#!/bin/sh
#
# Copyright (c) 2006 Josh England
#

test_description='Test the post-checkout hook.'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME

. ./test-lib.sh

test_expect_success setup '
	mkdir -p .git/hooks &&
	write_script .git/hooks/post-checkout <<-\EOF &&
	echo "$@" >.git/post-checkout.args
	EOF
	test_commit one &&
	test_commit two &&
	test_commit rebase-on-me &&
	git reset --hard HEAD^ &&
	test_commit three
'

test_expect_success 'post-checkout receives the right arguments with HEAD unchanged ' '
	test_when_finished "rm -f .git/post-checkout.args" &&
	git checkout main &&
	read old new flag <.git/post-checkout.args &&
	test $old = $new && test $flag = 1
'

test_expect_success 'post-checkout args are correct with git checkout -b ' '
	test_when_finished "rm -f .git/post-checkout.args" &&
	git checkout -b new1 &&
	read old new flag <.git/post-checkout.args &&
	test $old = $new && test $flag = 1
'

test_expect_success 'post-checkout receives the right args with HEAD changed ' '
	test_when_finished "rm -f .git/post-checkout.args" &&
	git checkout two &&
	read old new flag <.git/post-checkout.args &&
	test $old != $new && test $flag = 1
'

test_expect_success 'post-checkout receives the right args when not switching branches ' '
	test_when_finished "rm -f .git/post-checkout.args" &&
	git checkout main -- three.t &&
	read old new flag <.git/post-checkout.args &&
	test $old = $new && test $flag = 0
'

test_expect_success 'post-checkout is triggered on rebase' '
	test_when_finished "rm -f .git/post-checkout.args" &&
	git checkout -b rebase-test main &&
	rm -f .git/post-checkout.args &&
	git rebase rebase-on-me &&
	read old new flag <.git/post-checkout.args &&
	test $old != $new && test $flag = 1
'

test_expect_success 'post-checkout is triggered on rebase with fast-forward' '
	test_when_finished "rm -f .git/post-checkout.args" &&
	git checkout -b ff-rebase-test rebase-on-me^ &&
	rm -f .git/post-checkout.args &&
	git rebase rebase-on-me &&
	read old new flag <.git/post-checkout.args &&
	test $old != $new && test $flag = 1
'

test_expect_success 'post-checkout hook is triggered by clone' '
	mkdir -p templates/hooks &&
	write_script templates/hooks/post-checkout <<-\EOF &&
	echo "$@" >"$GIT_DIR/post-checkout.args"
	EOF
	git clone --template=templates . clone3 &&
	test -f clone3/.git/post-checkout.args
'

test_done