git/t/t2024-checkout-dwim.sh
Johan Herland ec2764ee8f t2024: Show failure to use refspec when DWIMming remote branch names
When using "git checkout foo" to DWIM the creation of local "foo" from some
existing upstream "foo", we assume conventional refspecs as created by "git
clone" or "git remote add", and fail to work correctly if the current
refspecs do not follow the conventional "refs/remotes/$remote/*" pattern.

Improved-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-21 15:14:40 -07:00

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#!/bin/sh
test_description='checkout <branch>
Ensures that checkout on an unborn branch does what the user expects'
. ./test-lib.sh
# Is the current branch "refs/heads/$1"?
test_branch () {
printf "%s\n" "refs/heads/$1" >expect.HEAD &&
git symbolic-ref HEAD >actual.HEAD &&
test_cmp expect.HEAD actual.HEAD
}
# Is branch "refs/heads/$1" set to pull from "$2/$3"?
test_branch_upstream () {
printf "%s\n" "$2" "refs/heads/$3" >expect.upstream &&
{
git config "branch.$1.remote" &&
git config "branch.$1.merge"
} >actual.upstream &&
test_cmp expect.upstream actual.upstream
}
test_expect_success 'setup' '
test_commit my_master &&
git init repo_a &&
(
cd repo_a &&
test_commit a_master &&
git checkout -b foo &&
test_commit a_foo &&
git checkout -b bar &&
test_commit a_bar
) &&
git init repo_b &&
(
cd repo_b &&
test_commit b_master &&
git checkout -b foo &&
test_commit b_foo &&
git checkout -b baz &&
test_commit b_baz
) &&
git remote add repo_a repo_a &&
git remote add repo_b repo_b &&
git config remote.repo_b.fetch \
"+refs/heads/*:refs/remotes/other_b/*" &&
git fetch --all
'
test_expect_success 'checkout of non-existing branch fails' '
git checkout -B master &&
test_might_fail git branch -D xyzzy &&
test_must_fail git checkout xyzzy &&
test_must_fail git rev-parse --verify refs/heads/xyzzy &&
test_branch master
'
test_expect_success 'checkout of branch from multiple remotes fails #1' '
git checkout -B master &&
test_might_fail git branch -D foo &&
test_must_fail git checkout foo &&
test_must_fail git rev-parse --verify refs/heads/foo &&
test_branch master
'
test_expect_success 'checkout of branch from a single remote succeeds #1' '
git checkout -B master &&
test_might_fail git branch -D bar &&
git checkout bar &&
test_branch bar &&
test_cmp_rev remotes/repo_a/bar HEAD &&
test_branch_upstream bar repo_a bar
'
test_expect_success 'checkout of branch from a single remote succeeds #2' '
git checkout -B master &&
test_might_fail git branch -D baz &&
git checkout baz &&
test_branch baz &&
test_cmp_rev remotes/other_b/baz HEAD &&
test_branch_upstream baz repo_b baz
'
test_expect_success '--no-guess suppresses branch auto-vivification' '
git checkout -B master &&
test_might_fail git branch -D bar &&
test_must_fail git checkout --no-guess bar &&
test_must_fail git rev-parse --verify refs/heads/bar &&
test_branch master
'
test_expect_success 'setup more remotes with unconventional refspecs' '
git checkout -B master &&
git init repo_c &&
(
cd repo_c &&
test_commit c_master &&
git checkout -b bar &&
test_commit c_bar
git checkout -b spam &&
test_commit c_spam
) &&
git init repo_d &&
(
cd repo_d &&
test_commit d_master &&
git checkout -b baz &&
test_commit f_baz
git checkout -b eggs &&
test_commit c_eggs
) &&
git remote add repo_c repo_c &&
git config remote.repo_c.fetch \
"+refs/heads/*:refs/remotes/extra_dir/repo_c/extra_dir/*" &&
git remote add repo_d repo_d &&
git config remote.repo_d.fetch \
"+refs/heads/*:refs/repo_d/*" &&
git fetch --all
'
test_expect_failure 'checkout of branch from multiple remotes fails #2' '
git checkout -B master &&
test_might_fail git branch -D bar &&
test_must_fail git checkout bar &&
test_must_fail git rev-parse --verify refs/heads/bar &&
test_branch master
'
test_expect_failure 'checkout of branch from multiple remotes fails #3' '
git checkout -B master &&
test_might_fail git branch -D baz &&
test_must_fail git checkout baz &&
test_must_fail git rev-parse --verify refs/heads/baz &&
test_branch master
'
test_expect_failure 'checkout of branch from a single remote succeeds #3' '
git checkout -B master &&
test_might_fail git branch -D spam &&
git checkout spam &&
test_branch spam &&
test_cmp_rev refs/remotes/extra_dir/repo_c/extra_dir/spam HEAD &&
test_branch_upstream spam repo_c spam
'
test_expect_failure 'checkout of branch from a single remote succeeds #4' '
git checkout -B master &&
test_might_fail git branch -D eggs &&
git checkout eggs &&
test_branch eggs &&
test_cmp_rev refs/repo_d/eggs HEAD &&
test_branch_upstream eggs repo_d eggs
'
test_done