git/t/t4114-apply-typechange.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
#
# Copyright (c) 2006 Eric Wong
#
test_description='git apply should not get confused with type changes.
'
. ./test-lib.sh
if ! test_have_prereq SYMLINKS
then
say 'Symbolic links not supported, skipping tests.'
test_done
exit
fi
test_expect_success 'setup repository and commits' '
echo "hello world" > foo &&
echo "hi planet" > bar &&
git update-index --add foo bar &&
git commit -m initial &&
git branch initial &&
rm -f foo &&
ln -s bar foo &&
git update-index foo &&
git commit -m "foo symlinked to bar" &&
git branch foo-symlinked-to-bar &&
rm -f foo &&
echo "how far is the sun?" > foo &&
git update-index foo &&
git commit -m "foo back to file" &&
git branch foo-back-to-file &&
printf "\0" > foo &&
git update-index foo &&
git commit -m "foo becomes binary" &&
git branch foo-becomes-binary &&
rm -f foo &&
git update-index --remove foo &&
mkdir foo &&
echo "if only I knew" > foo/baz &&
git update-index --add foo/baz &&
git commit -m "foo becomes a directory" &&
git branch "foo-becomes-a-directory" &&
echo "hello world" > foo/baz &&
git update-index foo/baz &&
git commit -m "foo/baz is the original foo" &&
git branch foo-baz-renamed-from-foo
'
test_expect_success 'file renamed from foo to foo/baz' '
git checkout -f initial &&
git diff-tree -M -p HEAD foo-baz-renamed-from-foo > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'file renamed from foo/baz to foo' '
git checkout -f foo-baz-renamed-from-foo &&
git diff-tree -M -p HEAD initial > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'directory becomes file' '
git checkout -f foo-becomes-a-directory &&
git diff-tree -p HEAD initial > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'file becomes directory' '
git checkout -f initial &&
git diff-tree -p HEAD foo-becomes-a-directory > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'file becomes symlink' '
git checkout -f initial &&
git diff-tree -p HEAD foo-symlinked-to-bar > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'symlink becomes file' '
git checkout -f foo-symlinked-to-bar &&
git diff-tree -p HEAD foo-back-to-file > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'binary file becomes symlink' '
git checkout -f foo-becomes-binary &&
git diff-tree -p --binary HEAD foo-symlinked-to-bar > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'symlink becomes binary file' '
git checkout -f foo-symlinked-to-bar &&
git diff-tree -p --binary HEAD foo-becomes-binary > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'symlink becomes directory' '
git checkout -f foo-symlinked-to-bar &&
git diff-tree -p HEAD foo-becomes-a-directory > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_expect_success 'directory becomes symlink' '
git checkout -f foo-becomes-a-directory &&
git diff-tree -p HEAD foo-symlinked-to-bar > patch &&
git apply --index < patch
'
test_debug 'cat patch'
test_done