#!/bin/sh
test_description='checkout <branch>
Ensures that checkout on an unborn branch does what the user expects'
TEST_PASSES_SANITIZE_LEAK=true
. ./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
}
status_uno_is_clean () {
git status -uno --porcelain >status.actual &&
test_must_be_empty status.actual
}
test_expect_success 'setup' '
test_commit my_main &&
git init repo_a &&
(
cd repo_a &&
test_commit a_main &&
git checkout -b foo &&
test_commit a_foo &&
git checkout -b bar &&
test_commit a_bar &&
git checkout -b ambiguous_branch_and_file &&
test_commit a_ambiguous_branch_and_file
) &&
git init repo_b &&
(
cd repo_b &&
test_commit b_main &&
git checkout -b foo &&
test_commit b_foo &&
git checkout -b baz &&
test_commit b_baz &&
git checkout -b ambiguous_branch_and_file &&
test_commit b_ambiguous_branch_and_file
) &&
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 main &&
test_might_fail git branch -D xyzzy &&
test_must_fail git checkout xyzzy &&
status_uno_is_clean &&
test_must_fail git rev-parse --verify refs/heads/xyzzy &&
test_branch main
'
test_expect_success 'checkout of branch from multiple remotes fails #1' '
git checkout -B main &&
test_might_fail git branch -D foo &&
test_must_fail git checkout foo &&
status_uno_is_clean &&
test_must_fail git rev-parse --verify refs/heads/foo &&
test_branch main
'
test_expect_success 'when arg matches multiple remotes, do not fallback to interpreting as pathspec' '
# create a file with name matching remote branch name
git checkout -b t_ambiguous_branch_and_file &&
>ambiguous_branch_and_file &&
git add ambiguous_branch_and_file &&
git commit -m "ambiguous_branch_and_file" &&
# modify file to verify that it will not be touched by checkout
test_when_finished "git checkout -- ambiguous_branch_and_file" &&
echo "file contents" >ambiguous_branch_and_file &&
cp ambiguous_branch_and_file expect &&
test_must_fail git checkout ambiguous_branch_and_file 2>err &&
test_grep "matched multiple (2) remote tracking branches" err &&
# file must not be altered
test_cmp expect ambiguous_branch_and_file
'
test_expect_success 'checkout of branch from multiple remotes fails with advice' '
git checkout -B main &&
test_might_fail git branch -D foo &&
test_must_fail git checkout foo 2>stderr &&
test_branch main &&
status_uno_is_clean &&
test_grep "^hint: " stderr &&
test_must_fail git -c advice.checkoutAmbiguousRemoteBranchName=false \
checkout foo 2>stderr &&
test_branch main &&
status_uno_is_clean &&
test_grep ! "^hint: " stderr
'
test_expect_success 'checkout -p with multiple remotes does not print advice' '
git checkout -B main &&
test_might_fail git branch -D foo &&
git checkout -p foo 2>stderr &&
test_grep ! "^hint: " stderr &&
status_uno_is_clean
'
test_expect_success 'checkout of branch from multiple remotes succeeds with checkout.defaultRemote #1' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D foo &&
git -c checkout.defaultRemote=repo_a checkout foo &&
status_uno_is_clean &&
test_branch foo &&
test_cmp_rev remotes/repo_a/foo HEAD &&
test_branch_upstream foo repo_a foo
'
test_expect_success 'checkout of branch from a single remote succeeds #1' '
git checkout -B main &&
test_might_fail git branch -D bar &&
git checkout bar &&
status_uno_is_clean &&
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 main &&
test_might_fail git branch -D baz &&
git checkout baz &&
status_uno_is_clean &&
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 main &&
status_uno_is_clean &&
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 main
'
test_expect_success 'checkout.guess = false suppresses branch auto-vivification' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D bar &&
test_config checkout.guess false &&
test_must_fail git checkout bar &&
test_must_fail git rev-parse --verify refs/heads/bar &&
test_branch main
'
test_expect_success 'setup more remotes with unconventional refspecs' '
git checkout -B main &&
status_uno_is_clean &&
git init repo_c &&
(
cd repo_c &&
test_commit c_main &&
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_main &&
git checkout -b baz &&
test_commit d_baz &&
git checkout -b eggs &&
test_commit d_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_success 'checkout of branch from multiple remotes fails #2' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D bar &&
test_must_fail git checkout bar &&
status_uno_is_clean &&
test_must_fail git rev-parse --verify refs/heads/bar &&
test_branch main
'
test_expect_success 'checkout of branch from multiple remotes fails #3' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D baz &&
test_must_fail git checkout baz &&
status_uno_is_clean &&
test_must_fail git rev-parse --verify refs/heads/baz &&
test_branch main
'
test_expect_success 'checkout of branch from a single remote succeeds #3' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D spam &&
git checkout spam &&
status_uno_is_clean &&
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_success 'checkout of branch from a single remote succeeds #4' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D eggs &&
git checkout eggs &&
status_uno_is_clean &&
test_branch eggs &&
test_cmp_rev refs/repo_d/eggs HEAD &&
test_branch_upstream eggs repo_d eggs
'
test_expect_success 'checkout of branch with a file having the same name fails' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D spam &&
>spam &&
test_must_fail git checkout spam &&
status_uno_is_clean &&
test_must_fail git rev-parse --verify refs/heads/spam &&
test_branch main
'
test_expect_success 'checkout of branch with a file in subdir having the same name fails' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D spam &&
>spam &&
mkdir sub &&
mv spam sub/spam &&
test_must_fail git -C sub checkout spam &&
status_uno_is_clean &&
test_must_fail git rev-parse --verify refs/heads/spam &&
test_branch main
'
test_expect_success 'checkout <branch> -- succeeds, even if a file with the same name exists' '
git checkout -B main &&
status_uno_is_clean &&
test_might_fail git branch -D spam &&
>spam &&
git checkout spam -- &&
status_uno_is_clean &&
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_success 'loosely defined local base branch is reported correctly' '
git checkout main &&
status_uno_is_clean &&
git branch strict &&
git branch loose &&
git commit --allow-empty -m "a bit more" &&
test_config branch.strict.remote . &&
test_config branch.loose.remote . &&
test_config branch.strict.merge refs/heads/main &&
test_config branch.loose.merge main &&
git checkout strict >expect.raw 2>&1 &&
sed -e "s/strict/BRANCHNAME/g" <expect.raw >expect &&
status_uno_is_clean &&
git checkout loose >actual.raw 2>&1 &&
sed -e "s/loose/BRANCHNAME/g" <actual.raw >actual &&
status_uno_is_clean &&
grep BRANCHNAME actual &&
test_cmp expect actual
'
test_expect_success 'reject when arg could be part of dwim branch' '
git remote add foo file://non-existent-place &&
git update-ref refs/remotes/foo/dwim-arg HEAD &&
echo foo >dwim-arg &&
git add dwim-arg &&
echo bar >dwim-arg &&
test_must_fail git checkout dwim-arg &&
test_must_fail git rev-parse refs/heads/dwim-arg -- &&
grep bar dwim-arg
'
test_expect_success 'disambiguate dwim branch and checkout path (1)' '
git update-ref refs/remotes/foo/dwim-arg1 HEAD &&
echo foo >dwim-arg1 &&
git add dwim-arg1 &&
echo bar >dwim-arg1 &&
git checkout -- dwim-arg1 &&
test_must_fail git rev-parse refs/heads/dwim-arg1 -- &&
grep foo dwim-arg1
'
test_expect_success 'disambiguate dwim branch and checkout path (2)' '
git update-ref refs/remotes/foo/dwim-arg2 HEAD &&
echo foo >dwim-arg2 &&
git add dwim-arg2 &&
echo bar >dwim-arg2 &&
git checkout dwim-arg2 -- &&
git rev-parse refs/heads/dwim-arg2 -- &&
grep bar dwim-arg2
'
test_done
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