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t6036: criss-cross + rename/rename(1to2)/add-dest + simple modify

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This is another testcase trying to exercise the virtual merge base
creation in the rename/rename(1to2) code.  A testcase is added that we
should be able to merge cleanly, but which requires a virtual merge base
to be created that correctly handles rename/add-dest conflicts within the
rename/rename(1to2) testcase handling.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2011-08-11 23:20:28 -06:00 committed by Junio C Hamano
parent 35a74abff3
commit b630b81470
1 changed files with 69 additions and 0 deletions
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69
t/t6036-recursive-corner-cases.sh
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@ -704,4 +704,73 @@ test_expect_failure 'detect rename/rename/add-source for virtual merge-base' '
test "$(cat a)" = "$(printf "1\n2\n3\n4\n5\n6\n7\n8\n")"
'
#
# criss-cross with rename/rename(1to2)/add-dest + simple modify:
#
# B D
# o---o
# / \ / \
# A o X ? F
# \ / \ /
# o---o
# C E
#
# Commit A: new file: a
# Commit B: rename a->b, add c
# Commit C: rename a->c
# Commit D: merge B&C, keeping A:a and B:c
# Commit E: merge B&C, keeping A:a and slightly modified c from B
#
# Merging commits D & E should result in no conflict. The virtual merge
# base of B & C needs to not delete B:c for that to work, though...
test_expect_success 'setup criss-cross+rename/rename/add-dest + simple modify' '
git rm -rf . &&
git clean -fdqx &&
rm -rf .git &&
git init &&
>a &&
git add a &&
git commit -m A &&
git tag A &&
git checkout -b B A &&
git mv a b &&
printf "1\n2\n3\n4\n5\n6\n7\n" >c &&
git add c &&
git commit -m B &&
git checkout -b C A &&
git mv a c &&
git commit -m C &&
git checkout B^0 &&
git merge --no-commit -s ours C^0 &&
git mv b a &&
git commit -m "D is like B but renames b back to a" &&
git tag D &&
git checkout B^0 &&
git merge --no-commit -s ours C^0 &&
git mv b a &&
echo 8 >>c &&
git add c &&
git commit -m "E like D but has mod in c" &&
git tag E
'
test_expect_failure 'virtual merge base handles rename/rename(1to2)/add-dest' '
git checkout D^0 &&
git merge -s recursive E^0 &&
test 2 -eq $(git ls-files -s | wc -l) &&
test 0 -eq $(git ls-files -u | wc -l) &&
test 0 -eq $(git ls-files -o | wc -l) &&
test $(git rev-parse HEAD:a) = $(git rev-parse A:a) &&
test $(git rev-parse HEAD:c) = $(git rev-parse E:c)
'
test_done