test_description='git merge
-Testing basic merge operations/option parsing.'
+Testing basic merge operations/option parsing.
+
+! [c0] commit 0
+ ! [c1] commit 1
+ ! [c2] commit 2
+ ! [c3] commit 3
+ ! [c4] c4
+ ! [c5] c5
+ ! [c6] c6
+ * [master] Merge commit 'c1'
+--------
+ - [master] Merge commit 'c1'
+ + * [c1] commit 1
+ + [c6] c6
+ + [c5] c5
+ ++ [c4] c4
+ ++++ [c3] commit 3
+ + [c2] commit 2
++++++++* [c0] commit 0
+'
. ./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)"
+test_expect_success 'set up test data and helpers' '
+ printf "%s\n" 1 2 3 4 5 6 7 8 9 >file &&
+ printf "%s\n" "1 X" 2 3 4 5 6 7 8 9 >file.1 &&
+ printf "%s\n" 1 2 3 4 "5 X" 6 7 8 9 >file.5 &&
+ printf "%s\n" 1 2 3 4 5 6 7 8 "9 X" >file.9 &&
+ printf "%s\n" "1 X" 2 3 4 5 6 7 8 9 >result.1 &&
+ printf "%s\n" "1 X" 2 3 4 "5 X" 6 7 8 9 >result.1-5 &&
+ printf "%s\n" "1 X" 2 3 4 "5 X" 6 7 8 "9 X" >result.1-5-9 &&
+
+ 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:" &&
+ echo &&
+ git log --no-merges ^HEAD c1
+ } >squash.1 &&
+ {
+ echo "Squashed commit of the following:" &&
+ echo &&
+ git log --no-merges ^HEAD c2
+ } >squash.1-5 &&
+ {
+ echo "Squashed commit of the following:" &&
+ echo &&
+ git log --no-merges ^HEAD c2 c3
+ } >squash.1-5-9 &&
+ echo >msg.nolog &&
+ {
+ echo "* commit '\''c3'\'':" &&
+ echo " commit 3" &&
+ echo
+ } >msg.log
+ } &&
+
+ verify_merge() {
+ test_cmp "$2" "$1" &&
+ git update-index --refresh &&
+ git diff --exit-code &&
+ if test -n "$3"
then
- echo "[OOPS] HEAD^$i != $1"
- return 1
+ git show -s --pretty=format:%s HEAD >msg.act &&
+ test_cmp "$3" msg.act
fi
- i=$(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"
+ } &&
+
+ verify_head() {
+ echo "$1" >head.expected &&
+ git rev-parse HEAD >head.actual &&
+ test_cmp head.expected head.actual
+ } &&
+
+ verify_parents() {
+ printf "%s\n" "$@" >parents.expected &&
+ >parents.actual &&
+ i=1 &&
+ while test $i -le $#
+ do
+ git rev-parse HEAD^$i >>parents.actual &&
+ i=$(expr $i + 1) ||
return 1
- fi
- i=$(expr $i + 1)
- shift
- done
-}
+ done &&
+ test_cmp parents.expected parents.actual
+ } &&
-verify_no_mergehead() {
- if test -f .git/MERGE_HEAD
- then
- echo "[OOPS] MERGE_HEAD exists"
- false
- fi
-}
+ verify_mergeheads() {
+ printf "%s\n" "$@" >mergehead.expected &&
+ test_cmp mergehead.expected .git/MERGE_HEAD
+ } &&
+ verify_no_mergehead() {
+ ! test -e .git/MERGE_HEAD
+ }
+'
test_expect_success 'setup' '
git add file &&
create_merge_msgs
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'test option parsing' '
test_must_fail git merge -$ c1 &&
'
test_expect_success 'merge c0 with c1' '
+ echo "OBJID HEAD@{0}: merge c1: Fast-forward" >reflog.expected &&
+
git reset --hard c0 &&
git merge c1 &&
verify_merge file result.1 &&
- verify_head "$c1"
+ verify_head "$c1" &&
+
+ git reflog -1 >reflog.actual &&
+ sed "s/$_x05[0-9a-f]*/OBJID/g" reflog.actual >reflog.fuzzy &&
+ test_cmp reflog.expected reflog.fuzzy
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 with --ff-only' '
git reset --hard c0 &&
verify_head "$c1"
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
+
+test_expect_success 'merge from unborn branch' '
+ git checkout -f master &&
+ test_might_fail git branch -D kid &&
+
+ echo "OBJID HEAD@{0}: initial pull" >reflog.expected &&
+
+ git checkout --orphan kid &&
+ test_when_finished "git checkout -f master" &&
+ git rm -fr . &&
+ test_tick &&
+ git merge --ff-only c1 &&
+ verify_merge file result.1 &&
+ verify_head "$c1" &&
+
+ git reflog -1 >reflog.actual &&
+ sed "s/$_x05[0-9a-f][0-9a-f]/OBJID/g" reflog.actual >reflog.fuzzy &&
+ test_cmp reflog.expected reflog.fuzzy
+'
+
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2' '
git reset --hard c1 &&
verify_parents $c1 $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 and c3' '
git reset --hard c1 &&
verify_parents $c1 $c2 $c3
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'failing merges with --ff-only' '
git reset --hard c1 &&
verify_head $c1
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (no-commit)' '
git reset --hard c1 &&
verify_mergeheads $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 and c3 (no-commit)' '
git reset --hard c1 &&
verify_mergeheads $c2 $c3
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 (squash)' '
git reset --hard c0 &&
verify_merge file result.1 &&
verify_head $c0 &&
verify_no_mergehead &&
- verify_diff squash.1 .git/SQUASH_MSG "[OOPS] bad squash message"
+ test_cmp squash.1 .git/SQUASH_MSG
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 (squash, ff-only)' '
git reset --hard c0 &&
verify_merge file result.1 &&
verify_head $c0 &&
verify_no_mergehead &&
- verify_diff squash.1 .git/SQUASH_MSG "[OOPS] bad squash message"
+ test_cmp squash.1 .git/SQUASH_MSG
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (squash)' '
git reset --hard c1 &&
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_cmp squash.1-5 .git/SQUASH_MSG
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --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_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 and c3 (squash)' '
git reset --hard c1 &&
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_cmp squash.1-5-9 .git/SQUASH_MSG
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (no-commit in config)' '
git reset --hard c1 &&
verify_mergeheads $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (squash in config)' '
git reset --hard c1 &&
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_cmp squash.1-5 .git/SQUASH_MSG
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'override config option -n with --summary' '
git reset --hard c1 &&
fi
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'override config option --stat' '
git reset --hard c1 &&
fi
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (override --no-commit)' '
git reset --hard c1 &&
verify_parents $c1 $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c2 (override --squash)' '
git reset --hard c1 &&
verify_parents $c1 $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c0 with c1 (no-ff)' '
git reset --hard c0 &&
verify_parents $c0 $c1
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'combining --squash and --no-ff is refused' '
test_must_fail git merge --squash --no-ff c1 &&
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" &&
+ test_cmp msg.nolog msg.act &&
git merge --log c3 &&
git show -s --pretty=format:%b HEAD >msg.act &&
- verify_diff msg.log msg.act "[OOPS] bad merge log message" &&
+ test_cmp msg.log msg.act &&
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_cmp msg.log msg.act
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c0, c2, c0, and c1' '
git reset --hard c1 &&
verify_parents $c1 $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c0, c2, c0, and c1' '
git reset --hard c1 &&
verify_parents $c1 $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge c1 with c1 and c2' '
git reset --hard c1 &&
verify_parents $c1 $c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge fast-forward in a dirty tree' '
git reset --hard c0 &&
git merge c2
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'in-index merge' '
git reset --hard c0 &&
- git merge --no-ff -s resolve c1 > out &&
+ git merge --no-ff -s resolve c1 >out &&
grep "Wonderful." out &&
verify_parents $c0 $c1
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'refresh the index before merging' '
git reset --hard c1 &&
git merge c3
'
-cat >expected <<EOF
-Merge branch 'c5' (early part)
+cat >expected.branch <<\EOF
+Merge branch 'c5-branch' (early part)
+EOF
+cat >expected.tag <<\EOF
+Merge commit 'c5~1'
EOF
test_expect_success 'merge early part of c2' '
git reset --hard c3 &&
- echo c4 > c4.c &&
+ echo c4 >c4.c &&
git add c4.c &&
git commit -m c4 &&
git tag c4 &&
- echo c5 > c5.c &&
+ echo c5 >c5.c &&
git add c5.c &&
git commit -m c5 &&
git tag c5 &&
git reset --hard c3 &&
- echo c6 > c6.c &&
+ echo c6 >c6.c &&
git add c6.c &&
git commit -m c6 &&
git tag c6 &&
+ git branch -f c5-branch c5 &&
+ git merge c5-branch~1 &&
+ git show -s --pretty=format:%s HEAD >actual.branch &&
+ git reset --keep HEAD^ &&
git merge c5~1 &&
- git show -s --pretty=format:%s HEAD > actual &&
- test_cmp actual expected
+ git show -s --pretty=format:%s HEAD >actual.tag &&
+ test_cmp expected.branch actual.branch &&
+ test_cmp expected.tag actual.tag
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'merge --no-ff --no-commit && commit' '
git reset --hard c0 &&
verify_parents $c0 $c1
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_expect_success 'amending no-ff merge commit' '
EDITOR=: git commit --amend &&
verify_parents $c0 $c1
'
-test_debug 'gitk --all'
+test_debug 'git log --graph --decorate --oneline --all'
test_done