test_cmp_rev HEAD $head
'
+test_expect_success 'A root commit can be a cousin, treat it that way' '
+ git checkout --orphan khnum &&
+ test_commit yama &&
+ git checkout -b asherah master &&
+ test_commit shamkat &&
+ git merge --allow-unrelated-histories khnum &&
+ test_tick &&
+ git rebase -f -r HEAD^ &&
+ ! test_cmp_rev HEAD^2 khnum &&
+ test_cmp_graph HEAD^.. <<-\EOF &&
+ * Merge branch '\''khnum'\'' into asherah
+ |\
+ | * yama
+ o shamkat
+ EOF
+ test_tick &&
+ git rebase --rebase-merges=rebase-cousins HEAD^ &&
+ test_cmp_graph HEAD^.. <<-\EOF
+ * Merge branch '\''khnum'\'' into asherah
+ |\
+ | * yama
+ |/
+ o shamkat
+ EOF
+'
+
+test_expect_success 'labels that are object IDs are rewritten' '
+ git checkout -b third B &&
+ test_commit I &&
+ third=$(git rev-parse HEAD) &&
+ git checkout -b labels master &&
+ git merge --no-commit third &&
+ test_tick &&
+ git commit -m "Merge commit '\''$third'\'' into labels" &&
+ echo noop >script-from-scratch &&
+ test_config sequence.editor \""$PWD"/replace-editor.sh\" &&
+ test_tick &&
+ git rebase -i -r A &&
+ grep "^label $third-" .git/ORIGINAL-TODO &&
+ ! grep "^label $third$" .git/ORIGINAL-TODO
+'
+
+test_expect_success 'octopus merges' '
+ git checkout -b three &&
+ test_commit before-octopus &&
+ test_commit three &&
+ git checkout -b two HEAD^ &&
+ test_commit two &&
+ git checkout -b one HEAD^ &&
+ test_commit one &&
+ test_tick &&
+ (GIT_AUTHOR_NAME="Hank" GIT_AUTHOR_EMAIL="hank@sea.world" \
+ git merge -m "Tüntenfüsch" two three) &&
+
+ : fast forward if possible &&
+ before="$(git rev-parse --verify HEAD)" &&
+ test_tick &&
+ git rebase -i -r HEAD^^ &&
+ test_cmp_rev HEAD $before &&
+
+ test_tick &&
+ git rebase -i --force -r HEAD^^ &&
+ test "Hank" = "$(git show -s --format=%an HEAD)" &&
+ test "$before" != $(git rev-parse HEAD) &&
+ test_cmp_graph HEAD^^.. <<-\EOF
+ *-. Tüntenfüsch
+ |\ \
+ | | * three
+ | * | two
+ | |/
+ * | one
+ |/
+ o before-octopus
+ EOF
+'
test_done