test_expect_success '-p handles "no changes" gracefully' '
HEAD=$(git rev-parse HEAD) &&
git rebase -i -p HEAD^ &&
+ git update-index --refresh &&
+ git diff-files --quiet &&
+ git diff-index --quiet --cached HEAD -- &&
test $HEAD = $(git rev-parse HEAD)
'
git checkout -b to-be-rebased &&
test_tick &&
git rebase -i -p --onto branch1 master &&
+ git update-index --refresh &&
+ git diff-files --quiet &&
+ git diff-index --quiet --cached HEAD -- &&
test $(git rev-parse HEAD~6) = $(git rev-parse branch1) &&
test $(git rev-parse HEAD~4^2) = $(git rev-parse to-be-preserved) &&
test $(git rev-parse HEAD^^2^) = $(git rev-parse HEAD^^^) &&
test $(git show HEAD:unrelated-file) = 1
'
+test_expect_success 'edit ancestor with -p' '
+ FAKE_LINES="1 edit 2 3 4" git rebase -i -p HEAD~3 &&
+ echo 2 > unrelated-file &&
+ test_tick &&
+ git commit -m L2-modified --amend unrelated-file &&
+ git rebase --continue &&
+ git update-index --refresh &&
+ git diff-files --quiet &&
+ git diff-index --quiet --cached HEAD -- &&
+ test $(git show HEAD:unrelated-file) = 2
+'
+
test_expect_success '--continue tries to commit' '
test_tick &&
test_must_fail git rebase -i --onto new-branch1 HEAD^ &&