Adding upstream version 1:2.30.2.upstream/1%2.30.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1817 insertions, 0 deletions

diff --git a/t/t3404-rebase-interactive.sh b/t/t3404-rebase-interactive.sh
new file mode 100755
index 0000000..b06fc36
--- /dev/null
+++ b/t/t3404-rebase-interactive.sh
@@ -0,0 +1,1817 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Johannes E. Schindelin
+#
+
+test_description='git rebase interactive
+
+This test runs git rebase "interactively", by faking an edit, and verifies
+that the result still makes sense.
+
+Initial setup:
+
+     one - two - three - four (conflict-branch)
+   /
+ A - B - C - D - E            (primary)
+ | \
+ |   F - G - H                (branch1)
+ |     \
+ |\      I                    (branch2)
+ | \
+ |   J - K - L - M            (no-conflict-branch)
+  \
+    N - O - P                 (no-ff-branch)
+
+ where A, B, D and G all touch file1, and one, two, three, four all
+ touch file "conflict".
+'
+. ./test-lib.sh
+
+. "$TEST_DIRECTORY"/lib-rebase.sh
+
+test_expect_success 'setup' '
+	git switch -C primary &&
+	test_commit A file1 &&
+	test_commit B file1 &&
+	test_commit C file2 &&
+	test_commit D file1 &&
+	test_commit E file3 &&
+	git checkout -b branch1 A &&
+	test_commit F file4 &&
+	test_commit G file1 &&
+	test_commit H file5 &&
+	git checkout -b branch2 F &&
+	test_commit I file6 &&
+	git checkout -b conflict-branch A &&
+	test_commit one conflict &&
+	test_commit two conflict &&
+	test_commit three conflict &&
+	test_commit four conflict &&
+	git checkout -b no-conflict-branch A &&
+	test_commit J fileJ &&
+	test_commit K fileK &&
+	test_commit L fileL &&
+	test_commit M fileM &&
+	git checkout -b no-ff-branch A &&
+	test_commit N fileN &&
+	test_commit O fileO &&
+	test_commit P fileP
+'
+
+# "exec" commands are run with the user shell by default, but this may
+# be non-POSIX. For example, if SHELL=zsh then ">file" doesn't work
+# to create a file. Unsetting SHELL avoids such non-portable behavior
+# in tests. It must be exported for it to take effect where needed.
+SHELL=
+export SHELL
+
+test_expect_success 'rebase --keep-empty' '
+	git checkout -b emptybranch primary &&
+	git commit --allow-empty -m "empty" &&
+	git rebase --keep-empty -i HEAD~2 &&
+	git log --oneline >actual &&
+	test_line_count = 6 actual
+'
+
+test_expect_success 'rebase -i with empty todo list' '
+	cat >expect <<-\EOF &&
+	error: nothing to do
+	EOF
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="#" \
+			git rebase -i HEAD^ >output 2>&1
+	) &&
+	tail -n 1 output >actual &&  # Ignore output about changing todo list
+	test_i18ncmp expect actual
+'
+
+test_expect_success 'rebase -i with the exec command' '
+	git checkout primary &&
+	(
+	set_fake_editor &&
+	FAKE_LINES="1 exec_>touch-one
+		2 exec_>touch-two exec_false exec_>touch-three
+		3 4 exec_>\"touch-file__name_with_spaces\";_>touch-after-semicolon 5" &&
+	export FAKE_LINES &&
+	test_must_fail git rebase -i A
+	) &&
+	test_path_is_file touch-one &&
+	test_path_is_file touch-two &&
+	test_path_is_missing touch-three " (should have stopped before)" &&
+	test_cmp_rev C HEAD &&
+	git rebase --continue &&
+	test_path_is_file touch-three &&
+	test_path_is_file "touch-file  name with spaces" &&
+	test_path_is_file touch-after-semicolon &&
+	test_cmp_rev primary HEAD &&
+	rm -f touch-*
+'
+
+test_expect_success 'rebase -i with the exec command runs from tree root' '
+	git checkout primary &&
+	mkdir subdir && (cd subdir &&
+	set_fake_editor &&
+	FAKE_LINES="1 exec_>touch-subdir" \
+		git rebase -i HEAD^
+	) &&
+	test_path_is_file touch-subdir &&
+	rm -fr subdir
+'
+
+test_expect_success 'rebase -i with exec allows git commands in subdirs' '
+	test_when_finished "rm -rf subdir" &&
+	test_when_finished "git rebase --abort ||:" &&
+	git checkout primary &&
+	mkdir subdir && (cd subdir &&
+	set_fake_editor &&
+	FAKE_LINES="1 x_cd_subdir_&&_git_rev-parse_--is-inside-work-tree" \
+		git rebase -i HEAD^
+	)
+'
+
+test_expect_success 'rebase -i sets work tree properly' '
+	test_when_finished "rm -rf subdir" &&
+	test_when_finished "test_might_fail git rebase --abort" &&
+	mkdir subdir &&
+	git rebase -x "(cd subdir && git rev-parse --show-toplevel)" HEAD^ \
+		>actual &&
+	! grep "/subdir$" actual
+'
+
+test_expect_success 'rebase -i with the exec command checks tree cleanness' '
+	git checkout primary &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="exec_echo_foo_>file1 1" \
+			git rebase -i HEAD^
+	) &&
+	test_cmp_rev primary^ HEAD &&
+	git reset --hard &&
+	git rebase --continue
+'
+
+test_expect_success 'rebase -x with empty command fails' '
+	test_when_finished "git rebase --abort ||:" &&
+	test_must_fail env git rebase -x "" @ 2>actual &&
+	test_write_lines "error: empty exec command" >expected &&
+	test_i18ncmp expected actual &&
+	test_must_fail env git rebase -x " " @ 2>actual &&
+	test_i18ncmp expected actual
+'
+
+test_expect_success 'rebase -x with newline in command fails' '
+	test_when_finished "git rebase --abort ||:" &&
+	test_must_fail env git rebase -x "a${LF}b" @ 2>actual &&
+	test_write_lines "error: exec commands cannot contain newlines" \
+			 >expected &&
+	test_i18ncmp expected actual
+'
+
+test_expect_success 'rebase -i with exec of inexistent command' '
+	git checkout primary &&
+	test_when_finished "git rebase --abort" &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="exec_this-command-does-not-exist 1" \
+			git rebase -i HEAD^ >actual 2>&1
+	) &&
+	! grep "Maybe git-rebase is broken" actual
+'
+
+test_expect_success 'implicit interactive rebase does not invoke sequence editor' '
+	test_when_finished "git rebase --abort ||:" &&
+	GIT_SEQUENCE_EDITOR="echo bad >" git rebase -x"echo one" @^
+'
+
+test_expect_success 'no changes are a nop' '
+	git checkout branch2 &&
+	git rebase -i F &&
+	test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch2" &&
+	test_cmp_rev I HEAD
+'
+
+test_expect_success 'test the [branch] option' '
+	git checkout -b dead-end &&
+	git rm file6 &&
+	git commit -m "stop here" &&
+	git rebase -i F branch2 &&
+	test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch2" &&
+	test_cmp_rev I branch2 &&
+	test_cmp_rev I HEAD
+'
+
+test_expect_success 'test --onto <branch>' '
+	git checkout -b test-onto branch2 &&
+	git rebase -i --onto branch1 F &&
+	test "$(git symbolic-ref -q HEAD)" = "refs/heads/test-onto" &&
+	test_cmp_rev HEAD^ branch1 &&
+	test_cmp_rev I branch2
+'
+
+test_expect_success 'rebase on top of a non-conflicting commit' '
+	git checkout branch1 &&
+	git tag original-branch1 &&
+	git rebase -i branch2 &&
+	test file6 = $(git diff --name-only original-branch1) &&
+	test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch1" &&
+	test_cmp_rev I branch2 &&
+	test_cmp_rev I HEAD~2
+'
+
+test_expect_success 'reflog for the branch shows state before rebase' '
+	test_cmp_rev branch1@{1} original-branch1
+'
+
+test_expect_success 'reflog for the branch shows correct finish message' '
+	printf "rebase (finish): refs/heads/branch1 onto %s\n" \
+		"$(git rev-parse branch2)" >expected &&
+	git log -g --pretty=%gs -1 refs/heads/branch1 >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'exchange two commits' '
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i HEAD~2
+	) &&
+	test H = $(git cat-file commit HEAD^ | sed -ne \$p) &&
+	test G = $(git cat-file commit HEAD | sed -ne \$p) &&
+	blob1=$(git rev-parse --short HEAD^:file1) &&
+	blob2=$(git rev-parse --short HEAD:file1) &&
+	commit=$(git rev-parse --short HEAD)
+'
+
+test_expect_success 'stop on conflicting pick' '
+	cat >expect <<-EOF &&
+	diff --git a/file1 b/file1
+	index $blob1..$blob2 100644
+	--- a/file1
+	+++ b/file1
+	@@ -1 +1 @@
+	-A
+	+G
+	EOF
+	cat >expect2 <<-EOF &&
+	<<<<<<< HEAD
+	D
+	=======
+	G
+	>>>>>>> $commit (G)
+	EOF
+	git tag new-branch1 &&
+	test_must_fail git rebase -i primary &&
+	test "$(git rev-parse HEAD~3)" = "$(git rev-parse primary)" &&
+	test_cmp expect .git/rebase-merge/patch &&
+	test_cmp expect2 file1 &&
+	test "$(git diff --name-status |
+		sed -n -e "/^U/s/^U[^a-z]*//p")" = file1 &&
+	test 4 = $(grep -v "^#" < .git/rebase-merge/done | wc -l) &&
+	test 0 = $(grep -c "^[^#]" < .git/rebase-merge/git-rebase-todo)
+'
+
+test_expect_success 'show conflicted patch' '
+	GIT_TRACE=1 git rebase --show-current-patch >/dev/null 2>stderr &&
+	grep "show.*REBASE_HEAD" stderr &&
+	# the original stopped-sha1 is abbreviated
+	stopped_sha1="$(git rev-parse $(cat ".git/rebase-merge/stopped-sha"))" &&
+	test "$(git rev-parse REBASE_HEAD)" = "$stopped_sha1"
+'
+
+test_expect_success 'abort' '
+	git rebase --abort &&
+	test_cmp_rev new-branch1 HEAD &&
+	test "$(git symbolic-ref -q HEAD)" = "refs/heads/branch1" &&
+	test_path_is_missing .git/rebase-merge
+'
+
+test_expect_success 'abort with error when new base cannot be checked out' '
+	git rm --cached file1 &&
+	git commit -m "remove file in base" &&
+	test_must_fail git rebase -i primary > output 2>&1 &&
+	test_i18ngrep "The following untracked working tree files would be overwritten by checkout:" \
+		output &&
+	test_i18ngrep "file1" output &&
+	test_path_is_missing .git/rebase-merge &&
+	git reset --hard HEAD^
+'
+
+test_expect_success 'retain authorship' '
+	echo A > file7 &&
+	git add file7 &&
+	test_tick &&
+	GIT_AUTHOR_NAME="Twerp Snog" git commit -m "different author" &&
+	git tag twerp &&
+	git rebase -i --onto primary HEAD^ &&
+	git show HEAD | grep "^Author: Twerp Snog"
+'
+
+test_expect_success 'retain authorship w/ conflicts' '
+	oGIT_AUTHOR_NAME=$GIT_AUTHOR_NAME &&
+	test_when_finished "GIT_AUTHOR_NAME=\$oGIT_AUTHOR_NAME" &&
+
+	git reset --hard twerp &&
+	test_commit a conflict a conflict-a &&
+	git reset --hard twerp &&
+
+	GIT_AUTHOR_NAME=AttributeMe &&
+	export GIT_AUTHOR_NAME &&
+	test_commit b conflict b conflict-b &&
+	GIT_AUTHOR_NAME=$oGIT_AUTHOR_NAME &&
+
+	test_must_fail git rebase -i conflict-a &&
+	echo resolved >conflict &&
+	git add conflict &&
+	git rebase --continue &&
+	test_cmp_rev conflict-a^0 HEAD^ &&
+	git show >out &&
+	grep AttributeMe out
+'
+
+test_expect_success 'squash' '
+	git reset --hard twerp &&
+	echo B > file7 &&
+	test_tick &&
+	GIT_AUTHOR_NAME="Nitfol" git commit -m "nitfol" file7 &&
+	echo "******************************" &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 squash 2" EXPECT_HEADER_COUNT=2 \
+			git rebase -i --onto primary HEAD~2
+	) &&
+	test B = $(cat file7) &&
+	test_cmp_rev HEAD^ primary
+'
+
+test_expect_success 'retain authorship when squashing' '
+	git show HEAD | grep "^Author: Twerp Snog"
+'
+
+test_expect_success REBASE_P '-p handles "no changes" gracefully' '
+	HEAD=$(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)
+'
+
+test_expect_failure REBASE_P 'exchange two commits with -p' '
+	git checkout H &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i -p HEAD~2
+	) &&
+	test H = $(git cat-file commit HEAD^ | sed -ne \$p) &&
+	test G = $(git cat-file commit HEAD | sed -ne \$p)
+'
+
+test_expect_success REBASE_P 'preserve merges with -p' '
+	git checkout -b to-be-preserved primary^ &&
+	: > unrelated-file &&
+	git add unrelated-file &&
+	test_tick &&
+	git commit -m "unrelated" &&
+	git checkout -b another-branch primary &&
+	echo B > file1 &&
+	test_tick &&
+	git commit -m J file1 &&
+	test_tick &&
+	git merge to-be-preserved &&
+	echo C > file1 &&
+	test_tick &&
+	git commit -m K file1 &&
+	echo D > file1 &&
+	test_tick &&
+	git commit -m L1 file1 &&
+	git checkout HEAD^ &&
+	echo 1 > unrelated-file &&
+	test_tick &&
+	git commit -m L2 unrelated-file &&
+	test_tick &&
+	git merge another-branch &&
+	echo E > file1 &&
+	test_tick &&
+	git commit -m M file1 &&
+	git checkout -b to-be-rebased &&
+	test_tick &&
+	git rebase -i -p --onto branch1 primary &&
+	git update-index --refresh &&
+	git diff-files --quiet &&
+	git diff-index --quiet --cached HEAD -- &&
+	test_cmp_rev HEAD~6 branch1 &&
+	test_cmp_rev HEAD~4^2 to-be-preserved &&
+	test_cmp_rev HEAD^^2^ HEAD^^^ &&
+	test $(git show HEAD~5:file1) = B &&
+	test $(git show HEAD~3:file1) = C &&
+	test $(git show HEAD:file1) = E &&
+	test $(git show HEAD:unrelated-file) = 1
+'
+
+test_expect_success REBASE_P 'edit ancestor with -p' '
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 edit 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 $(git show HEAD:unrelated-file) = 2
+'
+
+test_expect_success '--continue tries to commit' '
+	git reset --hard D &&
+	test_tick &&
+	(
+		set_fake_editor &&
+		test_must_fail git rebase -i --onto new-branch1 HEAD^ &&
+		echo resolved > file1 &&
+		git add file1 &&
+		FAKE_COMMIT_MESSAGE="chouette!" git rebase --continue
+	) &&
+	test_cmp_rev HEAD^ new-branch1 &&
+	git show HEAD | grep chouette
+'
+
+test_expect_success 'verbose flag is heeded, even after --continue' '
+	git reset --hard primary@{1} &&
+	test_tick &&
+	test_must_fail git rebase -v -i --onto new-branch1 HEAD^ &&
+	echo resolved > file1 &&
+	git add file1 &&
+	git rebase --continue > output &&
+	grep "^ file1 | 2 +-$" output
+'
+
+test_expect_success C_LOCALE_OUTPUT 'multi-squash only fires up editor once' '
+	base=$(git rev-parse HEAD~4) &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="1 squash 2 squash 3 squash 4" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
+	test $base = $(git rev-parse HEAD^) &&
+	test 1 = $(git show | grep ONCE | wc -l)
+'
+
+test_expect_success C_LOCALE_OUTPUT 'multi-fixup does not fire up editor' '
+	git checkout -b multi-fixup E &&
+	base=$(git rev-parse HEAD~4) &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="NEVER" \
+			FAKE_LINES="1 fixup 2 fixup 3 fixup 4" \
+			git rebase -i $base
+	) &&
+	test $base = $(git rev-parse HEAD^) &&
+	test 0 = $(git show | grep NEVER | wc -l) &&
+	git checkout @{-1} &&
+	git branch -D multi-fixup
+'
+
+test_expect_success 'commit message used after conflict' '
+	git checkout -b conflict-fixup conflict-branch &&
+	base=$(git rev-parse HEAD~4) &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 fixup 3 fixup 4" \
+			git rebase -i $base &&
+		echo three > conflict &&
+		git add conflict &&
+		FAKE_COMMIT_AMEND="ONCE" EXPECT_HEADER_COUNT=2 \
+			git rebase --continue
+	) &&
+	test $base = $(git rev-parse HEAD^) &&
+	test 1 = $(git show | grep ONCE | wc -l) &&
+	git checkout @{-1} &&
+	git branch -D conflict-fixup
+'
+
+test_expect_success 'commit message retained after conflict' '
+	git checkout -b conflict-squash conflict-branch &&
+	base=$(git rev-parse HEAD~4) &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 fixup 3 squash 4" \
+			git rebase -i $base &&
+		echo three > conflict &&
+		git add conflict &&
+		FAKE_COMMIT_AMEND="TWICE" EXPECT_HEADER_COUNT=2 \
+			git rebase --continue
+	) &&
+	test $base = $(git rev-parse HEAD^) &&
+	test 2 = $(git show | grep TWICE | wc -l) &&
+	git checkout @{-1} &&
+	git branch -D conflict-squash
+'
+
+test_expect_success C_LOCALE_OUTPUT 'squash and fixup generate correct log messages' '
+	cat >expect-squash-fixup <<-\EOF &&
+	B
+
+	D
+
+	ONCE
+	EOF
+	git checkout -b squash-fixup E &&
+	base=$(git rev-parse HEAD~4) &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="1 fixup 2 squash 3 fixup 4" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
+	git cat-file commit HEAD | sed -e 1,/^\$/d > actual-squash-fixup &&
+	test_cmp expect-squash-fixup actual-squash-fixup &&
+	git cat-file commit HEAD@{2} |
+		grep "^# This is a combination of 3 commits\."  &&
+	git cat-file commit HEAD@{3} |
+		grep "^# This is a combination of 2 commits\."  &&
+	git checkout @{-1} &&
+	git branch -D squash-fixup
+'
+
+test_expect_success C_LOCALE_OUTPUT 'squash ignores comments' '
+	git checkout -b skip-comments E &&
+	base=$(git rev-parse HEAD~4) &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="# 1 # squash 2 # squash 3 # squash 4 #" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
+	test $base = $(git rev-parse HEAD^) &&
+	test 1 = $(git show | grep ONCE | wc -l) &&
+	git checkout @{-1} &&
+	git branch -D skip-comments
+'
+
+test_expect_success C_LOCALE_OUTPUT 'squash ignores blank lines' '
+	git checkout -b skip-blank-lines E &&
+	base=$(git rev-parse HEAD~4) &&
+	(
+		set_fake_editor &&
+		FAKE_COMMIT_AMEND="ONCE" \
+			FAKE_LINES="> 1 > squash 2 > squash 3 > squash 4 >" \
+			EXPECT_HEADER_COUNT=4 \
+			git rebase -i $base
+	) &&
+	test $base = $(git rev-parse HEAD^) &&
+	test 1 = $(git show | grep ONCE | wc -l) &&
+	git checkout @{-1} &&
+	git branch -D skip-blank-lines
+'
+
+test_expect_success 'squash works as expected' '
+	git checkout -b squash-works no-conflict-branch &&
+	one=$(git rev-parse HEAD~3) &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 s 3 2" EXPECT_HEADER_COUNT=2 git rebase -i HEAD~3
+	) &&
+	test $one = $(git rev-parse HEAD~2)
+'
+
+test_expect_success 'interrupted squash works as expected' '
+	git checkout -b interrupted-squash conflict-branch &&
+	one=$(git rev-parse HEAD~3) &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 squash 3 2" \
+			git rebase -i HEAD~3
+	) &&
+	test_write_lines one two four > conflict &&
+	git add conflict &&
+	test_must_fail git rebase --continue &&
+	echo resolved > conflict &&
+	git add conflict &&
+	git rebase --continue &&
+	test $one = $(git rev-parse HEAD~2)
+'
+
+test_expect_success 'interrupted squash works as expected (case 2)' '
+	git checkout -b interrupted-squash2 conflict-branch &&
+	one=$(git rev-parse HEAD~3) &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="3 squash 1 2" \
+			git rebase -i HEAD~3
+	) &&
+	test_write_lines one four > conflict &&
+	git add conflict &&
+	test_must_fail git rebase --continue &&
+	test_write_lines one two four > conflict &&
+	git add conflict &&
+	test_must_fail git rebase --continue &&
+	echo resolved > conflict &&
+	git add conflict &&
+	git rebase --continue &&
+	test $one = $(git rev-parse HEAD~2)
+'
+
+test_expect_success '--continue tries to commit, even for "edit"' '
+	echo unrelated > file7 &&
+	git add file7 &&
+	test_tick &&
+	git commit -m "unrelated change" &&
+	parent=$(git rev-parse HEAD^) &&
+	test_tick &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i HEAD^ &&
+		echo edited > file7 &&
+		git add file7 &&
+		FAKE_COMMIT_MESSAGE="chouette!" git rebase --continue
+	) &&
+	test edited = $(git show HEAD:file7) &&
+	git show HEAD | grep chouette &&
+	test $parent = $(git rev-parse HEAD^)
+'
+
+test_expect_success 'aborted --continue does not squash commits after "edit"' '
+	old=$(git rev-parse HEAD) &&
+	test_tick &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i HEAD^ &&
+		echo "edited again" > file7 &&
+		git add file7 &&
+		test_must_fail env FAKE_COMMIT_MESSAGE=" " git rebase --continue
+	) &&
+	test $old = $(git rev-parse HEAD) &&
+	git rebase --abort
+'
+
+test_expect_success 'auto-amend only edited commits after "edit"' '
+	test_tick &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i HEAD^ &&
+		echo "edited again" > file7 &&
+		git add file7 &&
+		FAKE_COMMIT_MESSAGE="edited file7 again" git commit &&
+		echo "and again" > file7 &&
+		git add file7 &&
+		test_tick &&
+		test_must_fail env FAKE_COMMIT_MESSAGE="and again" \
+			git rebase --continue
+	) &&
+	git rebase --abort
+'
+
+test_expect_success 'clean error after failed "exec"' '
+	test_tick &&
+	test_when_finished "git rebase --abort || :" &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 exec_false" git rebase -i HEAD^
+	) &&
+	echo "edited again" > file7 &&
+	git add file7 &&
+	test_must_fail git rebase --continue 2>error &&
+	test_i18ngrep "you have staged changes in your working tree" error
+'
+
+test_expect_success 'rebase a detached HEAD' '
+	grandparent=$(git rev-parse HEAD~2) &&
+	git checkout $(git rev-parse HEAD) &&
+	test_tick &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i HEAD~2
+	) &&
+	test $grandparent = $(git rev-parse HEAD~2)
+'
+
+test_expect_success 'rebase a commit violating pre-commit' '
+
+	mkdir -p .git/hooks &&
+	write_script .git/hooks/pre-commit <<-\EOF &&
+	test -z "$(git diff --cached --check)"
+	EOF
+	echo "monde! " >> file1 &&
+	test_tick &&
+	test_must_fail git commit -m doesnt-verify file1 &&
+	git commit -m doesnt-verify --no-verify file1 &&
+	test_tick &&
+	(
+		set_fake_editor &&
+		FAKE_LINES=2 git rebase -i HEAD~2
+	)
+'
+
+test_expect_success 'rebase with a file named HEAD in worktree' '
+
+	rm -fr .git/hooks &&
+	git reset --hard &&
+	git checkout -b branch3 A &&
+
+	(
+		GIT_AUTHOR_NAME="Squashed Away" &&
+		export GIT_AUTHOR_NAME &&
+		>HEAD &&
+		git add HEAD &&
+		git commit -m "Add head" &&
+		>BODY &&
+		git add BODY &&
+		git commit -m "Add body"
+	) &&
+
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 squash 2" git rebase -i @{-1}
+	) &&
+	test "$(git show -s --pretty=format:%an)" = "Squashed Away"
+
+'
+
+test_expect_success 'do "noop" when there is nothing to cherry-pick' '
+
+	git checkout -b branch4 HEAD &&
+	GIT_EDITOR=: git commit --amend \
+		--author="Somebody else <somebody@else.com>" &&
+	test $(git rev-parse branch3) != $(git rev-parse branch4) &&
+	git rebase -i branch3 &&
+	test_cmp_rev branch3 branch4
+
+'
+
+test_expect_success 'submodule rebase setup' '
+	git checkout A &&
+	mkdir sub &&
+	(
+		cd sub && git init && >elif &&
+		git add elif && git commit -m "submodule initial"
+	) &&
+	echo 1 >file1 &&
+	git add file1 sub &&
+	test_tick &&
+	git commit -m "One" &&
+	echo 2 >file1 &&
+	test_tick &&
+	git commit -a -m "Two" &&
+	(
+		cd sub && echo 3 >elif &&
+		git commit -a -m "submodule second"
+	) &&
+	test_tick &&
+	git commit -a -m "Three changes submodule"
+'
+
+test_expect_success 'submodule rebase -i' '
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 squash 2 3" git rebase -i A
+	)
+'
+
+test_expect_success 'submodule conflict setup' '
+	git tag submodule-base &&
+	git checkout HEAD^ &&
+	(
+		cd sub && git checkout HEAD^ && echo 4 >elif &&
+		git add elif && git commit -m "submodule conflict"
+	) &&
+	git add sub &&
+	test_tick &&
+	git commit -m "Conflict in submodule" &&
+	git tag submodule-topic
+'
+
+test_expect_success 'rebase -i continue with only submodule staged' '
+	test_must_fail git rebase -i submodule-base &&
+	git add sub &&
+	git rebase --continue &&
+	test $(git rev-parse submodule-base) != $(git rev-parse HEAD)
+'
+
+test_expect_success 'rebase -i continue with unstaged submodule' '
+	git checkout submodule-topic &&
+	git reset --hard &&
+	test_must_fail git rebase -i submodule-base &&
+	git reset &&
+	git rebase --continue &&
+	test_cmp_rev submodule-base HEAD
+'
+
+test_expect_success 'avoid unnecessary reset' '
+	git checkout primary &&
+	git reset --hard &&
+	test-tool chmtime =123456789 file3 &&
+	git update-index --refresh &&
+	HEAD=$(git rev-parse HEAD) &&
+	git rebase -i HEAD~4 &&
+	test $HEAD = $(git rev-parse HEAD) &&
+	MTIME=$(test-tool chmtime --get file3) &&
+	test 123456789 = $MTIME
+'
+
+test_expect_success 'reword' '
+	git checkout -b reword-branch primary &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 reword 4" FAKE_COMMIT_MESSAGE="E changed" \
+			git rebase -i A &&
+		git show HEAD | grep "E changed" &&
+		test $(git rev-parse primary) != $(git rev-parse HEAD) &&
+		test_cmp_rev primary^ HEAD^ &&
+		FAKE_LINES="1 2 reword 3 4" FAKE_COMMIT_MESSAGE="D changed" \
+			git rebase -i A &&
+		git show HEAD^ | grep "D changed" &&
+		FAKE_LINES="reword 1 2 3 4" FAKE_COMMIT_MESSAGE="B changed" \
+			git rebase -i A &&
+		git show HEAD~3 | grep "B changed" &&
+		FAKE_LINES="1 r 2 pick 3 p 4" FAKE_COMMIT_MESSAGE="C changed" \
+			git rebase -i A
+	) &&
+	git show HEAD~2 | grep "C changed"
+'
+
+test_expect_success 'rebase -i can copy notes' '
+	git config notes.rewrite.rebase true &&
+	git config notes.rewriteRef "refs/notes/*" &&
+	test_commit n1 &&
+	test_commit n2 &&
+	test_commit n3 &&
+	git notes add -m"a note" n3 &&
+	git rebase -i --onto n1 n2 &&
+	test "a note" = "$(git notes show HEAD)"
+'
+
+test_expect_success 'rebase -i can copy notes over a fixup' '
+	cat >expect <<-\EOF &&
+	an earlier note
+
+	a note
+	EOF
+	git reset --hard n3 &&
+	git notes add -m"an earlier note" n2 &&
+	(
+		set_fake_editor &&
+		GIT_NOTES_REWRITE_MODE=concatenate FAKE_LINES="1 f 2" \
+			git rebase -i n1
+	) &&
+	git notes show > output &&
+	test_cmp expect output
+'
+
+test_expect_success 'rebase while detaching HEAD' '
+	git symbolic-ref HEAD &&
+	grandparent=$(git rev-parse HEAD~2) &&
+	test_tick &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1" git rebase -i HEAD~2 HEAD^0
+	) &&
+	test $grandparent = $(git rev-parse HEAD~2) &&
+	test_must_fail git symbolic-ref HEAD
+'
+
+test_tick # Ensure that the rebased commits get a different timestamp.
+test_expect_success 'always cherry-pick with --no-ff' '
+	git checkout no-ff-branch &&
+	git tag original-no-ff-branch &&
+	git rebase -i --no-ff A &&
+	for p in 0 1 2
+	do
+		test ! $(git rev-parse HEAD~$p) = $(git rev-parse original-no-ff-branch~$p) &&
+		git diff HEAD~$p original-no-ff-branch~$p > out &&
+		test_must_be_empty out
+	done &&
+	test_cmp_rev HEAD~3 original-no-ff-branch~3 &&
+	git diff HEAD~3 original-no-ff-branch~3 > out &&
+	test_must_be_empty out
+'
+
+test_expect_success 'set up commits with funny messages' '
+	git checkout -b funny A &&
+	echo >>file1 &&
+	test_tick &&
+	git commit -a -m "end with slash\\" &&
+	echo >>file1 &&
+	test_tick &&
+	git commit -a -m "something (\000) that looks like octal" &&
+	echo >>file1 &&
+	test_tick &&
+	git commit -a -m "something (\n) that looks like a newline" &&
+	echo >>file1 &&
+	test_tick &&
+	git commit -a -m "another commit"
+'
+
+test_expect_success 'rebase-i history with funny messages' '
+	git rev-list A..funny >expect &&
+	test_tick &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 4" git rebase -i A
+	) &&
+	git rev-list A.. >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'prepare for rebase -i --exec' '
+	git checkout primary &&
+	git checkout -b execute &&
+	test_commit one_exec main.txt one_exec &&
+	test_commit two_exec main.txt two_exec &&
+	test_commit three_exec main.txt three_exec
+'
+
+test_expect_success 'running "git rebase -i --exec git show HEAD"' '
+	(
+		set_fake_editor &&
+		git rebase -i --exec "git show HEAD" HEAD~2 >actual &&
+		FAKE_LINES="1 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
+		export FAKE_LINES &&
+		git rebase -i HEAD~2 >expect
+	) &&
+	sed -e "1,9d" expect >expected &&
+	test_cmp expected actual
+'
+
+test_expect_success 'running "git rebase --exec git show HEAD -i"' '
+	git reset --hard execute &&
+	(
+		set_fake_editor &&
+		git rebase --exec "git show HEAD" -i HEAD~2 >actual &&
+		FAKE_LINES="1 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
+		export FAKE_LINES &&
+		git rebase -i HEAD~2 >expect
+	) &&
+	sed -e "1,9d" expect >expected &&
+	test_cmp expected actual
+'
+
+test_expect_success 'running "git rebase -ix git show HEAD"' '
+	git reset --hard execute &&
+	(
+		set_fake_editor &&
+		git rebase -ix "git show HEAD" HEAD~2 >actual &&
+		FAKE_LINES="1 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
+		export FAKE_LINES &&
+		git rebase -i HEAD~2 >expect
+	) &&
+	sed -e "1,9d" expect >expected &&
+	test_cmp expected actual
+'
+
+
+test_expect_success 'rebase -ix with several <CMD>' '
+	git reset --hard execute &&
+	(
+		set_fake_editor &&
+		git rebase -ix "git show HEAD; pwd" HEAD~2 >actual &&
+		FAKE_LINES="1 exec_git_show_HEAD;_pwd 2 exec_git_show_HEAD;_pwd" &&
+		export FAKE_LINES &&
+		git rebase -i HEAD~2 >expect
+	) &&
+	sed -e "1,9d" expect >expected &&
+	test_cmp expected actual
+'
+
+test_expect_success 'rebase -ix with several instances of --exec' '
+	git reset --hard execute &&
+	(
+		set_fake_editor &&
+		git rebase -i --exec "git show HEAD" --exec "pwd" HEAD~2 >actual &&
+		FAKE_LINES="1 exec_git_show_HEAD exec_pwd 2
+				exec_git_show_HEAD exec_pwd" &&
+		export FAKE_LINES &&
+		git rebase -i HEAD~2 >expect
+	) &&
+	sed -e "1,11d" expect >expected &&
+	test_cmp expected actual
+'
+
+test_expect_success C_LOCALE_OUTPUT 'rebase -ix with --autosquash' '
+	git reset --hard execute &&
+	git checkout -b autosquash &&
+	echo second >second.txt &&
+	git add second.txt &&
+	git commit -m "fixup! two_exec" &&
+	echo bis >bis.txt &&
+	git add bis.txt &&
+	git commit -m "fixup! two_exec" &&
+	git checkout -b autosquash_actual &&
+	git rebase -i --exec "git show HEAD" --autosquash HEAD~4 >actual &&
+	git checkout autosquash &&
+	(
+		set_fake_editor &&
+		git checkout -b autosquash_expected &&
+		FAKE_LINES="1 fixup 3 fixup 4 exec_git_show_HEAD 2 exec_git_show_HEAD" &&
+		export FAKE_LINES &&
+		git rebase -i HEAD~4 >expect
+	) &&
+	sed -e "1,13d" expect >expected &&
+	test_cmp expected actual
+'
+
+test_expect_success 'rebase --exec works without -i ' '
+	git reset --hard execute &&
+	rm -rf exec_output &&
+	EDITOR="echo >invoked_editor" git rebase --exec "echo a line >>exec_output"  HEAD~2 2>actual &&
+	test_i18ngrep  "Successfully rebased and updated" actual &&
+	test_line_count = 2 exec_output &&
+	test_path_is_missing invoked_editor
+'
+
+test_expect_success 'rebase -i --exec without <CMD>' '
+	git reset --hard execute &&
+	test_must_fail git rebase -i --exec 2>actual &&
+	test_i18ngrep "requires a value" actual &&
+	git checkout primary
+'
+
+test_expect_success 'rebase -i --root re-order and drop commits' '
+	git checkout E &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="3 1 2 5" git rebase -i --root
+	) &&
+	test E = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test B = $(git cat-file commit HEAD^ | sed -ne \$p) &&
+	test A = $(git cat-file commit HEAD^^ | sed -ne \$p) &&
+	test C = $(git cat-file commit HEAD^^^ | sed -ne \$p) &&
+	test 0 = $(git cat-file commit HEAD^^^ | grep -c ^parent\ )
+'
+
+test_expect_success 'rebase -i --root retain root commit author and message' '
+	git checkout A &&
+	echo B >file7 &&
+	git add file7 &&
+	GIT_AUTHOR_NAME="Twerp Snog" git commit -m "different author" &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2" git rebase -i --root
+	) &&
+	git cat-file commit HEAD | grep -q "^author Twerp Snog" &&
+	git cat-file commit HEAD | grep -q "^different author$"
+'
+
+test_expect_success 'rebase -i --root temporary sentinel commit' '
+	git checkout B &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="2" git rebase -i --root
+	) &&
+	git cat-file commit HEAD | grep "^tree $EMPTY_TREE" &&
+	git rebase --abort
+'
+
+test_expect_success 'rebase -i --root fixup root commit' '
+	git checkout B &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 fixup 2" git rebase -i --root
+	) &&
+	test A = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test B = $(git show HEAD:file1) &&
+	test 0 = $(git cat-file commit HEAD | grep -c ^parent\ )
+'
+
+test_expect_success 'rebase -i --root reword original root commit' '
+	test_when_finished "test_might_fail git rebase --abort" &&
+	git checkout -b reword-original-root-branch primary &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="reword 1 2" FAKE_COMMIT_MESSAGE="A changed" \
+			git rebase -i --root
+	) &&
+	git show HEAD^ | grep "A changed" &&
+	test -z "$(git show -s --format=%p HEAD^)"
+'
+
+test_expect_success 'rebase -i --root reword new root commit' '
+	test_when_finished "test_might_fail git rebase --abort" &&
+	git checkout -b reword-now-root-branch primary &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="reword 3 1" FAKE_COMMIT_MESSAGE="C changed" \
+		git rebase -i --root
+	) &&
+	git show HEAD^ | grep "C changed" &&
+	test -z "$(git show -s --format=%p HEAD^)"
+'
+
+test_expect_success 'rebase -i --root when root has untracked file conflict' '
+	test_when_finished "reset_rebase" &&
+	git checkout -b failing-root-pick A &&
+	echo x >file2 &&
+	git rm file1 &&
+	git commit -m "remove file 1 add file 2" &&
+	echo z >file1 &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2" git rebase -i --root
+	) &&
+	rm file1 &&
+	git rebase --continue &&
+	test "$(git log -1 --format=%B)" = "remove file 1 add file 2" &&
+	test "$(git rev-list --count HEAD)" = 2
+'
+
+test_expect_success 'rebase -i --root reword root when root has untracked file conflict' '
+	test_when_finished "reset_rebase" &&
+	echo z>file1 &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="reword 1 2" \
+			FAKE_COMMIT_MESSAGE="Modified A" git rebase -i --root &&
+		rm file1 &&
+		FAKE_COMMIT_MESSAGE="Reworded A" git rebase --continue
+	) &&
+	test "$(git log -1 --format=%B HEAD^)" = "Reworded A" &&
+	test "$(git rev-list --count HEAD)" = 2
+'
+
+test_expect_success C_LOCALE_OUTPUT 'rebase --edit-todo does not work on non-interactive rebase' '
+	git checkout reword-original-root-branch &&
+	git reset --hard &&
+	git checkout conflict-branch &&
+	(
+		set_fake_editor &&
+		test_must_fail git rebase -f --apply --onto HEAD~2 HEAD~ &&
+		test_must_fail git rebase --edit-todo
+	) &&
+	git rebase --abort
+'
+
+test_expect_success 'rebase --edit-todo can be used to modify todo' '
+	git reset --hard &&
+	git checkout no-conflict-branch^0 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2 3" git rebase -i HEAD~3 &&
+		FAKE_LINES="2 1" git rebase --edit-todo &&
+		git rebase --continue
+	) &&
+	test M = $(git cat-file commit HEAD^ | sed -ne \$p) &&
+	test L = $(git cat-file commit HEAD | sed -ne \$p)
+'
+
+test_expect_success 'rebase -i produces readable reflog' '
+	git reset --hard &&
+	git branch -f branch-reflog-test H &&
+	git rebase -i --onto I F branch-reflog-test &&
+	cat >expect <<-\EOF &&
+	rebase (finish): returning to refs/heads/branch-reflog-test
+	rebase (pick): H
+	rebase (pick): G
+	rebase (start): checkout I
+	EOF
+	git reflog -n4 HEAD |
+	sed "s/[^:]*: //" >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'rebase -i respects core.commentchar' '
+	git reset --hard &&
+	git checkout E^0 &&
+	test_config core.commentchar "\\" &&
+	write_script remove-all-but-first.sh <<-\EOF &&
+	sed -e "2,\$s/^/\\\\/" "$1" >"$1.tmp" &&
+	mv "$1.tmp" "$1"
+	EOF
+	(
+		test_set_editor "$(pwd)/remove-all-but-first.sh" &&
+		git rebase -i B
+	) &&
+	test B = $(git cat-file commit HEAD^ | sed -ne \$p)
+'
+
+test_expect_success 'rebase -i respects core.commentchar=auto' '
+	test_config core.commentchar auto &&
+	write_script copy-edit-script.sh <<-\EOF &&
+	cp "$1" edit-script
+	EOF
+	test_when_finished "git rebase --abort || :" &&
+	(
+		test_set_editor "$(pwd)/copy-edit-script.sh" &&
+		git rebase -i HEAD^
+	) &&
+	test -z "$(grep -ve "^#" -e "^\$" -e "^pick" edit-script)"
+'
+
+test_expect_success 'rebase -i, with <onto> and <upstream> specified as :/quuxery' '
+	test_when_finished "git branch -D torebase" &&
+	git checkout -b torebase branch1 &&
+	upstream=$(git rev-parse ":/J") &&
+	onto=$(git rev-parse ":/A") &&
+	git rebase --onto $onto $upstream &&
+	git reset --hard branch1 &&
+	git rebase --onto ":/A" ":/J" &&
+	git checkout branch1
+'
+
+test_expect_success 'rebase -i with --strategy and -X' '
+	git checkout -b conflict-merge-use-theirs conflict-branch &&
+	git reset --hard HEAD^ &&
+	echo five >conflict &&
+	echo Z >file1 &&
+	git commit -a -m "one file conflict" &&
+	EDITOR=true git rebase -i --strategy=recursive -Xours conflict-branch &&
+	test $(git show conflict-branch:conflict) = $(cat conflict) &&
+	test $(cat file1) = Z
+'
+
+test_expect_success 'interrupted rebase -i with --strategy and -X' '
+	git checkout -b conflict-merge-use-theirs-interrupted conflict-branch &&
+	git reset --hard HEAD^ &&
+	>breakpoint &&
+	git add breakpoint &&
+	git commit -m "breakpoint for interactive mode" &&
+	echo five >conflict &&
+	echo Z >file1 &&
+	git commit -a -m "one file conflict" &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2" git rebase -i --strategy=recursive \
+			-Xours conflict-branch
+	) &&
+	git rebase --continue &&
+	test $(git show conflict-branch:conflict) = $(cat conflict) &&
+	test $(cat file1) = Z
+'
+
+test_expect_success 'rebase -i error on commits with \ in message' '
+	current_head=$(git rev-parse HEAD) &&
+	test_when_finished "git rebase --abort; git reset --hard $current_head; rm -f error" &&
+	test_commit TO-REMOVE will-conflict old-content &&
+	test_commit "\temp" will-conflict new-content dummy &&
+	test_must_fail env EDITOR=true git rebase -i HEAD^ --onto HEAD^^ 2>error &&
+	test_expect_code 1 grep  "	emp" error
+'
+
+test_expect_success 'short commit ID setup' '
+	test_when_finished "git checkout primary" &&
+	git checkout --orphan collide &&
+	git rm -rf . &&
+	(
+	unset test_tick &&
+	test_commit collide1 collide &&
+	test_commit --notick collide2 collide &&
+	test_commit --notick collide3 collide
+	)
+'
+
+if test -n "$GIT_TEST_FIND_COLLIDER"
+then
+	author="$(unset test_tick; test_tick; git var GIT_AUTHOR_IDENT)"
+	committer="$(unset test_tick; test_tick; git var GIT_COMMITTER_IDENT)"
+	blob="$(git rev-parse collide2:collide)"
+	from="$(git rev-parse collide1^0)"
+	repl="commit refs/heads/collider-&\\n"
+	repl="${repl}author $author\\ncommitter $committer\\n"
+	repl="${repl}data <<EOF\\ncollide2 &\\nEOF\\n"
+	repl="${repl}from $from\\nM 100644 $blob collide\\n"
+	test_seq 1 32768 | sed "s|.*|$repl|" >script &&
+	git fast-import <script &&
+	git pack-refs &&
+	git for-each-ref >refs &&
+	grep "^$(test_oid t3404_collision)" <refs >matches &&
+	cat matches &&
+	test_line_count -gt 2 matches || {
+		echo "Could not find a collider" >&2
+		exit 1
+	}
+fi
+
+test_expect_success 'short commit ID collide' '
+	test_oid_cache <<-EOF &&
+	# collision-related constants
+	t3404_collision	sha1:6bcd
+	t3404_collision	sha256:0161
+	t3404_collider	sha1:ac4f2ee
+	t3404_collider	sha256:16697
+	EOF
+	test_when_finished "reset_rebase && git checkout primary" &&
+	git checkout collide &&
+	colliding_id=$(test_oid t3404_collision) &&
+	hexsz=$(test_oid hexsz) &&
+	test $colliding_id = "$(git rev-parse HEAD | cut -c 1-4)" &&
+	test_config core.abbrev 4 &&
+	(
+		unset test_tick &&
+		test_tick &&
+		set_fake_editor &&
+		FAKE_COMMIT_MESSAGE="collide2 $(test_oid t3404_collider)" \
+		FAKE_LINES="reword 1 break 2" git rebase -i HEAD~2 &&
+		test $colliding_id = "$(git rev-parse HEAD | cut -c 1-4)" &&
+		grep "^pick $colliding_id " \
+			.git/rebase-merge/git-rebase-todo.tmp &&
+		grep "^pick [0-9a-f]\{$hexsz\}" \
+			.git/rebase-merge/git-rebase-todo &&
+		grep "^pick [0-9a-f]\{$hexsz\}" \
+			.git/rebase-merge/git-rebase-todo.backup &&
+		git rebase --continue
+	) &&
+	collide2="$(git rev-parse HEAD~1 | cut -c 1-4)" &&
+	collide3="$(git rev-parse collide3 | cut -c 1-4)" &&
+	test "$collide2" = "$collide3"
+'
+
+test_expect_success 'respect core.abbrev' '
+	git config core.abbrev 12 &&
+	(
+		set_cat_todo_editor &&
+		test_must_fail git rebase -i HEAD~4 >todo-list
+	) &&
+	test 4 = $(grep -c "pick [0-9a-f]\{12,\}" todo-list)
+'
+
+test_expect_success 'todo count' '
+	write_script dump-raw.sh <<-\EOF &&
+		cat "$1"
+	EOF
+	(
+		test_set_editor "$(pwd)/dump-raw.sh" &&
+		git rebase -i HEAD~4 >actual
+	) &&
+	test_i18ngrep "^# Rebase ..* onto ..* ([0-9]" actual
+'
+
+test_expect_success 'rebase -i commits that overwrite untracked files (pick)' '
+	git checkout --force branch2 &&
+	git clean -f &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2" git rebase -i A
+	) &&
+	test_cmp_rev HEAD F &&
+	test_path_is_missing file6 &&
+	>file6 &&
+	test_must_fail git rebase --continue &&
+	test_cmp_rev HEAD F &&
+	rm file6 &&
+	git rebase --continue &&
+	test_cmp_rev HEAD I
+'
+
+test_expect_success 'rebase -i commits that overwrite untracked files (squash)' '
+	git checkout --force branch2 &&
+	git clean -f &&
+	git tag original-branch2 &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 squash 2" git rebase -i A
+	) &&
+	test_cmp_rev HEAD F &&
+	test_path_is_missing file6 &&
+	>file6 &&
+	test_must_fail git rebase --continue &&
+	test_cmp_rev HEAD F &&
+	rm file6 &&
+	git rebase --continue &&
+	test $(git cat-file commit HEAD | sed -ne \$p) = I &&
+	git reset --hard original-branch2
+'
+
+test_expect_success 'rebase -i commits that overwrite untracked files (no ff)' '
+	git checkout --force branch2 &&
+	git clean -f &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1 2" git rebase -i --no-ff A
+	) &&
+	test $(git cat-file commit HEAD | sed -ne \$p) = F &&
+	test_path_is_missing file6 &&
+	>file6 &&
+	test_must_fail git rebase --continue &&
+	test $(git cat-file commit HEAD | sed -ne \$p) = F &&
+	rm file6 &&
+	git rebase --continue &&
+	test $(git cat-file commit HEAD | sed -ne \$p) = I
+'
+
+test_expect_success 'rebase --continue removes CHERRY_PICK_HEAD' '
+	git checkout -b commit-to-skip &&
+	for double in X 3 1
+	do
+		test_seq 5 | sed "s/$double/&&/" >seq &&
+		git add seq &&
+		test_tick &&
+		git commit -m seq-$double
+	done &&
+	git tag seq-onto &&
+	git reset --hard HEAD~2 &&
+	git cherry-pick seq-onto &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES= git rebase -i seq-onto
+	) &&
+	test -d .git/rebase-merge &&
+	git rebase --continue &&
+	git diff --exit-code seq-onto &&
+	test ! -d .git/rebase-merge &&
+	test ! -f .git/CHERRY_PICK_HEAD
+'
+
+rebase_setup_and_clean () {
+	test_when_finished "
+		git checkout primary &&
+		test_might_fail git branch -D $1 &&
+		test_might_fail git rebase --abort
+	" &&
+	git checkout -b $1 ${2:-primary}
+}
+
+test_expect_success 'drop' '
+	rebase_setup_and_clean drop-test &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 drop 2 3 d 4 5" git rebase -i --root
+	) &&
+	test E = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test C = $(git cat-file commit HEAD^ | sed -ne \$p) &&
+	test A = $(git cat-file commit HEAD^^ | sed -ne \$p)
+'
+
+test_expect_success 'rebase -i respects rebase.missingCommitsCheck = ignore' '
+	test_config rebase.missingCommitsCheck ignore &&
+	rebase_setup_and_clean missing-commit &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 4" git rebase -i --root 2>actual
+	) &&
+	test D = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test_i18ngrep \
+		"Successfully rebased and updated refs/heads/missing-commit" \
+		actual
+'
+
+test_expect_success 'rebase -i respects rebase.missingCommitsCheck = warn' '
+	cat >expect <<-EOF &&
+	Warning: some commits may have been dropped accidentally.
+	Dropped commits (newer to older):
+	 - $(git rev-list --pretty=oneline --abbrev-commit -1 primary)
+	To avoid this message, use "drop" to explicitly remove a commit.
+	EOF
+	test_config rebase.missingCommitsCheck warn &&
+	rebase_setup_and_clean missing-commit &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 2 3 4" git rebase -i --root 2>actual.2
+	) &&
+	head -n4 actual.2 >actual &&
+	test_i18ncmp expect actual &&
+	test D = $(git cat-file commit HEAD | sed -ne \$p)
+'
+
+test_expect_success 'rebase -i respects rebase.missingCommitsCheck = error' '
+	cat >expect <<-EOF &&
+	Warning: some commits may have been dropped accidentally.
+	Dropped commits (newer to older):
+	 - $(git rev-list --pretty=oneline --abbrev-commit -1 primary)
+	 - $(git rev-list --pretty=oneline --abbrev-commit -1 primary~2)
+	To avoid this message, use "drop" to explicitly remove a commit.
+
+	Use '\''git config rebase.missingCommitsCheck'\'' to change the level of warnings.
+	The possible behaviours are: ignore, warn, error.
+
+	You can fix this with '\''git rebase --edit-todo'\'' and then run '\''git rebase --continue'\''.
+	Or you can abort the rebase with '\''git rebase --abort'\''.
+	EOF
+	test_config rebase.missingCommitsCheck error &&
+	rebase_setup_and_clean missing-commit &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2 4" \
+			git rebase -i --root 2>actual &&
+		test_i18ncmp expect actual &&
+		cp .git/rebase-merge/git-rebase-todo.backup \
+			.git/rebase-merge/git-rebase-todo &&
+		FAKE_LINES="1 2 drop 3 4 drop 5" git rebase --edit-todo
+	) &&
+	git rebase --continue &&
+	test D = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test B = $(git cat-file commit HEAD^ | sed -ne \$p)
+'
+
+test_expect_success 'rebase --edit-todo respects rebase.missingCommitsCheck = ignore' '
+	test_config rebase.missingCommitsCheck ignore &&
+	rebase_setup_and_clean missing-commit &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="break 1 2 3 4 5" git rebase -i --root &&
+		FAKE_LINES="1 2 3 4" git rebase --edit-todo &&
+		git rebase --continue 2>actual
+	) &&
+	test D = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test_i18ngrep \
+		"Successfully rebased and updated refs/heads/missing-commit" \
+		actual
+'
+
+test_expect_success 'rebase --edit-todo respects rebase.missingCommitsCheck = warn' '
+	cat >expect <<-EOF &&
+	error: invalid line 1: badcmd $(git rev-list --pretty=oneline --abbrev-commit -1 primary~4)
+	Warning: some commits may have been dropped accidentally.
+	Dropped commits (newer to older):
+	 - $(git rev-list --pretty=oneline --abbrev-commit -1 primary)
+	 - $(git rev-list --pretty=oneline --abbrev-commit -1 primary~4)
+	To avoid this message, use "drop" to explicitly remove a commit.
+	EOF
+	head -n4 expect >expect.2 &&
+	tail -n1 expect >>expect.2 &&
+	tail -n4 expect.2 >expect.3 &&
+	test_config rebase.missingCommitsCheck warn &&
+	rebase_setup_and_clean missing-commit &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="bad 1 2 3 4 5" \
+			git rebase -i --root &&
+		cp .git/rebase-merge/git-rebase-todo.backup orig &&
+		FAKE_LINES="2 3 4" git rebase --edit-todo 2>actual.2 &&
+		head -n6 actual.2 >actual &&
+		test_i18ncmp expect actual &&
+		cp orig .git/rebase-merge/git-rebase-todo &&
+		FAKE_LINES="1 2 3 4" git rebase --edit-todo 2>actual.2 &&
+		head -n4 actual.2 >actual &&
+		test_i18ncmp expect.3 actual &&
+		git rebase --continue 2>actual
+	) &&
+	test D = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test_i18ngrep \
+		"Successfully rebased and updated refs/heads/missing-commit" \
+		actual
+'
+
+test_expect_success 'rebase --edit-todo respects rebase.missingCommitsCheck = error' '
+	cat >expect <<-EOF &&
+	error: invalid line 1: badcmd $(git rev-list --pretty=oneline --abbrev-commit -1 primary~4)
+	Warning: some commits may have been dropped accidentally.
+	Dropped commits (newer to older):
+	 - $(git rev-list --pretty=oneline --abbrev-commit -1 primary)
+	 - $(git rev-list --pretty=oneline --abbrev-commit -1 primary~4)
+	To avoid this message, use "drop" to explicitly remove a commit.
+
+	Use '\''git config rebase.missingCommitsCheck'\'' to change the level of warnings.
+	The possible behaviours are: ignore, warn, error.
+
+	You can fix this with '\''git rebase --edit-todo'\'' and then run '\''git rebase --continue'\''.
+	Or you can abort the rebase with '\''git rebase --abort'\''.
+	EOF
+	tail -n11 expect >expect.2 &&
+	head -n3 expect.2 >expect.3 &&
+	tail -n7 expect.2 >>expect.3 &&
+	test_config rebase.missingCommitsCheck error &&
+	rebase_setup_and_clean missing-commit &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="bad 1 2 3 4 5" \
+			git rebase -i --root &&
+		cp .git/rebase-merge/git-rebase-todo.backup orig &&
+		test_must_fail env FAKE_LINES="2 3 4" \
+			git rebase --edit-todo 2>actual &&
+		test_i18ncmp expect actual &&
+		test_must_fail git rebase --continue 2>actual &&
+		test_i18ncmp expect.2 actual &&
+		test_must_fail git rebase --edit-todo &&
+		cp orig .git/rebase-merge/git-rebase-todo &&
+		test_must_fail env FAKE_LINES="1 2 3 4" \
+			git rebase --edit-todo 2>actual &&
+		test_i18ncmp expect.3 actual &&
+		test_must_fail git rebase --continue 2>actual &&
+		test_i18ncmp expect.3 actual &&
+		cp orig .git/rebase-merge/git-rebase-todo &&
+		FAKE_LINES="1 2 3 4 drop 5" git rebase --edit-todo &&
+		git rebase --continue 2>actual
+	) &&
+	test D = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test_i18ngrep \
+		"Successfully rebased and updated refs/heads/missing-commit" \
+		actual
+'
+
+test_expect_success 'rebase.missingCommitsCheck = error after resolving conflicts' '
+	test_config rebase.missingCommitsCheck error &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="drop 1 break 2 3 4" git rebase -i A E
+	) &&
+	git rebase --edit-todo &&
+	test_must_fail git rebase --continue &&
+	echo x >file1 &&
+	git add file1 &&
+	git rebase --continue
+'
+
+test_expect_success 'rebase.missingCommitsCheck = error when editing for a second time' '
+	test_config rebase.missingCommitsCheck error &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 break 2 3" git rebase -i A D &&
+		cp .git/rebase-merge/git-rebase-todo todo &&
+		test_must_fail env FAKE_LINES=2 git rebase --edit-todo &&
+		GIT_SEQUENCE_EDITOR="cp todo" git rebase --edit-todo &&
+		git rebase --continue
+	)
+'
+
+test_expect_success 'respects rebase.abbreviateCommands with fixup, squash and exec' '
+	rebase_setup_and_clean abbrevcmd &&
+	test_commit "first" file1.txt "first line" first &&
+	test_commit "second" file1.txt "another line" second &&
+	test_commit "fixup! first" file2.txt "first line again" first_fixup &&
+	test_commit "squash! second" file1.txt "another line here" second_squash &&
+	cat >expected <<-EOF &&
+	p $(git rev-list --abbrev-commit -1 first) first
+	f $(git rev-list --abbrev-commit -1 first_fixup) fixup! first
+	x git show HEAD
+	p $(git rev-list --abbrev-commit -1 second) second
+	s $(git rev-list --abbrev-commit -1 second_squash) squash! second
+	x git show HEAD
+	EOF
+	git checkout abbrevcmd &&
+	test_config rebase.abbreviateCommands true &&
+	(
+		set_cat_todo_editor &&
+		test_must_fail git rebase -i --exec "git show HEAD" \
+			--autosquash primary >actual
+	) &&
+	test_cmp expected actual
+'
+
+test_expect_success 'static check of bad command' '
+	rebase_setup_and_clean bad-cmd &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2 3 bad 4 5" \
+		git rebase -i --root 2>actual &&
+		test_i18ngrep "badcmd $(git rev-list --oneline -1 primary~1)" \
+				actual &&
+		test_i18ngrep "You can fix this with .git rebase --edit-todo.." \
+				actual &&
+		FAKE_LINES="1 2 3 drop 4 5" git rebase --edit-todo
+	) &&
+	git rebase --continue &&
+	test E = $(git cat-file commit HEAD | sed -ne \$p) &&
+	test C = $(git cat-file commit HEAD^ | sed -ne \$p)
+'
+
+test_expect_success 'tabs and spaces are accepted in the todolist' '
+	rebase_setup_and_clean indented-comment &&
+	write_script add-indent.sh <<-\EOF &&
+	(
+		# Turn single spaces into space/tab mix
+		sed "1s/ /	/g; 2s/ /  /g; 3s/ / 	/g" "$1"
+		printf "\n\t# comment\n #more\n\t # comment\n"
+	) >"$1.new"
+	mv "$1.new" "$1"
+	EOF
+	(
+		test_set_editor "$(pwd)/add-indent.sh" &&
+		git rebase -i HEAD^^^
+	) &&
+	test E = $(git cat-file commit HEAD | sed -ne \$p)
+'
+
+test_expect_success 'static check of bad SHA-1' '
+	rebase_setup_and_clean bad-sha &&
+	(
+		set_fake_editor &&
+		test_must_fail env FAKE_LINES="1 2 edit fakesha 3 4 5 #" \
+			git rebase -i --root 2>actual &&
+			test_i18ngrep "edit XXXXXXX False commit" actual &&
+			test_i18ngrep "You can fix this with .git rebase --edit-todo.." \
+					actual &&
+		FAKE_LINES="1 2 4 5 6" git rebase --edit-todo
+	) &&
+	git rebase --continue &&
+	test E = $(git cat-file commit HEAD | sed -ne \$p)
+'
+
+test_expect_success 'editor saves as CR/LF' '
+	git checkout -b with-crlf &&
+	write_script add-crs.sh <<-\EOF &&
+	sed -e "s/\$/Q/" <"$1" | tr Q "\\015" >"$1".new &&
+	mv -f "$1".new "$1"
+	EOF
+	(
+		test_set_editor "$(pwd)/add-crs.sh" &&
+		git rebase -i HEAD^
+	)
+'
+
+test_expect_success 'rebase -i --gpg-sign=<key-id>' '
+	test_when_finished "test_might_fail git rebase --abort" &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i --gpg-sign="\"S I Gner\"" \
+			HEAD^ >out 2>err
+	) &&
+	test_i18ngrep "$SQ-S\"S I Gner\"$SQ" err
+'
+
+test_expect_success 'rebase -i --gpg-sign=<key-id> overrides commit.gpgSign' '
+	test_when_finished "test_might_fail git rebase --abort" &&
+	test_config commit.gpgsign true &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 1" git rebase -i --gpg-sign="\"S I Gner\"" \
+			HEAD^ >out 2>err
+	) &&
+	test_i18ngrep "$SQ-S\"S I Gner\"$SQ" err
+'
+
+test_expect_success 'valid author header after --root swap' '
+	rebase_setup_and_clean author-header no-conflict-branch &&
+	git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
+	git cat-file commit HEAD | grep ^author >expected &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="5 1" git rebase -i --root
+	) &&
+	git cat-file commit HEAD^ | grep ^author >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'valid author header when author contains single quote' '
+	rebase_setup_and_clean author-header no-conflict-branch &&
+	git commit --amend --author="Au ${SQ}thor <author@example.com>" --no-edit &&
+	git cat-file commit HEAD | grep ^author >expected &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2" git rebase -i HEAD~2
+	) &&
+	git cat-file commit HEAD | grep ^author >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'post-commit hook is called' '
+	test_when_finished "rm -f .git/hooks/post-commit" &&
+	>actual &&
+	mkdir -p .git/hooks &&
+	write_script .git/hooks/post-commit <<-\EOS &&
+	git rev-parse HEAD >>actual
+	EOS
+	(
+		set_fake_editor &&
+		FAKE_LINES="edit 4 1 reword 2 fixup 3" git rebase -i A E &&
+		echo x>file3 &&
+		git add file3 &&
+		FAKE_COMMIT_MESSAGE=edited git rebase --continue
+	) &&
+	git rev-parse HEAD@{5} HEAD@{4} HEAD@{3} HEAD@{2} HEAD@{1} HEAD \
+		>expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'correct error message for partial commit after empty pick' '
+	test_when_finished "git rebase --abort" &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="2 1 1" &&
+		export FAKE_LINES &&
+		test_must_fail git rebase -i A D
+	) &&
+	echo x >file1 &&
+	test_must_fail git commit file1 2>err &&
+	test_i18ngrep "cannot do a partial commit during a rebase." err
+'
+
+test_expect_success 'correct error message for commit --amend after empty pick' '
+	test_when_finished "git rebase --abort" &&
+	(
+		set_fake_editor &&
+		FAKE_LINES="1 1" &&
+		export FAKE_LINES &&
+		test_must_fail git rebase -i A D
+	) &&
+	echo x>file1 &&
+	test_must_fail git commit -a --amend 2>err &&
+	test_i18ngrep "middle of a rebase -- cannot amend." err
+'
+
+test_expect_success 'todo has correct onto hash' '
+	GIT_SEQUENCE_EDITOR=cat git rebase -i no-conflict-branch~4 no-conflict-branch >actual &&
+	onto=$(git rev-parse --short HEAD~4) &&
+	test_i18ngrep "^# Rebase ..* onto $onto" actual
+'
+
+test_expect_success 'ORIG_HEAD is updated correctly' '
+	test_when_finished "git checkout primary && git branch -D test-orig-head" &&
+	git checkout -b test-orig-head A &&
+	git commit --allow-empty -m A1 &&
+	git commit --allow-empty -m A2 &&
+	git commit --allow-empty -m A3 &&
+	git commit --allow-empty -m A4 &&
+	git rebase primary &&
+	test_cmp_rev ORIG_HEAD test-orig-head@{1}
+'
+
+# This must be the last test in this file
+test_expect_success '$EDITOR and friends are unchanged' '
+	test_editor_unchanged
+'
+
+test_done