Adding upstream version 1:2.43.0.upstream/1%2.43.0

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

1 files changed, 1663 insertions, 0 deletions

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
new file mode 100755
index 0000000..c54fd9e
--- /dev/null
+++ b/t/t3200-branch.sh
@@ -0,0 +1,1663 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Amos Waterland
+#
+
+test_description='git branch assorted tests'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-rebase.sh
+
+test_expect_success 'prepare a trivial repository' '
+	echo Hello >A &&
+	git update-index --add A &&
+	git commit -m "Initial commit." &&
+	git branch -M main &&
+	echo World >>A &&
+	git update-index --add A &&
+	git commit -m "Second commit." &&
+	HEAD=$(git rev-parse --verify HEAD)
+'
+
+test_expect_success 'git branch --help should not have created a bogus branch' '
+	test_might_fail git branch --man --help </dev/null >/dev/null 2>&1 &&
+	test_ref_missing refs/heads/--help
+'
+
+test_expect_success 'branch -h in broken repository' '
+	mkdir broken &&
+	(
+		cd broken &&
+		git init -b main &&
+		>.git/refs/heads/main &&
+		test_expect_code 129 git branch -h >usage 2>&1
+	) &&
+	test_grep "[Uu]sage" broken/usage
+'
+
+test_expect_success 'git branch abc should create a branch' '
+	git branch abc &&
+	test_ref_exists refs/heads/abc
+'
+
+test_expect_success 'git branch abc should fail when abc exists' '
+	test_must_fail git branch abc
+'
+
+test_expect_success 'git branch --force abc should fail when abc is checked out' '
+	test_when_finished git switch main &&
+	git switch abc &&
+	test_must_fail git branch --force abc HEAD~1
+'
+
+test_expect_success 'git branch --force abc should succeed when abc exists' '
+	git rev-parse HEAD~1 >expect &&
+	git branch --force abc HEAD~1 &&
+	git rev-parse abc >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch a/b/c should create a branch' '
+	git branch a/b/c &&
+	test_ref_exists refs/heads/a/b/c
+'
+
+test_expect_success 'git branch mb main... should create a branch' '
+	git branch mb main... &&
+	test_ref_exists refs/heads/mb
+'
+
+test_expect_success 'git branch HEAD should fail' '
+	test_must_fail git branch HEAD
+'
+
+cat >expect <<EOF
+$ZERO_OID $HEAD $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000	branch: Created from main
+EOF
+test_expect_success 'git branch --create-reflog d/e/f should create a branch and a log' '
+	GIT_COMMITTER_DATE="2005-05-26 23:30" \
+	git -c core.logallrefupdates=false branch --create-reflog d/e/f &&
+	test_ref_exists refs/heads/d/e/f &&
+	test_path_is_file .git/logs/refs/heads/d/e/f &&
+	test_cmp expect .git/logs/refs/heads/d/e/f
+'
+
+test_expect_success 'git branch -d d/e/f should delete a branch and a log' '
+	git branch -d d/e/f &&
+	test_ref_missing refs/heads/d/e/f &&
+	test_must_fail git reflog exists refs/heads/d/e/f
+'
+
+test_expect_success 'git branch j/k should work after branch j has been deleted' '
+	git branch j &&
+	git branch -d j &&
+	git branch j/k
+'
+
+test_expect_success 'git branch l should work after branch l/m has been deleted' '
+	git branch l/m &&
+	git branch -d l/m &&
+	git branch l
+'
+
+test_expect_success 'git branch -m dumps usage' '
+	test_expect_code 128 git branch -m 2>err &&
+	test_grep "branch name required" err
+'
+
+test_expect_success 'git branch -m m broken_symref should work' '
+	test_when_finished "git branch -D broken_symref" &&
+	git branch --create-reflog m &&
+	git symbolic-ref refs/heads/broken_symref refs/heads/i_am_broken &&
+	git branch -m m broken_symref &&
+	git reflog exists refs/heads/broken_symref &&
+	test_must_fail git reflog exists refs/heads/i_am_broken
+'
+
+test_expect_success 'git branch -m m m/m should work' '
+	git branch --create-reflog m &&
+	git branch -m m m/m &&
+	git reflog exists refs/heads/m/m
+'
+
+test_expect_success 'git branch -m n/n n should work' '
+	git branch --create-reflog n/n &&
+	git branch -m n/n n &&
+	git reflog exists refs/heads/n
+'
+
+# The topmost entry in reflog for branch bbb is about branch creation.
+# Hence, we compare bbb@{1} (instead of bbb@{0}) with aaa@{0}.
+
+test_expect_success 'git branch -m bbb should rename checked out branch' '
+	test_when_finished git branch -D bbb &&
+	test_when_finished git checkout main &&
+	git checkout -b aaa &&
+	git commit --allow-empty -m "a new commit" &&
+	git rev-parse aaa@{0} >expect &&
+	git branch -m bbb &&
+	git rev-parse bbb@{1} >actual &&
+	test_cmp expect actual &&
+	git symbolic-ref HEAD >actual &&
+	echo refs/heads/bbb >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'renaming checked out branch works with d/f conflict' '
+	test_when_finished "git branch -D foo/bar || git branch -D foo" &&
+	test_when_finished git checkout main &&
+	git checkout -b foo &&
+	git branch -m foo/bar &&
+	git symbolic-ref HEAD >actual &&
+	echo refs/heads/foo/bar >expect &&
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch -m o/o o should fail when o/p exists' '
+	git branch o/o &&
+	git branch o/p &&
+	test_must_fail git branch -m o/o o
+'
+
+test_expect_success 'git branch -m o/q o/p should fail when o/p exists' '
+	git branch o/q &&
+	test_must_fail git branch -m o/q o/p
+'
+
+test_expect_success 'git branch -M o/q o/p should work when o/p exists' '
+	git branch -M o/q o/p
+'
+
+test_expect_success 'git branch -m -f o/q o/p should work when o/p exists' '
+	git branch o/q &&
+	git branch -m -f o/q o/p
+'
+
+test_expect_success 'git branch -m q r/q should fail when r exists' '
+	git branch q &&
+	git branch r &&
+	test_must_fail git branch -m q r/q
+'
+
+test_expect_success 'git branch -M foo bar should fail when bar is checked out' '
+	git branch bar &&
+	git checkout -b foo &&
+	test_must_fail git branch -M bar foo
+'
+
+test_expect_success 'git branch -M foo bar should fail when bar is checked out in worktree' '
+	git branch -f bar &&
+	test_when_finished "git worktree remove wt && git branch -D wt" &&
+	git worktree add wt &&
+	test_must_fail git branch -M bar wt
+'
+
+test_expect_success 'git branch -M baz bam should succeed when baz is checked out' '
+	git checkout -b baz &&
+	git branch bam &&
+	git branch -M baz bam &&
+	test $(git rev-parse --abbrev-ref HEAD) = bam
+'
+
+test_expect_success 'git branch -M baz bam should add entries to .git/logs/HEAD' '
+	msg="Branch: renamed refs/heads/baz to refs/heads/bam" &&
+	grep " $ZERO_OID.*$msg$" .git/logs/HEAD &&
+	grep "^$ZERO_OID.*$msg$" .git/logs/HEAD
+'
+
+test_expect_success 'git branch -M should leave orphaned HEAD alone' '
+	git init -b main orphan &&
+	(
+		cd orphan &&
+		test_commit initial &&
+		git checkout --orphan lonely &&
+		grep lonely .git/HEAD &&
+		test_ref_missing refs/head/lonely &&
+		git branch -M main mistress &&
+		grep lonely .git/HEAD
+	)
+'
+
+test_expect_success 'resulting reflog can be shown by log -g' '
+	oid=$(git rev-parse HEAD) &&
+	cat >expect <<-EOF &&
+	HEAD@{0} $oid $msg
+	HEAD@{2} $oid checkout: moving from foo to baz
+	EOF
+	git log -g --format="%gd %H %gs" -2 HEAD >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch -M baz bam should succeed when baz is checked out as linked working tree' '
+	git checkout main &&
+	git worktree add -b baz bazdir &&
+	git worktree add -f bazdir2 baz &&
+	git branch -M baz bam &&
+	test $(git -C bazdir rev-parse --abbrev-ref HEAD) = bam &&
+	test $(git -C bazdir2 rev-parse --abbrev-ref HEAD) = bam &&
+	rm -r bazdir bazdir2 &&
+	git worktree prune
+'
+
+test_expect_success 'git branch -M fails if updating any linked working tree fails' '
+	git worktree add -b baz bazdir1 &&
+	git worktree add -f bazdir2 baz &&
+	touch .git/worktrees/bazdir1/HEAD.lock &&
+	test_must_fail git branch -M baz bam &&
+	test $(git -C bazdir2 rev-parse --abbrev-ref HEAD) = bam &&
+	git branch -M bam baz &&
+	rm .git/worktrees/bazdir1/HEAD.lock &&
+	touch .git/worktrees/bazdir2/HEAD.lock &&
+	test_must_fail git branch -M baz bam &&
+	test $(git -C bazdir1 rev-parse --abbrev-ref HEAD) = bam &&
+	rm -rf bazdir1 bazdir2 &&
+	git worktree prune
+'
+
+test_expect_success 'git branch -M baz bam should succeed within a worktree in which baz is checked out' '
+	git checkout -b baz &&
+	git worktree add -f bazdir baz &&
+	(
+		cd bazdir &&
+		git branch -M baz bam &&
+		echo bam >expect &&
+		git rev-parse --abbrev-ref HEAD >actual &&
+		test_cmp expect actual
+	) &&
+	echo bam >expect &&
+	git rev-parse --abbrev-ref HEAD >actual &&
+	test_cmp expect actual &&
+	rm -r bazdir &&
+	git worktree prune
+'
+
+test_expect_success 'git branch -M main should work when main is checked out' '
+	git checkout main &&
+	git branch -M main
+'
+
+test_expect_success 'git branch -M main main should work when main is checked out' '
+	git checkout main &&
+	git branch -M main main
+'
+
+test_expect_success 'git branch -M topic topic should work when main is checked out' '
+	git checkout main &&
+	git branch topic &&
+	git branch -M topic topic
+'
+
+test_expect_success 'git branch -M and -C fail on detached HEAD' '
+	git checkout HEAD^{} &&
+	test_when_finished git checkout - &&
+	echo "fatal: cannot rename the current branch while not on any" >expect &&
+	test_must_fail git branch -M must-fail 2>err &&
+	test_cmp expect err &&
+	echo "fatal: cannot copy the current branch while not on any" >expect &&
+	test_must_fail git branch -C must-fail 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success 'git branch -m should work with orphan branches' '
+	test_when_finished git checkout - &&
+	test_when_finished git worktree remove -f wt &&
+	git worktree add wt --detach &&
+	# rename orphan in another worktreee
+	git -C wt checkout --orphan orphan-foo-wt &&
+	git branch -m orphan-foo-wt orphan-bar-wt &&
+	test orphan-bar-wt=$(git -C orphan-worktree branch --show-current) &&
+	# rename orphan in the current worktree
+	git checkout --orphan orphan-foo &&
+	git branch -m orphan-foo orphan-bar &&
+	test orphan-bar=$(git branch --show-current)
+'
+
+test_expect_success 'git branch -d on orphan HEAD (merged)' '
+	test_when_finished git checkout main &&
+	git checkout --orphan orphan &&
+	test_when_finished "rm -rf .git/objects/commit-graph*" &&
+	git commit-graph write --reachable &&
+	git branch --track to-delete main &&
+	git branch -d to-delete
+'
+
+test_expect_success 'git branch -d on orphan HEAD (merged, graph)' '
+	test_when_finished git checkout main &&
+	git checkout --orphan orphan &&
+	git branch --track to-delete main &&
+	git branch -d to-delete
+'
+
+test_expect_success 'git branch -d on orphan HEAD (unmerged)' '
+	test_when_finished git checkout main &&
+	git checkout --orphan orphan &&
+	test_when_finished "git branch -D to-delete" &&
+	git branch to-delete main &&
+	test_must_fail git branch -d to-delete 2>err &&
+	grep "not fully merged" err
+'
+
+test_expect_success 'git branch -d on orphan HEAD (unmerged, graph)' '
+	test_when_finished git checkout main &&
+	git checkout --orphan orphan &&
+	test_when_finished "git branch -D to-delete" &&
+	git branch to-delete main &&
+	test_when_finished "rm -rf .git/objects/commit-graph*" &&
+	git commit-graph write --reachable &&
+	test_must_fail git branch -d to-delete 2>err &&
+	grep "not fully merged" err
+'
+
+test_expect_success 'git branch -v -d t should work' '
+	git branch t &&
+	git rev-parse --verify refs/heads/t &&
+	git branch -v -d t &&
+	test_must_fail git rev-parse --verify refs/heads/t
+'
+
+test_expect_success 'git branch -v -m t s should work' '
+	git branch t &&
+	git rev-parse --verify refs/heads/t &&
+	git branch -v -m t s &&
+	test_must_fail git rev-parse --verify refs/heads/t &&
+	git rev-parse --verify refs/heads/s &&
+	git branch -d s
+'
+
+test_expect_success 'git branch -m -d t s should fail' '
+	git branch t &&
+	git rev-parse refs/heads/t &&
+	test_must_fail git branch -m -d t s &&
+	git branch -d t &&
+	test_must_fail git rev-parse refs/heads/t
+'
+
+test_expect_success 'git branch --list -d t should fail' '
+	git branch t &&
+	git rev-parse refs/heads/t &&
+	test_must_fail git branch --list -d t &&
+	git branch -d t &&
+	test_must_fail git rev-parse refs/heads/t
+'
+
+test_expect_success 'deleting checked-out branch from repo that is a submodule' '
+	test_when_finished "rm -rf repo1 repo2" &&
+
+	git init repo1 &&
+	git init repo1/sub &&
+	test_commit -C repo1/sub x &&
+	test_config_global protocol.file.allow always &&
+	git -C repo1 submodule add ./sub &&
+	git -C repo1 commit -m "adding sub" &&
+
+	git clone --recurse-submodules repo1 repo2 &&
+	git -C repo2/sub checkout -b work &&
+	test_must_fail git -C repo2/sub branch -D work
+'
+
+test_expect_success 'bare main worktree has HEAD at branch deleted by secondary worktree' '
+	test_when_finished "rm -rf nonbare base secondary" &&
+
+	git init -b main nonbare &&
+	test_commit -C nonbare x &&
+	git clone --bare nonbare bare &&
+	git -C bare worktree add --detach ../secondary main &&
+	git -C secondary branch -D main
+'
+
+test_expect_success 'git branch --list -v with --abbrev' '
+	test_when_finished "git branch -D t" &&
+	git branch t &&
+	git branch -v --list t >actual.default &&
+	git branch -v --list --abbrev t >actual.abbrev &&
+	test_cmp actual.default actual.abbrev &&
+
+	git branch -v --list --no-abbrev t >actual.noabbrev &&
+	git branch -v --list --abbrev=0 t >actual.0abbrev &&
+	git -c core.abbrev=no branch -v --list t >actual.noabbrev-conf &&
+	test_cmp actual.noabbrev actual.0abbrev &&
+	test_cmp actual.noabbrev actual.noabbrev-conf &&
+
+	git branch -v --list --abbrev=36 t >actual.36abbrev &&
+	# how many hexdigits are used?
+	read name objdefault rest <actual.abbrev &&
+	read name obj36 rest <actual.36abbrev &&
+	objfull=$(git rev-parse --verify t) &&
+
+	# are we really getting abbreviations?
+	test "$obj36" != "$objdefault" &&
+	expr "$obj36" : "$objdefault" >/dev/null &&
+	test "$objfull" != "$obj36" &&
+	expr "$objfull" : "$obj36" >/dev/null
+
+'
+
+test_expect_success 'git branch --column' '
+	COLUMNS=81 git branch --column=column >actual &&
+	cat >expect <<\EOF &&
+  a/b/c   bam     foo     l     * main    n       o/p     r
+  abc     bar     j/k     m/m     mb      o/o     q       topic
+EOF
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch --column with an extremely long branch name' '
+	long=this/is/a/part/of/long/branch/name &&
+	long=z$long/$long/$long/$long &&
+	test_when_finished "git branch -d $long" &&
+	git branch $long &&
+	COLUMNS=80 git branch --column=column >actual &&
+	cat >expect <<EOF &&
+  a/b/c
+  abc
+  bam
+  bar
+  foo
+  j/k
+  l
+  m/m
+* main
+  mb
+  n
+  o/o
+  o/p
+  q
+  r
+  topic
+  $long
+EOF
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch with column.*' '
+	git config column.ui column &&
+	git config column.branch "dense" &&
+	COLUMNS=80 git branch >actual &&
+	git config --unset column.branch &&
+	git config --unset column.ui &&
+	cat >expect <<\EOF &&
+  a/b/c   bam   foo   l   * main   n     o/p   r
+  abc     bar   j/k   m/m   mb     o/o   q     topic
+EOF
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch --column -v should fail' '
+	test_must_fail git branch --column -v
+'
+
+test_expect_success 'git branch -v with column.ui ignored' '
+	git config column.ui column &&
+	COLUMNS=80 git branch -v | cut -c -8 | sed "s/ *$//" >actual &&
+	git config --unset column.ui &&
+	cat >expect <<\EOF &&
+  a/b/c
+  abc
+  bam
+  bar
+  foo
+  j/k
+  l
+  m/m
+* main
+  mb
+  n
+  o/o
+  o/p
+  q
+  r
+  topic
+EOF
+	test_cmp expect actual
+'
+
+mv .git/config .git/config-saved
+
+test_expect_success SHA1 'git branch -m q q2 without config should succeed' '
+	git branch -m q q2 &&
+	git branch -m q2 q
+'
+
+mv .git/config-saved .git/config
+
+git config branch.s/s.dummy Hello
+
+test_expect_success 'git branch -m s/s s should work when s/t is deleted' '
+	git branch --create-reflog s/s &&
+	git reflog exists refs/heads/s/s &&
+	git branch --create-reflog s/t &&
+	git reflog exists refs/heads/s/t &&
+	git branch -d s/t &&
+	git branch -m s/s s &&
+	git reflog exists refs/heads/s
+'
+
+test_expect_success 'config information was renamed, too' '
+	test $(git config branch.s.dummy) = Hello &&
+	test_must_fail git config branch.s/s.dummy
+'
+
+test_expect_success 'git branch -m correctly renames multiple config sections' '
+	test_when_finished "git checkout main" &&
+	git checkout -b source main &&
+
+	# Assert that a config file with multiple config sections has
+	# those sections preserved...
+	cat >expect <<-\EOF &&
+	branch.dest.key1=value1
+	some.gar.b=age
+	branch.dest.key2=value2
+	EOF
+	cat >config.branch <<\EOF &&
+;; Note the lack of -\EOF above & mixed indenting here. This is
+;; intentional, we are also testing that the formatting of copied
+;; sections is preserved.
+
+;; Comment for source. Tabs
+[branch "source"]
+	;; Comment for the source value
+	key1 = value1
+;; Comment for some.gar. Spaces
+[some "gar"]
+    ;; Comment for the some.gar value
+    b = age
+;; Comment for source, again. Mixed tabs/spaces.
+[branch "source"]
+    ;; Comment for the source value, again
+	key2 = value2
+EOF
+	cat config.branch >>.git/config &&
+	git branch -m source dest &&
+	git config -f .git/config -l | grep -F -e source -e dest -e some.gar >actual &&
+	test_cmp expect actual &&
+
+	# ...and that the comments for those sections are also
+	# preserved.
+	cat config.branch | sed "s/\"source\"/\"dest\"/" >expect &&
+	sed -n -e "/Note the lack/,\$p" .git/config >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch -c dumps usage' '
+	test_expect_code 128 git branch -c 2>err &&
+	test_grep "branch name required" err
+'
+
+test_expect_success 'git branch --copy dumps usage' '
+	test_expect_code 128 git branch --copy 2>err &&
+	test_grep "branch name required" err
+'
+
+test_expect_success 'git branch -c d e should work' '
+	git branch --create-reflog d &&
+	git reflog exists refs/heads/d &&
+	git config branch.d.dummy Hello &&
+	git branch -c d e &&
+	git reflog exists refs/heads/d &&
+	git reflog exists refs/heads/e &&
+	echo Hello >expect &&
+	git config branch.e.dummy >actual &&
+	test_cmp expect actual &&
+	echo Hello >expect &&
+	git config branch.d.dummy >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch --copy is a synonym for -c' '
+	git branch --create-reflog copy &&
+	git reflog exists refs/heads/copy &&
+	git config branch.copy.dummy Hello &&
+	git branch --copy copy copy-to &&
+	git reflog exists refs/heads/copy &&
+	git reflog exists refs/heads/copy-to &&
+	echo Hello >expect &&
+	git config branch.copy.dummy >actual &&
+	test_cmp expect actual &&
+	echo Hello >expect &&
+	git config branch.copy-to.dummy >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'git branch -c ee ef should copy ee to create branch ef' '
+	git checkout -b ee &&
+	git reflog exists refs/heads/ee &&
+	git config branch.ee.dummy Hello &&
+	git branch -c ee ef &&
+	git reflog exists refs/heads/ee &&
+	git reflog exists refs/heads/ef &&
+	test $(git config branch.ee.dummy) = Hello &&
+	test $(git config branch.ef.dummy) = Hello &&
+	test $(git rev-parse --abbrev-ref HEAD) = ee
+'
+
+test_expect_success 'git branch -c f/f g/g should work' '
+	git branch --create-reflog f/f &&
+	git reflog exists refs/heads/f/f &&
+	git config branch.f/f.dummy Hello &&
+	git branch -c f/f g/g &&
+	git reflog exists refs/heads/f/f &&
+	git reflog exists refs/heads/g/g &&
+	test $(git config branch.f/f.dummy) = Hello &&
+	test $(git config branch.g/g.dummy) = Hello
+'
+
+test_expect_success 'git branch -c m2 m2 should work' '
+	git branch --create-reflog m2 &&
+	git reflog exists refs/heads/m2 &&
+	git config branch.m2.dummy Hello &&
+	git branch -c m2 m2 &&
+	git reflog exists refs/heads/m2 &&
+	test $(git config branch.m2.dummy) = Hello
+'
+
+test_expect_success 'git branch -c zz zz/zz should fail' '
+	git branch --create-reflog zz &&
+	git reflog exists refs/heads/zz &&
+	test_must_fail git branch -c zz zz/zz
+'
+
+test_expect_success 'git branch -c b/b b should fail' '
+	git branch --create-reflog b/b &&
+	test_must_fail git branch -c b/b b
+'
+
+test_expect_success 'git branch -C o/q o/p should work when o/p exists' '
+	git branch --create-reflog o/q &&
+	git reflog exists refs/heads/o/q &&
+	git reflog exists refs/heads/o/p &&
+	git branch -C o/q o/p
+'
+
+test_expect_success 'git branch -c -f o/q o/p should work when o/p exists' '
+	git reflog exists refs/heads/o/q &&
+	git reflog exists refs/heads/o/p &&
+	git branch -c -f o/q o/p
+'
+
+test_expect_success 'git branch -c qq rr/qq should fail when rr exists' '
+	git branch qq &&
+	git branch rr &&
+	test_must_fail git branch -c qq rr/qq
+'
+
+test_expect_success 'git branch -C b1 b2 should fail when b2 is checked out' '
+	git branch b1 &&
+	git checkout -b b2 &&
+	test_must_fail git branch -C b1 b2
+'
+
+test_expect_success 'git branch -C c1 c2 should succeed when c1 is checked out' '
+	git checkout -b c1 &&
+	git branch c2 &&
+	git branch -C c1 c2 &&
+	test $(git rev-parse --abbrev-ref HEAD) = c1
+'
+
+test_expect_success 'git branch -C c1 c2 should never touch HEAD' '
+	msg="Branch: copied refs/heads/c1 to refs/heads/c2" &&
+	! grep "$msg$" .git/logs/HEAD
+'
+
+test_expect_success 'git branch -C main should work when main is checked out' '
+	git checkout main &&
+	git branch -C main
+'
+
+test_expect_success 'git branch -C main main should work when main is checked out' '
+	git checkout main &&
+	git branch -C main main
+'
+
+test_expect_success 'git branch -C main5 main5 should work when main is checked out' '
+	git checkout main &&
+	git branch main5 &&
+	git branch -C main5 main5
+'
+
+test_expect_success 'git branch -C ab cd should overwrite existing config for cd' '
+	git branch --create-reflog cd &&
+	git reflog exists refs/heads/cd &&
+	git config branch.cd.dummy CD &&
+	git branch --create-reflog ab &&
+	git reflog exists refs/heads/ab &&
+	git config branch.ab.dummy AB &&
+	git branch -C ab cd &&
+	git reflog exists refs/heads/ab &&
+	git reflog exists refs/heads/cd &&
+	test $(git config branch.ab.dummy) = AB &&
+	test $(git config branch.cd.dummy) = AB
+'
+
+test_expect_success 'git branch -c correctly copies multiple config sections' '
+	FOO=1 &&
+	export FOO &&
+	test_when_finished "git checkout main" &&
+	git checkout -b source2 main &&
+
+	# Assert that a config file with multiple config sections has
+	# those sections preserved...
+	cat >expect <<-\EOF &&
+	branch.source2.key1=value1
+	branch.dest2.key1=value1
+	more.gar.b=age
+	branch.source2.key2=value2
+	branch.dest2.key2=value2
+	EOF
+	cat >config.branch <<\EOF &&
+;; Note the lack of -\EOF above & mixed indenting here. This is
+;; intentional, we are also testing that the formatting of copied
+;; sections is preserved.
+
+;; Comment for source2. Tabs
+[branch "source2"]
+	;; Comment for the source2 value
+	key1 = value1
+;; Comment for more.gar. Spaces
+[more "gar"]
+    ;; Comment for the more.gar value
+    b = age
+;; Comment for source2, again. Mixed tabs/spaces.
+[branch "source2"]
+    ;; Comment for the source2 value, again
+	key2 = value2
+EOF
+	cat config.branch >>.git/config &&
+	git branch -c source2 dest2 &&
+	git config -f .git/config -l | grep -F -e source2 -e dest2 -e more.gar >actual &&
+	test_cmp expect actual &&
+
+	# ...and that the comments and formatting for those sections
+	# is also preserved.
+	cat >expect <<\EOF &&
+;; Comment for source2. Tabs
+[branch "source2"]
+	;; Comment for the source2 value
+	key1 = value1
+;; Comment for more.gar. Spaces
+[branch "dest2"]
+	;; Comment for the source2 value
+	key1 = value1
+;; Comment for more.gar. Spaces
+[more "gar"]
+    ;; Comment for the more.gar value
+    b = age
+;; Comment for source2, again. Mixed tabs/spaces.
+[branch "source2"]
+    ;; Comment for the source2 value, again
+	key2 = value2
+[branch "dest2"]
+    ;; Comment for the source2 value, again
+	key2 = value2
+EOF
+	sed -n -e "/Comment for source2/,\$p" .git/config >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'deleting a symref' '
+	git branch target &&
+	git symbolic-ref refs/heads/symref refs/heads/target &&
+	echo "Deleted branch symref (was refs/heads/target)." >expect &&
+	git branch -d symref >actual &&
+	test_ref_exists refs/heads/target &&
+	test_ref_missing refs/heads/symref &&
+	test_cmp expect actual
+'
+
+test_expect_success 'deleting a dangling symref' '
+	git symbolic-ref refs/heads/dangling-symref nowhere &&
+	test_path_is_file .git/refs/heads/dangling-symref &&
+	echo "Deleted branch dangling-symref (was nowhere)." >expect &&
+	git branch -d dangling-symref >actual &&
+	test_ref_missing refs/heads/dangling-symref &&
+	test_cmp expect actual
+'
+
+test_expect_success 'deleting a self-referential symref' '
+	git symbolic-ref refs/heads/self-reference refs/heads/self-reference &&
+	test_ref_exists refs/heads/self-reference &&
+	echo "Deleted branch self-reference (was refs/heads/self-reference)." >expect &&
+	git branch -d self-reference >actual &&
+	test_ref_missing refs/heads/self-reference &&
+	test_cmp expect actual
+'
+
+test_expect_success 'renaming a symref is not allowed' '
+	git symbolic-ref refs/heads/topic refs/heads/main &&
+	test_must_fail git branch -m topic new-topic &&
+	git symbolic-ref refs/heads/topic &&
+	test_ref_exists refs/heads/main &&
+	test_ref_missing refs/heads/new-topic
+'
+
+test_expect_success SYMLINKS 'git branch -m u v should fail when the reflog for u is a symlink' '
+	git branch --create-reflog u &&
+	mv .git/logs/refs/heads/u real-u &&
+	ln -s real-u .git/logs/refs/heads/u &&
+	test_must_fail git branch -m u v
+'
+
+test_expect_success SYMLINKS 'git branch -m with symlinked .git/refs' '
+	test_when_finished "rm -rf subdir" &&
+	git init --bare subdir &&
+
+	rm -rfv subdir/refs subdir/objects subdir/packed-refs &&
+	ln -s ../.git/refs subdir/refs &&
+	ln -s ../.git/objects subdir/objects &&
+	ln -s ../.git/packed-refs subdir/packed-refs &&
+
+	git -C subdir rev-parse --absolute-git-dir >subdir.dir &&
+	git rev-parse --absolute-git-dir >our.dir &&
+	! test_cmp subdir.dir our.dir &&
+
+	git -C subdir log &&
+	git -C subdir branch rename-src &&
+	git rev-parse rename-src >expect &&
+	git -C subdir branch -m rename-src rename-dest &&
+	git rev-parse rename-dest >actual &&
+	test_cmp expect actual &&
+	git branch -D rename-dest
+'
+
+test_expect_success 'test tracking setup via --track' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --track my1 local/main &&
+	test $(git config branch.my1.remote) = local &&
+	test $(git config branch.my1.merge) = refs/heads/main
+'
+
+test_expect_success 'test tracking setup (non-wildcard, matching)' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/main:refs/remotes/local/main &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --track my4 local/main &&
+	test $(git config branch.my4.remote) = local &&
+	test $(git config branch.my4.merge) = refs/heads/main
+'
+
+test_expect_success 'tracking setup fails on non-matching refspec' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git config remote.local.fetch refs/heads/s:refs/remotes/local/s &&
+	test_must_fail git branch --track my5 local/main &&
+	test_must_fail git config branch.my5.remote &&
+	test_must_fail git config branch.my5.merge
+'
+
+test_expect_success 'test tracking setup via config' '
+	git config branch.autosetupmerge true &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch my3 local/main &&
+	test $(git config branch.my3.remote) = local &&
+	test $(git config branch.my3.merge) = refs/heads/main
+'
+
+test_expect_success 'test overriding tracking setup via --no-track' '
+	git config branch.autosetupmerge true &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track my2 local/main &&
+	git config branch.autosetupmerge false &&
+	! test "$(git config branch.my2.remote)" = local &&
+	! test "$(git config branch.my2.merge)" = refs/heads/main
+'
+
+test_expect_success 'no tracking without .fetch entries' '
+	git config branch.autosetupmerge true &&
+	git branch my6 s &&
+	git config branch.autosetupmerge false &&
+	test -z "$(git config branch.my6.remote)" &&
+	test -z "$(git config branch.my6.merge)"
+'
+
+test_expect_success 'test tracking setup via --track but deeper' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/o/o || git fetch local) &&
+	git branch --track my7 local/o/o &&
+	test "$(git config branch.my7.remote)" = local &&
+	test "$(git config branch.my7.merge)" = refs/heads/o/o
+'
+
+test_expect_success 'test deleting branch deletes branch config' '
+	git branch -d my7 &&
+	test -z "$(git config branch.my7.remote)" &&
+	test -z "$(git config branch.my7.merge)"
+'
+
+test_expect_success 'test deleting branch without config' '
+	git branch my7 s &&
+	sha1=$(git rev-parse my7 | cut -c 1-7) &&
+	echo "Deleted branch my7 (was $sha1)." >expect &&
+	git branch -d my7 >actual 2>&1 &&
+	test_cmp expect actual
+'
+
+test_expect_success 'deleting currently checked out branch fails' '
+	git worktree add -b my7 my7 &&
+	test_must_fail git -C my7 branch -d my7 &&
+	test_must_fail git branch -d my7 2>actual &&
+	grep "^error: cannot delete branch .my7. used by worktree at " actual &&
+	rm -r my7 &&
+	git worktree prune
+'
+
+test_expect_success 'deleting in-use branch fails' '
+	git worktree add my7 &&
+	test_commit -C my7 bt7 &&
+	git -C my7 bisect start HEAD HEAD~2 &&
+	test_must_fail git -C my7 branch -d my7 &&
+	test_must_fail git branch -d my7 2>actual &&
+	grep "^error: cannot delete branch .my7. used by worktree at " actual &&
+	rm -r my7 &&
+	git worktree prune
+'
+
+test_expect_success 'test --track without .fetch entries' '
+	git branch --track my8 &&
+	test "$(git config branch.my8.remote)" &&
+	test "$(git config branch.my8.merge)"
+'
+
+test_expect_success 'branch from non-branch HEAD w/autosetupmerge=always' '
+	git config branch.autosetupmerge always &&
+	git branch my9 HEAD^ &&
+	git config branch.autosetupmerge false
+'
+
+test_expect_success 'branch from non-branch HEAD w/--track causes failure' '
+	test_must_fail git branch --track my10 HEAD^
+'
+
+test_expect_success 'branch from tag w/--track causes failure' '
+	git tag foobar &&
+	test_must_fail git branch --track my11 foobar
+'
+
+test_expect_success 'simple tracking works when remote branch name matches' '
+	test_when_finished "rm -rf otherserver" &&
+	git init otherserver &&
+	test_commit -C otherserver my_commit 1 &&
+	git -C otherserver branch feature &&
+	test_config branch.autosetupmerge simple &&
+	test_config remote.otherserver.url otherserver &&
+	test_config remote.otherserver.fetch refs/heads/*:refs/remotes/otherserver/* &&
+	git fetch otherserver &&
+	git branch feature otherserver/feature &&
+	test_cmp_config otherserver branch.feature.remote &&
+	test_cmp_config refs/heads/feature branch.feature.merge
+'
+
+test_expect_success 'simple tracking skips when remote branch name does not match' '
+	test_config branch.autosetupmerge simple &&
+	test_config remote.local.url . &&
+	test_config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git fetch local &&
+	git branch my-other local/main &&
+	test_cmp_config "" --default "" branch.my-other.remote &&
+	test_cmp_config "" --default "" branch.my-other.merge
+'
+
+test_expect_success 'simple tracking skips when remote ref is not a branch' '
+	test_config branch.autosetupmerge simple &&
+	test_config remote.localtags.url . &&
+	test_config remote.localtags.fetch refs/tags/*:refs/remotes/localtags/* &&
+	git tag mytag12 main &&
+	git fetch localtags &&
+	git branch mytag12 localtags/mytag12 &&
+	test_cmp_config "" --default "" branch.mytag12.remote &&
+	test_cmp_config "" --default "" branch.mytag12.merge
+'
+
+test_expect_success '--set-upstream-to fails on multiple branches' '
+	echo "fatal: too many arguments to set new upstream" >expect &&
+	test_must_fail git branch --set-upstream-to main a b c 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success '--set-upstream-to fails on detached HEAD' '
+	git checkout HEAD^{} &&
+	test_when_finished git checkout - &&
+	echo "fatal: could not set upstream of HEAD to main when it does not point to any branch" >expect &&
+	test_must_fail git branch --set-upstream-to main 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success '--set-upstream-to fails on a missing dst branch' '
+	echo "fatal: branch '"'"'does-not-exist'"'"' does not exist" >expect &&
+	test_must_fail git branch --set-upstream-to main does-not-exist 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success '--set-upstream-to fails on a missing src branch' '
+	test_must_fail git branch --set-upstream-to does-not-exist main 2>err &&
+	test_grep "the requested upstream branch '"'"'does-not-exist'"'"' does not exist" err
+'
+
+test_expect_success '--set-upstream-to fails on a non-ref' '
+	echo "fatal: cannot set up tracking information; starting point '"'"'HEAD^{}'"'"' is not a branch" >expect &&
+	test_must_fail git branch --set-upstream-to HEAD^{} 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success '--set-upstream-to fails on locked config' '
+	test_when_finished "rm -f .git/config.lock" &&
+	>.git/config.lock &&
+	git branch locked &&
+	test_must_fail git branch --set-upstream-to locked 2>err &&
+	test_grep "could not lock config file .git/config" err
+'
+
+test_expect_success 'use --set-upstream-to modify HEAD' '
+	test_config branch.main.remote foo &&
+	test_config branch.main.merge foo &&
+	git branch my12 &&
+	git branch --set-upstream-to my12 &&
+	test "$(git config branch.main.remote)" = "." &&
+	test "$(git config branch.main.merge)" = "refs/heads/my12"
+'
+
+test_expect_success 'use --set-upstream-to modify a particular branch' '
+	git branch my13 &&
+	git branch --set-upstream-to main my13 &&
+	test_when_finished "git branch --unset-upstream my13" &&
+	test "$(git config branch.my13.remote)" = "." &&
+	test "$(git config branch.my13.merge)" = "refs/heads/main"
+'
+
+test_expect_success '--unset-upstream should fail if given a non-existent branch' '
+	echo "fatal: branch '"'"'i-dont-exist'"'"' has no upstream information" >expect &&
+	test_must_fail git branch --unset-upstream i-dont-exist 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success '--unset-upstream should fail if config is locked' '
+	test_when_finished "rm -f .git/config.lock" &&
+	git branch --set-upstream-to locked &&
+	>.git/config.lock &&
+	test_must_fail git branch --unset-upstream 2>err &&
+	test_grep "could not lock config file .git/config" err
+'
+
+test_expect_success 'test --unset-upstream on HEAD' '
+	git branch my14 &&
+	test_config branch.main.remote foo &&
+	test_config branch.main.merge foo &&
+	git branch --set-upstream-to my14 &&
+	git branch --unset-upstream &&
+	test_must_fail git config branch.main.remote &&
+	test_must_fail git config branch.main.merge &&
+	# fail for a branch without upstream set
+	echo "fatal: branch '"'"'main'"'"' has no upstream information" >expect &&
+	test_must_fail git branch --unset-upstream 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success '--unset-upstream should fail on multiple branches' '
+	echo "fatal: too many arguments to unset upstream" >expect &&
+	test_must_fail git branch --unset-upstream a b c 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success '--unset-upstream should fail on detached HEAD' '
+	git checkout HEAD^{} &&
+	test_when_finished git checkout - &&
+	echo "fatal: could not unset upstream of HEAD when it does not point to any branch" >expect &&
+	test_must_fail git branch --unset-upstream 2>err &&
+	test_cmp expect err
+'
+
+test_expect_success 'test --unset-upstream on a particular branch' '
+	git branch my15 &&
+	git branch --set-upstream-to main my14 &&
+	git branch --unset-upstream my14 &&
+	test_must_fail git config branch.my14.remote &&
+	test_must_fail git config branch.my14.merge
+'
+
+test_expect_success 'disabled option --set-upstream fails' '
+	test_must_fail git branch --set-upstream origin/main
+'
+
+test_expect_success '--set-upstream-to notices an error to set branch as own upstream' "
+	git branch --set-upstream-to refs/heads/my13 my13 2>actual &&
+	cat >expect <<-\EOF &&
+	warning: not setting branch 'my13' as its own upstream
+	EOF
+	test_expect_code 1 git config branch.my13.remote &&
+	test_expect_code 1 git config branch.my13.merge &&
+	test_cmp expect actual
+"
+
+# Keep this test last, as it changes the current branch
+cat >expect <<EOF
+$ZERO_OID $HEAD $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL> 1117150200 +0000	branch: Created from main
+EOF
+test_expect_success 'git checkout -b g/h/i -l should create a branch and a log' '
+	GIT_COMMITTER_DATE="2005-05-26 23:30" \
+	git checkout -b g/h/i -l main &&
+	test_ref_exists refs/heads/g/h/i &&
+	test_path_is_file .git/logs/refs/heads/g/h/i &&
+	test_cmp expect .git/logs/refs/heads/g/h/i
+'
+
+test_expect_success 'checkout -b makes reflog by default' '
+	git checkout main &&
+	git config --unset core.logAllRefUpdates &&
+	git checkout -b alpha &&
+	git rev-parse --verify alpha@{0}
+'
+
+test_expect_success 'checkout -b does not make reflog when core.logAllRefUpdates = false' '
+	git checkout main &&
+	git config core.logAllRefUpdates false &&
+	git checkout -b beta &&
+	test_must_fail git rev-parse --verify beta@{0}
+'
+
+test_expect_success 'checkout -b with -l makes reflog when core.logAllRefUpdates = false' '
+	git checkout main &&
+	git checkout -lb gamma &&
+	git config --unset core.logAllRefUpdates &&
+	git rev-parse --verify gamma@{0}
+'
+
+test_expect_success 'avoid ambiguous track and advise' '
+	git config branch.autosetupmerge true &&
+	git config remote.ambi1.url lalala &&
+	git config remote.ambi1.fetch refs/heads/lalala:refs/heads/main &&
+	git config remote.ambi2.url lilili &&
+	git config remote.ambi2.fetch refs/heads/lilili:refs/heads/main &&
+	cat <<-EOF >expected &&
+	fatal: not tracking: ambiguous information for ref '\''refs/heads/main'\''
+	hint: There are multiple remotes whose fetch refspecs map to the remote
+	hint: tracking ref '\''refs/heads/main'\'':
+	hint:   ambi1
+	hint:   ambi2
+	hint: ''
+	hint: This is typically a configuration error.
+	hint: ''
+	hint: To support setting up tracking branches, ensure that
+	hint: different remotes'\'' fetch refspecs map into different
+	hint: tracking namespaces.
+	EOF
+	test_must_fail git branch all1 main 2>actual &&
+	test_cmp expected actual &&
+	test -z "$(git config branch.all1.merge)"
+'
+
+test_expect_success 'autosetuprebase local on a tracked local branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase local &&
+	(git show-ref -q refs/remotes/local/o || git fetch local) &&
+	git branch mybase &&
+	git branch --track myr1 mybase &&
+	test "$(git config branch.myr1.remote)" = . &&
+	test "$(git config branch.myr1.merge)" = refs/heads/mybase &&
+	test "$(git config branch.myr1.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase always on a tracked local branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase always &&
+	(git show-ref -q refs/remotes/local/o || git fetch local) &&
+	git branch mybase2 &&
+	git branch --track myr2 mybase &&
+	test "$(git config branch.myr2.remote)" = . &&
+	test "$(git config branch.myr2.merge)" = refs/heads/mybase &&
+	test "$(git config branch.myr2.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase remote on a tracked local branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase remote &&
+	(git show-ref -q refs/remotes/local/o || git fetch local) &&
+	git branch mybase3 &&
+	git branch --track myr3 mybase2 &&
+	test "$(git config branch.myr3.remote)" = . &&
+	test "$(git config branch.myr3.merge)" = refs/heads/mybase2 &&
+	! test "$(git config branch.myr3.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase never on a tracked local branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase never &&
+	(git show-ref -q refs/remotes/local/o || git fetch local) &&
+	git branch mybase4 &&
+	git branch --track myr4 mybase2 &&
+	test "$(git config branch.myr4.remote)" = . &&
+	test "$(git config branch.myr4.merge)" = refs/heads/mybase2 &&
+	! test "$(git config branch.myr4.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase local on a tracked remote branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase local &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --track myr5 local/main &&
+	test "$(git config branch.myr5.remote)" = local &&
+	test "$(git config branch.myr5.merge)" = refs/heads/main &&
+	! test "$(git config branch.myr5.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase never on a tracked remote branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase never &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --track myr6 local/main &&
+	test "$(git config branch.myr6.remote)" = local &&
+	test "$(git config branch.myr6.merge)" = refs/heads/main &&
+	! test "$(git config branch.myr6.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase remote on a tracked remote branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase remote &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --track myr7 local/main &&
+	test "$(git config branch.myr7.remote)" = local &&
+	test "$(git config branch.myr7.merge)" = refs/heads/main &&
+	test "$(git config branch.myr7.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase always on a tracked remote branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	git config branch.autosetuprebase remote &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --track myr8 local/main &&
+	test "$(git config branch.myr8.remote)" = local &&
+	test "$(git config branch.myr8.merge)" = refs/heads/main &&
+	test "$(git config branch.myr8.rebase)" = true
+'
+
+test_expect_success 'autosetuprebase unconfigured on a tracked remote branch' '
+	git config --unset branch.autosetuprebase &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --track myr9 local/main &&
+	test "$(git config branch.myr9.remote)" = local &&
+	test "$(git config branch.myr9.merge)" = refs/heads/main &&
+	test "z$(git config branch.myr9.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase unconfigured on a tracked local branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/o || git fetch local) &&
+	git branch mybase10 &&
+	git branch --track myr10 mybase2 &&
+	test "$(git config branch.myr10.remote)" = . &&
+	test "$(git config branch.myr10.merge)" = refs/heads/mybase2 &&
+	test "z$(git config branch.myr10.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase unconfigured on untracked local branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr11 mybase2 &&
+	test "z$(git config branch.myr11.remote)" = z &&
+	test "z$(git config branch.myr11.merge)" = z &&
+	test "z$(git config branch.myr11.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase unconfigured on untracked remote branch' '
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr12 local/main &&
+	test "z$(git config branch.myr12.remote)" = z &&
+	test "z$(git config branch.myr12.merge)" = z &&
+	test "z$(git config branch.myr12.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase never on an untracked local branch' '
+	git config branch.autosetuprebase never &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr13 mybase2 &&
+	test "z$(git config branch.myr13.remote)" = z &&
+	test "z$(git config branch.myr13.merge)" = z &&
+	test "z$(git config branch.myr13.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase local on an untracked local branch' '
+	git config branch.autosetuprebase local &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr14 mybase2 &&
+	test "z$(git config branch.myr14.remote)" = z &&
+	test "z$(git config branch.myr14.merge)" = z &&
+	test "z$(git config branch.myr14.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase remote on an untracked local branch' '
+	git config branch.autosetuprebase remote &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr15 mybase2 &&
+	test "z$(git config branch.myr15.remote)" = z &&
+	test "z$(git config branch.myr15.merge)" = z &&
+	test "z$(git config branch.myr15.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase always on an untracked local branch' '
+	git config branch.autosetuprebase always &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr16 mybase2 &&
+	test "z$(git config branch.myr16.remote)" = z &&
+	test "z$(git config branch.myr16.merge)" = z &&
+	test "z$(git config branch.myr16.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase never on an untracked remote branch' '
+	git config branch.autosetuprebase never &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr17 local/main &&
+	test "z$(git config branch.myr17.remote)" = z &&
+	test "z$(git config branch.myr17.merge)" = z &&
+	test "z$(git config branch.myr17.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase local on an untracked remote branch' '
+	git config branch.autosetuprebase local &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr18 local/main &&
+	test "z$(git config branch.myr18.remote)" = z &&
+	test "z$(git config branch.myr18.merge)" = z &&
+	test "z$(git config branch.myr18.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase remote on an untracked remote branch' '
+	git config branch.autosetuprebase remote &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr19 local/main &&
+	test "z$(git config branch.myr19.remote)" = z &&
+	test "z$(git config branch.myr19.merge)" = z &&
+	test "z$(git config branch.myr19.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase always on an untracked remote branch' '
+	git config branch.autosetuprebase always &&
+	git config remote.local.url . &&
+	git config remote.local.fetch refs/heads/*:refs/remotes/local/* &&
+	(git show-ref -q refs/remotes/local/main || git fetch local) &&
+	git branch --no-track myr20 local/main &&
+	test "z$(git config branch.myr20.remote)" = z &&
+	test "z$(git config branch.myr20.merge)" = z &&
+	test "z$(git config branch.myr20.rebase)" = z
+'
+
+test_expect_success 'autosetuprebase always on detached HEAD' '
+	git config branch.autosetupmerge always &&
+	test_when_finished git checkout main &&
+	git checkout HEAD^0 &&
+	git branch my11 &&
+	test -z "$(git config branch.my11.remote)" &&
+	test -z "$(git config branch.my11.merge)"
+'
+
+test_expect_success 'detect misconfigured autosetuprebase (bad value)' '
+	git config branch.autosetuprebase garbage &&
+	test_must_fail git branch
+'
+
+test_expect_success 'detect misconfigured autosetuprebase (no value)' '
+	git config --unset branch.autosetuprebase &&
+	echo "[branch] autosetuprebase" >>.git/config &&
+	test_must_fail git branch &&
+	git config --unset branch.autosetuprebase
+'
+
+test_expect_success 'attempt to delete a branch without base and unmerged to HEAD' '
+	git checkout my9 &&
+	git config --unset branch.my8.merge &&
+	test_must_fail git branch -d my8
+'
+
+test_expect_success 'attempt to delete a branch merged to its base' '
+	# we are on my9 which is the initial commit; traditionally
+	# we would not have allowed deleting my8 that is not merged
+	# to my9, but it is set to track main that already has my8
+	git config branch.my8.merge refs/heads/main &&
+	git branch -d my8
+'
+
+test_expect_success 'attempt to delete a branch merged to its base' '
+	git checkout main &&
+	echo Third >>A &&
+	git commit -m "Third commit" A &&
+	git branch -t my10 my9 &&
+	git branch -f my10 HEAD^ &&
+	# we are on main which is at the third commit, and my10
+	# is behind us, so traditionally we would have allowed deleting
+	# it; but my10 is set to track my9 that is further behind.
+	test_must_fail git branch -d my10
+'
+
+test_expect_success 'branch --delete --force removes dangling branch' '
+	git checkout main &&
+	test_commit unstable &&
+	hash=$(git rev-parse HEAD) &&
+	objpath=$(echo $hash | sed -e "s|^..|.git/objects/&/|") &&
+	git branch --no-track dangling &&
+	mv $objpath $objpath.x &&
+	test_when_finished "mv $objpath.x $objpath" &&
+	git branch --delete --force dangling &&
+	git for-each-ref refs/heads/dangling >actual &&
+	test_must_be_empty actual
+'
+
+test_expect_success 'use --edit-description' '
+	EDITOR=: git branch --edit-description &&
+	test_expect_code 1 git config branch.main.description &&
+
+	write_script editor <<-\EOF &&
+		echo "New contents" >"$1"
+	EOF
+	EDITOR=./editor git branch --edit-description &&
+		write_script editor <<-\EOF &&
+		git stripspace -s <"$1" >"EDITOR_OUTPUT"
+	EOF
+	EDITOR=./editor git branch --edit-description &&
+	echo "New contents" >expect &&
+	test_cmp expect EDITOR_OUTPUT
+'
+
+test_expect_success 'detect typo in branch name when using --edit-description' '
+	write_script editor <<-\EOF &&
+		echo "New contents" >"$1"
+	EOF
+	test_must_fail env EDITOR=./editor git branch --edit-description no-such-branch
+'
+
+test_expect_success 'refuse --edit-description on unborn branch for now' '
+	test_when_finished "git checkout main" &&
+	write_script editor <<-\EOF &&
+		echo "New contents" >"$1"
+	EOF
+	git checkout --orphan unborn &&
+	test_must_fail env EDITOR=./editor git branch --edit-description
+'
+
+test_expect_success '--merged catches invalid object names' '
+	test_must_fail git branch --merged 0000000000000000000000000000000000000000
+'
+
+test_expect_success '--list during rebase' '
+	test_when_finished "reset_rebase" &&
+	git checkout main &&
+	FAKE_LINES="1 edit 2" &&
+	export FAKE_LINES &&
+	set_fake_editor &&
+	git rebase -i HEAD~2 &&
+	git branch --list >actual &&
+	test_grep "rebasing main" actual
+'
+
+test_expect_success '--list during rebase from detached HEAD' '
+	test_when_finished "reset_rebase && git checkout main" &&
+	git checkout main^0 &&
+	oid=$(git rev-parse --short HEAD) &&
+	FAKE_LINES="1 edit 2" &&
+	export FAKE_LINES &&
+	set_fake_editor &&
+	git rebase -i HEAD~2 &&
+	git branch --list >actual &&
+	test_grep "rebasing detached HEAD $oid" actual
+'
+
+test_expect_success 'tracking with unexpected .fetch refspec' '
+	rm -rf a b c d &&
+	git init -b main a &&
+	(
+		cd a &&
+		test_commit a
+	) &&
+	git init -b main b &&
+	(
+		cd b &&
+		test_commit b
+	) &&
+	git init -b main c &&
+	(
+		cd c &&
+		test_commit c &&
+		git remote add a ../a &&
+		git remote add b ../b &&
+		git fetch --all
+	) &&
+	git init -b main d &&
+	(
+		cd d &&
+		git remote add c ../c &&
+		git config remote.c.fetch "+refs/remotes/*:refs/remotes/*" &&
+		git fetch c &&
+		git branch --track local/a/main remotes/a/main &&
+		test "$(git config branch.local/a/main.remote)" = "c" &&
+		test "$(git config branch.local/a/main.merge)" = "refs/remotes/a/main" &&
+		git rev-parse --verify a >expect &&
+		git rev-parse --verify local/a/main >actual &&
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'configured committerdate sort' '
+	git init -b main sort &&
+	(
+		cd sort &&
+		git config branch.sort committerdate &&
+		test_commit initial &&
+		git checkout -b a &&
+		test_commit a &&
+		git checkout -b c &&
+		test_commit c &&
+		git checkout -b b &&
+		test_commit b &&
+		git branch >actual &&
+		cat >expect <<-\EOF &&
+		  main
+		  a
+		  c
+		* b
+		EOF
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'option override configured sort' '
+	(
+		cd sort &&
+		git config branch.sort committerdate &&
+		git branch --sort=refname >actual &&
+		cat >expect <<-\EOF &&
+		  a
+		* b
+		  c
+		  main
+		EOF
+		test_cmp expect actual
+	)
+'
+
+test_expect_success 'invalid sort parameter in configuration' '
+	(
+		cd sort &&
+		git config branch.sort "v:notvalid" &&
+
+		# this works in the "listing" mode, so bad sort key
+		# is a dying offence.
+		test_must_fail git branch &&
+
+		# these do not need to use sorting, and should all
+		# succeed
+		git branch newone main &&
+		git branch -c newone newerone &&
+		git branch -m newone newestone &&
+		git branch -d newerone newestone
+	)
+'
+
+test_expect_success 'tracking info copied with --track=inherit' '
+	git branch --track=inherit foo2 my1 &&
+	test_cmp_config local branch.foo2.remote &&
+	test_cmp_config refs/heads/main branch.foo2.merge
+'
+
+test_expect_success 'tracking info copied with autoSetupMerge=inherit' '
+	test_unconfig branch.autoSetupMerge &&
+	# default config does not copy tracking info
+	git branch foo-no-inherit my1 &&
+	test_cmp_config "" --default "" branch.foo-no-inherit.remote &&
+	test_cmp_config "" --default "" branch.foo-no-inherit.merge &&
+	# with autoSetupMerge=inherit, we copy tracking info from my1
+	test_config branch.autoSetupMerge inherit &&
+	git branch foo3 my1 &&
+	test_cmp_config local branch.foo3.remote &&
+	test_cmp_config refs/heads/main branch.foo3.merge &&
+	# no tracking info to inherit from main
+	git branch main2 main &&
+	test_cmp_config "" --default "" branch.main2.remote &&
+	test_cmp_config "" --default "" branch.main2.merge
+'
+
+test_expect_success '--track overrides branch.autoSetupMerge' '
+	test_config branch.autoSetupMerge inherit &&
+	git branch --track=direct foo4 my1 &&
+	test_cmp_config . branch.foo4.remote &&
+	test_cmp_config refs/heads/my1 branch.foo4.merge &&
+	git branch --no-track foo5 my1 &&
+	test_cmp_config "" --default "" branch.foo5.remote &&
+	test_cmp_config "" --default "" branch.foo5.merge
+'
+
+test_done