#!/bin/sh

test_description='test git checkout --to'

. ./test-lib.sh

test_expect_success 'setup' '
        test_commit init
'

test_expect_success 'checkout --to not updating paths' '
        test_must_fail git checkout --to -- init.t
'

test_expect_success 'checkout --to an existing worktree' '
        mkdir existing &&
        test_must_fail git checkout --detach --to existing master
'

test_expect_success 'checkout --to a new worktree' '
        git rev-parse HEAD >expect &&
        git checkout --detach --to here master &&
        (
                cd here &&
                test_cmp ../init.t init.t &&
                test_must_fail git symbolic-ref HEAD &&
                git rev-parse HEAD >actual &&
                test_cmp ../expect actual &&
                git fsck
        )
'

test_expect_success 'checkout --to a new worktree from a subdir' '
        (
                mkdir sub &&
                cd sub &&
                git checkout --detach --to here master &&
                cd here &&
                test_cmp ../../init.t init.t
        )
'

test_expect_success 'checkout --to from a linked checkout' '
        (
                cd here &&
                git checkout --detach --to nested-here master &&
                cd nested-here &&
                git fsck
        )
'

test_expect_success 'checkout --to a new worktree creating new branch' '
        git checkout --to there -b newmaster master &&
        (
                cd there &&
                test_cmp ../init.t init.t &&
                git symbolic-ref HEAD >actual &&
                echo refs/heads/newmaster >expect &&
                test_cmp expect actual &&
                git fsck
        )
'

test_expect_success 'die the same branch is already checked out' '
        (
                cd here &&
                test_must_fail git checkout newmaster
        )
'

test_expect_success 'not die on re-checking out current branch' '
        (
                cd there &&
                git checkout newmaster
        )
'

test_done