1 files changed, 149 insertions, 0 deletions
diff --git a/t/t2060-switch.sh b/t/t2060-switch.sh
new file mode 100755
index 0000000..5a7caf9
--- /dev/null
+++ b/t/t2060-switch.sh
@@ -0,0 +1,149 @@
+#!/bin/sh
+
+test_description='switch basic functionality'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+	test_commit first &&
+	git branch first-branch &&
+	test_commit second &&
+	test_commit third &&
+	git remote add origin nohost:/nopath &&
+	git update-ref refs/remotes/origin/foo first-branch
+'
+
+test_expect_success 'switch branch no arguments' '
+	test_must_fail git switch
+'
+
+test_expect_success 'switch branch' '
+	git switch first-branch &&
+	test_path_is_missing second.t
+'
+
+test_expect_success 'switch and detach' '
+	test_when_finished git switch main &&
+	test_must_fail git switch main^{commit} &&
+	git switch --detach main^{commit} &&
+	test_must_fail git symbolic-ref HEAD
+'
+
+test_expect_success 'suggestion to detach' '
+	test_must_fail git switch main^{commit} 2>stderr &&
+	grep "try again with the --detach option" stderr
+'
+
+test_expect_success 'suggestion to detach is suppressed with advice.suggestDetachingHead=false' '
+	test_config advice.suggestDetachingHead false &&
+	test_must_fail git switch main^{commit} 2>stderr &&
+	! grep "try again with the --detach option" stderr
+'
+
+test_expect_success 'switch and detach current branch' '
+	test_when_finished git switch main &&
+	git switch main &&
+	git switch --detach &&
+	test_must_fail git symbolic-ref HEAD
+'
+
+test_expect_success 'switch and create branch' '
+	test_when_finished git switch main &&
+	git switch -c temp main^ &&
+	test_cmp_rev main^ refs/heads/temp &&
+	echo refs/heads/temp >expected-branch &&
+	git symbolic-ref HEAD >actual-branch &&
+	test_cmp expected-branch actual-branch
+'
+
+test_expect_success 'force create branch from HEAD' '
+	test_when_finished git switch main &&
+	git switch --detach main &&
+	test_must_fail git switch -c temp &&
+	git switch -C temp &&
+	test_cmp_rev main refs/heads/temp &&
+	echo refs/heads/temp >expected-branch &&
+	git symbolic-ref HEAD >actual-branch &&
+	test_cmp expected-branch actual-branch
+'
+
+test_expect_success 'new orphan branch from empty' '
+	test_when_finished git switch main &&
+	test_must_fail git switch --orphan new-orphan HEAD &&
+	git switch --orphan new-orphan &&
+	test_commit orphan &&
+	git cat-file commit refs/heads/new-orphan >commit &&
+	! grep ^parent commit &&
+	git ls-files >tracked-files &&
+	echo orphan.t >expected &&
+	test_cmp expected tracked-files
+'
+
+test_expect_success 'orphan branch works with --discard-changes' '
+	test_when_finished git switch main &&
+	echo foo >foo.txt &&
+	git switch --discard-changes --orphan new-orphan2 &&
+	git ls-files >tracked-files &&
+	test_must_be_empty tracked-files
+'
+
+test_expect_success 'switching ignores file of same branch name' '
+	test_when_finished git switch main &&
+	: >first-branch &&
+	git switch first-branch &&
+	echo refs/heads/first-branch >expected &&
+	git symbolic-ref HEAD >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'guess and create branch' '
+	test_when_finished git switch main &&
+	test_must_fail git switch --no-guess foo &&
+	test_config checkout.guess false &&
+	test_must_fail git switch foo &&
+	test_config checkout.guess true &&
+	git switch foo &&
+	echo refs/heads/foo >expected &&
+	git symbolic-ref HEAD >actual &&
+	test_cmp expected actual
+'
+
+test_expect_success 'not switching when something is in progress' '
+	test_when_finished rm -f .git/MERGE_HEAD &&
+	# fake a merge-in-progress
+	cp .git/HEAD .git/MERGE_HEAD &&
+	test_must_fail git switch -d @^
+'
+
+test_expect_success 'tracking info copied with autoSetupMerge=inherit' '
+	# default config does not copy tracking info
+	git switch -c foo-no-inherit foo &&
+	test_cmp_config "" --default "" branch.foo-no-inherit.remote &&
+	test_cmp_config "" --default "" branch.foo-no-inherit.merge &&
+	# with --track=inherit, we copy tracking info from foo
+	git switch --track=inherit -c foo2 foo &&
+	test_cmp_config origin branch.foo2.remote &&
+	test_cmp_config refs/heads/foo branch.foo2.merge &&
+	# with autoSetupMerge=inherit, we do the same
+	test_config branch.autoSetupMerge inherit &&
+	git switch -c foo3 foo &&
+	test_cmp_config origin branch.foo3.remote &&
+	test_cmp_config refs/heads/foo branch.foo3.merge &&
+	# with --track, we override autoSetupMerge
+	git switch --track -c foo4 foo &&
+	test_cmp_config . branch.foo4.remote &&
+	test_cmp_config refs/heads/foo branch.foo4.merge &&
+	# and --track=direct does as well
+	git switch --track=direct -c foo5 foo &&
+	test_cmp_config . branch.foo5.remote &&
+	test_cmp_config refs/heads/foo branch.foo5.merge &&
+	# no tracking info to inherit from main
+	git switch -c main2 main &&
+	test_cmp_config "" --default "" branch.main2.remote &&
+	test_cmp_config "" --default "" branch.main2.merge
+'
+
+test_done