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|
#!/bin/sh
test_description='git merge
Testing octopus merge when reducing parents to independent branches.'
. ./test-lib.sh
# 0 - 1
# \ 2
# \ 3
# \ 4 - 5
#
# So 1, 2, 3 and 5 should be kept, 4 should be avoided.
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 c0 &&
echo c3 > c3.c &&
git add c3.c &&
git commit -m c3 &&
git tag c3 &&
git reset --hard c0 &&
echo c4 > c4.c &&
git add c4.c &&
git commit -m c4 &&
git tag c4 &&
echo c5 > c5.c &&
git add c5.c &&
git commit -m c5 &&
git tag c5
'
test_expect_success 'merge c1 with c2, c3, c4, c5' '
git reset --hard c1 &&
git merge c2 c3 c4 c5 &&
test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
test "$(git rev-parse c1)" = "$(git rev-parse HEAD^1)" &&
test "$(git rev-parse c2)" = "$(git rev-parse HEAD^2)" &&
test "$(git rev-parse c3)" = "$(git rev-parse HEAD^3)" &&
test "$(git rev-parse c5)" = "$(git rev-parse HEAD^4)" &&
git diff --exit-code &&
test -f c0.c &&
test -f c1.c &&
test -f c2.c &&
test -f c3.c &&
test -f c4.c &&
test -f c5.c &&
git show --format=%s -s >actual &&
! grep c1 actual &&
grep c2 actual &&
grep c3 actual &&
! grep c4 actual &&
grep c5 actual
'
test_expect_success 'pull c2, c3, c4, c5 into c1' '
git reset --hard c1 &&
git pull . c2 c3 c4 c5 &&
test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
test "$(git rev-parse c1)" = "$(git rev-parse HEAD^1)" &&
test "$(git rev-parse c2)" = "$(git rev-parse HEAD^2)" &&
test "$(git rev-parse c3)" = "$(git rev-parse HEAD^3)" &&
test "$(git rev-parse c5)" = "$(git rev-parse HEAD^4)" &&
git diff --exit-code &&
test -f c0.c &&
test -f c1.c &&
test -f c2.c &&
test -f c3.c &&
test -f c4.c &&
test -f c5.c &&
git show --format=%s -s >actual &&
! grep c1 actual &&
grep c2 actual &&
grep c3 actual &&
! grep c4 actual &&
grep c5 actual
'
test_expect_success 'setup' '
for i in A B C D E
do
echo $i > $i.c &&
git add $i.c &&
git commit -m $i &&
git tag $i
done &&
git reset --hard A &&
for i in F G H I
do
echo $i > $i.c &&
git add $i.c &&
git commit -m $i &&
git tag $i
done
'
test_expect_success 'merge E and I' '
git reset --hard A &&
git merge E I
'
test_expect_success 'verify merge result' '
test $(git rev-parse HEAD^1) = $(git rev-parse E) &&
test $(git rev-parse HEAD^2) = $(git rev-parse I)
'
test_expect_success 'add conflicts' '
git reset --hard E &&
echo foo > file.c &&
git add file.c &&
git commit -m E2 &&
git tag E2 &&
git reset --hard I &&
echo bar >file.c &&
git add file.c &&
git commit -m I2 &&
git tag I2
'
test_expect_success 'merge E2 and I2, causing a conflict and resolve it' '
git reset --hard A &&
test_must_fail git merge E2 I2 &&
echo baz > file.c &&
git add file.c &&
git commit -m "resolve conflict"
'
test_expect_success 'verify merge result' '
test $(git rev-parse HEAD^1) = $(git rev-parse E2) &&
test $(git rev-parse HEAD^2) = $(git rev-parse I2)
'
test_expect_success 'fast-forward to redundant refs' '
git reset --hard c0 &&
git merge c4 c5
'
test_expect_success 'verify merge result' '
test $(git rev-parse HEAD) = $(git rev-parse c5)
'
test_expect_success 'merge up-to-date redundant refs' '
git reset --hard c5 &&
git merge c0 c4
'
test_expect_success 'verify merge result' '
test $(git rev-parse HEAD) = $(git rev-parse c5)
'
test_done
|
