pe 'y/\000/Q/'
}
test_expect_success 'diff --no-index with binary creation' '
echo Q | q_to_nul >binary &&
(:# hide error code from diff, which just indicates differences
git diff --binary --no-index /dev/null binary >current ||
true
) &&
rm binary &&
git apply --binary <current &&
echo Q >expected &&
nul_to_q <binary >actual &&
test_cmp expected actual
'
test_done