t6042: add testcase covering rename/rename(2to1)/delete/delete conflict

If either side of a rename/rename(2to1) conflict is itself also involved
in a rename/delete conflict, then the conflict is a little more complex;
we can even have what I'd call a rename/rename(2to1)/delete/delete
conflict.  (In some ways, this is similar to a rename/rename(1to2)/add/add
conflict, as added in commit 3672c97148 ("merge-recursive: Fix working
copy handling for rename/rename/add/add", 2011-08-11)).  Add a testcase
for such a conflict.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2018-07-02 06:30:53 -07:00 committed by Junio C Hamano
parent 11d9ade10e
commit eee73388f2

View File

@ -759,4 +759,72 @@ test_expect_failure 'rad-check: rename/add/delete conflict' '
)
'
# Testcase rrdd, rename/rename(2to1)/delete/delete
# Commit O: foo, bar
# Commit A: rename foo->baz, rm bar
# Commit B: rename bar->baz, rm foo
# Expected: CONFLICT (rename/rename/delete/delete), two-way merged baz
test_expect_success 'rrdd-setup: rename/rename(2to1)/delete/delete conflict' '
test_create_repo rrdd &&
(
cd rrdd &&
echo foo >foo &&
echo bar >bar &&
git add foo bar &&
git commit -m O &&
git branch O &&
git branch A &&
git branch B &&
git checkout A &&
git mv foo baz &&
git rm bar &&
git commit -m "Rename foo, remove bar" &&
git checkout B &&
git mv bar baz &&
git rm foo &&
git commit -m "Rename bar, remove foo"
)
'
test_expect_failure 'rrdd-check: rename/rename(2to1)/delete/delete conflict' '
(
cd rrdd &&
git checkout A^0 &&
test_must_fail git merge -s recursive B^0 >out 2>err &&
# Not sure whether the output should contain just one
# "CONFLICT (rename/rename/delete/delete)" line, or if it
# should break it into three: "CONFLICT (rename/rename)" and
# two "CONFLICT (rename/delete)" lines; allow for either.
test_i18ngrep "CONFLICT (rename/rename)" out &&
test_i18ngrep "CONFLICT (rename.*delete)" out &&
test_must_be_empty err &&
git ls-files -s >file_count &&
test_line_count = 2 file_count &&
git ls-files -u >file_count &&
test_line_count = 2 file_count &&
git ls-files -o >file_count &&
test_line_count = 2 file_count &&
git rev-parse >actual \
:2:baz :3:baz &&
git rev-parse >expect \
O:foo O:bar &&
test_cmp file_is_missing foo &&
test_cmp file_is_missing bar &&
# baz should have two-way merged contents of the original
# contents of foo and bar; check that content from both sides
# is present.
grep foo baz &&
grep bar baz
)
'
test_done