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5802f81b14
This is used by "git pull" to construct a merge message from list of remote refs. When pulling redundant set of refs, however, it did not filter them even though the merge itself discards them as unnecessary. Teach the command to do the same for consistency. Signed-off-by: Junio C Hamano <gitster@pobox.com>
165 lines
3.5 KiB
Bash
Executable File
165 lines
3.5 KiB
Bash
Executable File
#!/bin/sh
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test_description='git merge
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Testing octopus merge when reducing parents to independent branches.'
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. ./test-lib.sh
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# 0 - 1
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# \ 2
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# \ 3
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# \ 4 - 5
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#
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# So 1, 2, 3 and 5 should be kept, 4 should be avoided.
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test_expect_success 'setup' '
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echo c0 > c0.c &&
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git add c0.c &&
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git commit -m c0 &&
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git tag c0 &&
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echo c1 > c1.c &&
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git add c1.c &&
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git commit -m c1 &&
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git tag c1 &&
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git reset --hard c0 &&
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echo c2 > c2.c &&
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git add c2.c &&
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git commit -m c2 &&
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git tag c2 &&
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git reset --hard c0 &&
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echo c3 > c3.c &&
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git add c3.c &&
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git commit -m c3 &&
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git tag c3 &&
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git reset --hard c0 &&
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echo c4 > c4.c &&
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git add c4.c &&
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git commit -m c4 &&
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git tag c4 &&
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echo c5 > c5.c &&
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git add c5.c &&
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git commit -m c5 &&
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git tag c5
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'
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test_expect_success 'merge c1 with c2, c3, c4, c5' '
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git reset --hard c1 &&
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git merge c2 c3 c4 c5 &&
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test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
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test "$(git rev-parse c1)" = "$(git rev-parse HEAD^1)" &&
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test "$(git rev-parse c2)" = "$(git rev-parse HEAD^2)" &&
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test "$(git rev-parse c3)" = "$(git rev-parse HEAD^3)" &&
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test "$(git rev-parse c5)" = "$(git rev-parse HEAD^4)" &&
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git diff --exit-code &&
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test -f c0.c &&
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test -f c1.c &&
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test -f c2.c &&
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test -f c3.c &&
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test -f c4.c &&
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test -f c5.c &&
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git show --format=%s -s >actual &&
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! grep c1 actual &&
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grep c2 actual &&
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grep c3 actual &&
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! grep c4 actual &&
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grep c5 actual
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'
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test_expect_success 'pull c2, c3, c4, c5 into c1' '
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git reset --hard c1 &&
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git pull . c2 c3 c4 c5 &&
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test "$(git rev-parse c1)" != "$(git rev-parse HEAD)" &&
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test "$(git rev-parse c1)" = "$(git rev-parse HEAD^1)" &&
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test "$(git rev-parse c2)" = "$(git rev-parse HEAD^2)" &&
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test "$(git rev-parse c3)" = "$(git rev-parse HEAD^3)" &&
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test "$(git rev-parse c5)" = "$(git rev-parse HEAD^4)" &&
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git diff --exit-code &&
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test -f c0.c &&
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test -f c1.c &&
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test -f c2.c &&
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test -f c3.c &&
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test -f c4.c &&
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test -f c5.c &&
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git show --format=%s -s >actual &&
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! grep c1 actual &&
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grep c2 actual &&
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grep c3 actual &&
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! grep c4 actual &&
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grep c5 actual
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'
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test_expect_success 'setup' '
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for i in A B C D E
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do
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echo $i > $i.c &&
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git add $i.c &&
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git commit -m $i &&
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git tag $i
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done &&
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git reset --hard A &&
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for i in F G H I
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do
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echo $i > $i.c &&
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git add $i.c &&
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git commit -m $i &&
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git tag $i
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done
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'
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test_expect_success 'merge E and I' '
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git reset --hard A &&
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git merge E I
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'
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test_expect_success 'verify merge result' '
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test $(git rev-parse HEAD^1) = $(git rev-parse E) &&
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test $(git rev-parse HEAD^2) = $(git rev-parse I)
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'
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test_expect_success 'add conflicts' '
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git reset --hard E &&
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echo foo > file.c &&
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git add file.c &&
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git commit -m E2 &&
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git tag E2 &&
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git reset --hard I &&
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echo bar >file.c &&
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git add file.c &&
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git commit -m I2 &&
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git tag I2
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'
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test_expect_success 'merge E2 and I2, causing a conflict and resolve it' '
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git reset --hard A &&
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test_must_fail git merge E2 I2 &&
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echo baz > file.c &&
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git add file.c &&
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git commit -m "resolve conflict"
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'
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test_expect_success 'verify merge result' '
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test $(git rev-parse HEAD^1) = $(git rev-parse E2) &&
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test $(git rev-parse HEAD^2) = $(git rev-parse I2)
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'
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test_expect_success 'fast-forward to redundant refs' '
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git reset --hard c0 &&
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git merge c4 c5
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'
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test_expect_success 'verify merge result' '
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test $(git rev-parse HEAD) = $(git rev-parse c5)
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'
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test_expect_success 'merge up-to-date redundant refs' '
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git reset --hard c5 &&
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git merge c0 c4
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'
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test_expect_success 'verify merge result' '
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test $(git rev-parse HEAD) = $(git rev-parse c5)
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'
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test_done
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