git-commit-vandalism/t/t4122-apply-symlink-inside.sh
Johannes Sixt 704a3143d5 Use prerequisite tags to skip tests that depend on symbolic links
Many tests depend on that symbolic links work.  This introduces a check
that sets the prerequisite tag SYMLINKS if the file system supports
symbolic links.  Since so many tests have to check for this prerequisite,
we do the check in test-lib.sh, so that we don't need to repeat the test
in many scripts.

To check for 'ln -s' failures, you can use a FAT partition on Linux:

$ mkdosfs -C git-on-fat 1000000
$ sudo mount -o loop,uid=j6t,gid=users,shortname=winnt git-on-fat /mnt

Clone git to /mnt and

$ GIT_SKIP_TESTS='t0001.1[34] t0010 t1301 t403[34] t4129.[47] t5701.7
          t7701.3 t9100 t9101.26 t9119 t9124.[67] t9200.10 t9600.6' \
        make test

(These additionally skipped tests depend on POSIX permissions that FAT on
Linux does not provide.)

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
2009-03-22 17:26:44 +01:00

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#!/bin/sh
test_description='apply to deeper directory without getting fooled with symlink'
. ./test-lib.sh
if ! test_have_prereq SYMLINKS
then
say 'Symbolic links not supported, skipping tests.'
test_done
exit
fi
lecho () {
for l_
do
echo "$l_"
done
}
test_expect_success setup '
mkdir -p arch/i386/boot arch/x86_64 &&
lecho 1 2 3 4 5 >arch/i386/boot/Makefile &&
ln -s ../i386/boot arch/x86_64/boot &&
git add . &&
test_tick &&
git commit -m initial &&
git branch test &&
rm arch/x86_64/boot &&
mkdir arch/x86_64/boot &&
lecho 2 3 4 5 6 >arch/x86_64/boot/Makefile &&
git add . &&
test_tick &&
git commit -a -m second &&
git format-patch --binary -1 --stdout >test.patch
'
test_expect_success apply '
git checkout test &&
git diff --exit-code test &&
git diff --exit-code --cached test &&
git apply --index test.patch
'
test_expect_success 'check result' '
git diff --exit-code master &&
git diff --exit-code --cached master &&
test_tick &&
git commit -m replay &&
T1=$(git rev-parse "master^{tree}") &&
T2=$(git rev-parse "HEAD^{tree}") &&
test "z$T1" = "z$T2"
'
test_done