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Diffstat (limited to 't/t7603-merge-reduce-heads.sh')
| -rwxr-xr-x | t/t7603-merge-reduce-heads.sh | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/t/t7603-merge-reduce-heads.sh b/t/t7603-merge-reduce-heads.sh new file mode 100755 index 000000000000..98948955ae50 --- /dev/null +++ b/t/t7603-merge-reduce-heads.sh @@ -0,0 +1,164 @@ +#!/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 |