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t6042: add testcase covering rename/add/delete conflict type

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If a file is renamed on one side of history, and the other side of history
both deletes the original file and adds a new unrelated file in the way of
the rename, then we have what I call a rename/add/delete conflict.  Add a
testcase covering this scenario.

Reported-by: Robert Dailey <rcdailey.lists@gmail.com>
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 06:30:52 -07:00
committed by Junio C Hamano
parent e3331758f1
commit 11d9ade10e
1 changed files with 66 additions and 0 deletions
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66
t/t6042-merge-rename-corner-cases.sh
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@ -693,4 +693,70 @@ test_expect_success 'rename/rename/add-dest merge still knows about conflicting
)
'
# Testcase rad, rename/add/delete
# Commit O: foo
# Commit A: rm foo, add different bar
# Commit B: rename foo->bar
# Expected: CONFLICT (rename/add/delete), two-way merged bar
test_expect_success 'rad-setup: rename/add/delete conflict' '
test_create_repo rad &&
(
cd rad &&
echo "original file" >foo &&
git add foo &&
git commit -m "original" &&
git branch O &&
git branch A &&
git branch B &&
git checkout A &&
git rm foo &&
echo "different file" >bar &&
git add bar &&
git commit -m "Remove foo, add bar" &&
git checkout B &&
git mv foo bar &&
git commit -m "rename foo to bar"
)
'
test_expect_failure 'rad-check: rename/add/delete conflict' '
(
cd rad &&
git checkout B^0 &&
test_must_fail git merge -s recursive A^0 >out 2>err &&
# Not sure whether the output should contain just one
# "CONFLICT (rename/add/delete)" line, or if it should break
# it into a pair of "CONFLICT (rename/delete)" and
# "CONFLICT (rename/add)"; allow for either.
test_i18ngrep "CONFLICT (rename.*add)" 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:bar :3:bar &&
git rev-parse >expect \
B:bar A:bar &&
test_cmp file_is_missing foo &&
# bar should have two-way merged contents of the different
# versions of bar; check that content from both sides is
# present.
grep original bar &&
grep different bar
)
'
test_done