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Diffstat (limited to 't/t7600-merge.sh')
| -rwxr-xr-x | t/t7600-merge.sh | 604 |
1 files changed, 604 insertions, 0 deletions
diff --git a/t/t7600-merge.sh b/t/t7600-merge.sh new file mode 100755 index 0000000000..57f6d2bae7 --- /dev/null +++ b/t/t7600-merge.sh @@ -0,0 +1,604 @@ +#!/bin/sh +# +# Copyright (c) 2007 Lars Hjemli +# + +test_description='git merge + +Testing basic merge operations/option parsing.' + +. ./test-lib.sh + +cat >file <<EOF +1 +2 +3 +4 +5 +6 +7 +8 +9 +EOF + +cat >file.1 <<EOF +1 X +2 +3 +4 +5 +6 +7 +8 +9 +EOF + +cat >file.5 <<EOF +1 +2 +3 +4 +5 X +6 +7 +8 +9 +EOF + +cat >file.9 <<EOF +1 +2 +3 +4 +5 +6 +7 +8 +9 X +EOF + +cat >result.1 <<EOF +1 X +2 +3 +4 +5 +6 +7 +8 +9 +EOF + +cat >result.1-5 <<EOF +1 X +2 +3 +4 +5 X +6 +7 +8 +9 +EOF + +cat >result.1-5-9 <<EOF +1 X +2 +3 +4 +5 X +6 +7 +8 +9 X +EOF + +create_merge_msgs() { + echo "Merge commit 'c2'" >msg.1-5 && + echo "Merge commit 'c2'; commit 'c3'" >msg.1-5-9 && + echo "Squashed commit of the following:" >squash.1 && + echo >>squash.1 && + git log --no-merges ^HEAD c1 >>squash.1 && + echo "Squashed commit of the following:" >squash.1-5 && + echo >>squash.1-5 && + git log --no-merges ^HEAD c2 >>squash.1-5 && + echo "Squashed commit of the following:" >squash.1-5-9 && + echo >>squash.1-5-9 && + git log --no-merges ^HEAD c2 c3 >>squash.1-5-9 && + echo > msg.nolog && + echo "* commit 'c3':" >msg.log && + echo " commit 3" >>msg.log && + echo >>msg.log +} + +verify_diff() { + if ! test_cmp "$1" "$2" + then + echo "$3" + false + fi +} + +verify_merge() { + verify_diff "$2" "$1" "[OOPS] bad merge result" && + if test $(git ls-files -u | wc -l) -gt 0 + then + echo "[OOPS] unmerged files" + false + fi && + if test_must_fail git diff --exit-code + then + echo "[OOPS] working tree != index" + false + fi && + if test -n "$3" + then + git show -s --pretty=format:%s HEAD >msg.act && + verify_diff "$3" msg.act "[OOPS] bad merge message" + fi +} + +verify_head() { + if test "$1" != "$(git rev-parse HEAD)" + then + echo "[OOPS] HEAD != $1" + false + fi +} + +verify_parents() { + i=1 + while test $# -gt 0 + do + if test "$1" != "$(git rev-parse HEAD^$i)" + then + echo "[OOPS] HEAD^$i != $1" + return 1 + fi + i=$(expr $i + 1) + shift + done +} + +verify_mergeheads() { + i=1 + if ! test -f .git/MERGE_HEAD + then + echo "[OOPS] MERGE_HEAD is missing" + false + fi && + while test $# -gt 0 + do + head=$(head -n $i .git/MERGE_HEAD | sed -ne \$p) + if test "$1" != "$head" + then + echo "[OOPS] MERGE_HEAD $i != $1" + return 1 + fi + i=$(expr $i + 1) + shift + done +} + +verify_no_mergehead() { + if test -f .git/MERGE_HEAD + then + echo "[OOPS] MERGE_HEAD exists" + false + fi +} + + +test_expect_success 'setup' ' + git add file && + test_tick && + git commit -m "commit 0" && + git tag c0 && + c0=$(git rev-parse HEAD) && + cp file.1 file && + git add file && + test_tick && + git commit -m "commit 1" && + git tag c1 && + c1=$(git rev-parse HEAD) && + git reset --hard "$c0" && + cp file.5 file && + git add file && + test_tick && + git commit -m "commit 2" && + git tag c2 && + c2=$(git rev-parse HEAD) && + git reset --hard "$c0" && + cp file.9 file && + git add file && + test_tick && + git commit -m "commit 3" && + git tag c3 && + c3=$(git rev-parse HEAD) + git reset --hard "$c0" && + create_merge_msgs +' + +test_debug 'gitk --all' + +test_expect_success 'test option parsing' ' + test_must_fail git merge -$ c1 && + test_must_fail git merge --no-such c1 && + test_must_fail git merge -s foobar c1 && + test_must_fail git merge -s=foobar c1 && + test_must_fail git merge -m && + test_must_fail git merge +' + +test_expect_success 'reject non-strategy with a git-merge-foo name' ' + test_must_fail git merge -s index c1 +' + +test_expect_success 'merge c0 with c1' ' + git reset --hard c0 && + git merge c1 && + verify_merge file result.1 && + verify_head "$c1" +' + +test_debug 'gitk --all' + +test_expect_success 'merge c0 with c1 with --ff-only' ' + git reset --hard c0 && + git merge --ff-only c1 && + git merge --ff-only HEAD c0 c1 && + verify_merge file result.1 && + verify_head "$c1" +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2' ' + git reset --hard c1 && + test_tick && + git merge c2 && + verify_merge file result.1-5 msg.1-5 && + verify_parents $c1 $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 and c3' ' + git reset --hard c1 && + test_tick && + git merge c2 c3 && + verify_merge file result.1-5-9 msg.1-5-9 && + verify_parents $c1 $c2 $c3 +' + +test_debug 'gitk --all' + +test_expect_success 'failing merges with --ff-only' ' + git reset --hard c1 && + test_tick && + test_must_fail git merge --ff-only c2 && + test_must_fail git merge --ff-only c3 && + test_must_fail git merge --ff-only c2 c3 +' + +test_expect_success 'merge c0 with c1 (no-commit)' ' + git reset --hard c0 && + git merge --no-commit c1 && + verify_merge file result.1 && + verify_head $c1 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 (no-commit)' ' + git reset --hard c1 && + git merge --no-commit c2 && + verify_merge file result.1-5 && + verify_head $c1 && + verify_mergeheads $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 and c3 (no-commit)' ' + git reset --hard c1 && + git merge --no-commit c2 c3 && + verify_merge file result.1-5-9 && + verify_head $c1 && + verify_mergeheads $c2 $c3 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c0 with c1 (squash)' ' + git reset --hard c0 && + git merge --squash c1 && + verify_merge file result.1 && + verify_head $c0 && + verify_no_mergehead && + verify_diff squash.1 .git/SQUASH_MSG "[OOPS] bad squash message" +' + +test_debug 'gitk --all' + +test_expect_success 'merge c0 with c1 (squash, ff-only)' ' + git reset --hard c0 && + git merge --squash --ff-only c1 && + verify_merge file result.1 && + verify_head $c0 && + verify_no_mergehead && + verify_diff squash.1 .git/SQUASH_MSG "[OOPS] bad squash message" +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 (squash)' ' + git reset --hard c1 && + git merge --squash c2 && + verify_merge file result.1-5 && + verify_head $c1 && + verify_no_mergehead && + verify_diff squash.1-5 .git/SQUASH_MSG "[OOPS] bad squash message" +' + +test_debug 'gitk --all' + +test_expect_success 'unsuccesful merge of c1 with c2 (squash, ff-only)' ' + git reset --hard c1 && + test_must_fail git merge --squash --ff-only c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 and c3 (squash)' ' + git reset --hard c1 && + git merge --squash c2 c3 && + verify_merge file result.1-5-9 && + verify_head $c1 && + verify_no_mergehead && + verify_diff squash.1-5-9 .git/SQUASH_MSG "[OOPS] bad squash message" +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 (no-commit in config)' ' + git reset --hard c1 && + git config branch.master.mergeoptions "--no-commit" && + git merge c2 && + verify_merge file result.1-5 && + verify_head $c1 && + verify_mergeheads $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 (squash in config)' ' + git reset --hard c1 && + git config branch.master.mergeoptions "--squash" && + git merge c2 && + verify_merge file result.1-5 && + verify_head $c1 && + verify_no_mergehead && + verify_diff squash.1-5 .git/SQUASH_MSG "[OOPS] bad squash message" +' + +test_debug 'gitk --all' + +test_expect_success 'override config option -n with --summary' ' + git reset --hard c1 && + git config branch.master.mergeoptions "-n" && + test_tick && + git merge --summary c2 >diffstat.txt && + verify_merge file result.1-5 msg.1-5 && + verify_parents $c1 $c2 && + if ! grep "^ file | *2 +-$" diffstat.txt + then + echo "[OOPS] diffstat was not generated with --summary" + false + fi +' + +test_expect_success 'override config option -n with --stat' ' + git reset --hard c1 && + git config branch.master.mergeoptions "-n" && + test_tick && + git merge --stat c2 >diffstat.txt && + verify_merge file result.1-5 msg.1-5 && + verify_parents $c1 $c2 && + if ! grep "^ file | *2 +-$" diffstat.txt + then + echo "[OOPS] diffstat was not generated with --stat" + false + fi +' + +test_debug 'gitk --all' + +test_expect_success 'override config option --stat' ' + git reset --hard c1 && + git config branch.master.mergeoptions "--stat" && + test_tick && + git merge -n c2 >diffstat.txt && + verify_merge file result.1-5 msg.1-5 && + verify_parents $c1 $c2 && + if grep "^ file | *2 +-$" diffstat.txt + then + echo "[OOPS] diffstat was generated" + false + fi +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 (override --no-commit)' ' + git reset --hard c1 && + git config branch.master.mergeoptions "--no-commit" && + test_tick && + git merge --commit c2 && + verify_merge file result.1-5 msg.1-5 && + verify_parents $c1 $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c2 (override --squash)' ' + git reset --hard c1 && + git config branch.master.mergeoptions "--squash" && + test_tick && + git merge --no-squash c2 && + verify_merge file result.1-5 msg.1-5 && + verify_parents $c1 $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c0 with c1 (no-ff)' ' + git reset --hard c0 && + git config branch.master.mergeoptions "" && + test_tick && + git merge --no-ff c1 && + verify_merge file result.1 && + verify_parents $c0 $c1 +' + +test_debug 'gitk --all' + +test_expect_success 'combining --squash and --no-ff is refused' ' + test_must_fail git merge --squash --no-ff c1 && + test_must_fail git merge --no-ff --squash c1 +' + +test_expect_success 'combining --ff-only and --no-ff is refused' ' + test_must_fail git merge --ff-only --no-ff c1 && + test_must_fail git merge --no-ff --ff-only c1 +' + +test_expect_success 'merge c0 with c1 (ff overrides no-ff)' ' + git reset --hard c0 && + git config branch.master.mergeoptions "--no-ff" && + git merge --ff c1 && + verify_merge file result.1 && + verify_head $c1 +' + +test_expect_success 'merge log message' ' + git reset --hard c0 && + git merge --no-log c2 && + git show -s --pretty=format:%b HEAD >msg.act && + verify_diff msg.nolog msg.act "[OOPS] bad merge log message" && + + git merge --log c3 && + git show -s --pretty=format:%b HEAD >msg.act && + verify_diff msg.log msg.act "[OOPS] bad merge log message" && + + git reset --hard HEAD^ && + git config merge.log yes && + git merge c3 && + git show -s --pretty=format:%b HEAD >msg.act && + verify_diff msg.log msg.act "[OOPS] bad merge log message" +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c0, c2, c0, and c1' ' + git reset --hard c1 && + git config branch.master.mergeoptions "" && + test_tick && + git merge c0 c2 c0 c1 && + verify_merge file result.1-5 && + verify_parents $c1 $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c0, c2, c0, and c1' ' + git reset --hard c1 && + git config branch.master.mergeoptions "" && + test_tick && + git merge c0 c2 c0 c1 && + verify_merge file result.1-5 && + verify_parents $c1 $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge c1 with c1 and c2' ' + git reset --hard c1 && + git config branch.master.mergeoptions "" && + test_tick && + git merge c1 c2 && + verify_merge file result.1-5 && + verify_parents $c1 $c2 +' + +test_debug 'gitk --all' + +test_expect_success 'merge fast-forward in a dirty tree' ' + git reset --hard c0 && + mv file file1 && + cat file1 >file && + rm -f file1 && + git merge c2 +' + +test_debug 'gitk --all' + +test_expect_success 'in-index merge' ' + git reset --hard c0 && + git merge --no-ff -s resolve c1 > out && + grep "Wonderful." out && + verify_parents $c0 $c1 +' + +test_debug 'gitk --all' + +test_expect_success 'refresh the index before merging' ' + git reset --hard c1 && + sleep 1 && + touch file && + git merge c3 +' + +cat >expected <<EOF +Merge branch 'c5' (early part) +EOF + +test_expect_success 'merge early part of c2' ' + git reset --hard c3 && + 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 && + git reset --hard c3 && + echo c6 > c6.c && + git add c6.c && + git commit -m c6 && + git tag c6 && + git merge c5~1 && + git show -s --pretty=format:%s HEAD > actual && + test_cmp actual expected +' + +test_debug 'gitk --all' + +test_expect_success 'merge --no-ff --no-commit && commit' ' + git reset --hard c0 && + git merge --no-ff --no-commit c1 && + EDITOR=: git commit && + verify_parents $c0 $c1 +' + +test_debug 'gitk --all' + +test_expect_success 'amending no-ff merge commit' ' + EDITOR=: git commit --amend && + verify_parents $c0 $c1 +' + +test_debug 'gitk --all' + +test_done |