git/t/t7607-merge-overwrite.sh
Junio C Hamano 47f16e8b11 Merge branch 'cb/maint-orphan-merge-noclobber' into maint
* cb/maint-orphan-merge-noclobber:
  do not overwrite untracked during merge from unborn branch
2010-12-02 11:27:13 -08:00

104 lines
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Executable File

#!/bin/sh
test_description='git-merge
Do not overwrite changes.'
. ./test-lib.sh
test_expect_success 'setup' '
echo c0 > c0.c &&
git add c0.c &&
git commit -m c0 &&
git tag c0 &&
echo c1 > c1.c &&
git add c1.c &&
git commit -m c1 &&
git tag c1 &&
git reset --hard c0 &&
echo c2 > c2.c &&
git add c2.c &&
git commit -m c2 &&
git tag c2 &&
git reset --hard c1 &&
echo "c1 a" > c1.c &&
git add c1.c &&
git commit -m "c1 a" &&
git tag c1a &&
echo "VERY IMPORTANT CHANGES" > important
'
test_expect_success 'will not overwrite untracked file' '
git reset --hard c1 &&
cat important > c2.c &&
test_must_fail git merge c2 &&
test_cmp important c2.c
'
test_expect_success 'will not overwrite new file' '
git reset --hard c1 &&
cat important > c2.c &&
git add c2.c &&
test_must_fail git merge c2 &&
test_cmp important c2.c
'
test_expect_success 'will not overwrite staged changes' '
git reset --hard c1 &&
cat important > c2.c &&
git add c2.c &&
rm c2.c &&
test_must_fail git merge c2 &&
git checkout c2.c &&
test_cmp important c2.c
'
test_expect_success 'will not overwrite removed file' '
git reset --hard c1 &&
git rm c1.c &&
git commit -m "rm c1.c" &&
cat important > c1.c &&
test_must_fail git merge c1a &&
test_cmp important c1.c
'
test_expect_success 'will not overwrite re-added file' '
git reset --hard c1 &&
git rm c1.c &&
git commit -m "rm c1.c" &&
cat important > c1.c &&
git add c1.c &&
test_must_fail git merge c1a &&
test_cmp important c1.c
'
test_expect_success 'will not overwrite removed file with staged changes' '
git reset --hard c1 &&
git rm c1.c &&
git commit -m "rm c1.c" &&
cat important > c1.c &&
git add c1.c &&
rm c1.c &&
test_must_fail git merge c1a &&
git checkout c1.c &&
test_cmp important c1.c
'
cat >expect <<\EOF
error: Untracked working tree file 'c0.c' would be overwritten by merge.
fatal: read-tree failed
EOF
test_expect_success 'will not overwrite untracked file on unborn branch' '
git reset --hard c0 &&
git rm -fr . &&
git checkout --orphan new &&
cp important c0.c &&
test_must_fail git merge c0 2>out &&
test_cmp out expect &&
test_path_is_missing .git/MERGE_HEAD &&
test_cmp important c0.c
'
test_done