[thirdparty/git.git] / t / t3903-stash.sh

#!/bin/sh
#
# Copyright (c) 2007 Johannes E Schindelin
#

test_description='Test git stash'

GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME

. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-unique-files.sh

test_expect_success 'setup' '
        test_oid_cache <<-EOF
        export_base sha1:73c9bab443d1f88ac61aa533d2eeaaa15451239c
        export_base sha256:f210fa6346e3e2ce047bdb570426b17075980c1ac01fec8fc4b75bd3ab4bcfe4
        EOF
'

test_expect_success 'usage on cmd and subcommand invalid option' '
        test_expect_code 129 git stash --invalid-option 2>usage &&
        grep "or: git stash" usage &&

        test_expect_code 129 git stash push --invalid-option 2>usage &&
        ! grep "or: git stash" usage
'

test_expect_success 'usage on main command -h emits a summary of subcommands' '
        test_expect_code 129 git stash -h >usage &&
        grep -F "usage: git stash list" usage &&
        grep -F "or: git stash show" usage
'

test_expect_success 'usage for subcommands should emit subcommand usage' '
        test_expect_code 129 git stash push -h >usage &&
        grep -F "usage: git stash [push" usage
'

diff_cmp () {
        for i in "$1" "$2"
        do
                sed -e 's/^index 0000000\.\.[0-9a-f]*/index 0000000..1234567/' \
                -e 's/^index [0-9a-f]*\.\.[0-9a-f]*/index 1234567..89abcde/' \
                -e 's/^index [0-9a-f]*,[0-9a-f]*\.\.[0-9a-f]*/index 1234567,7654321..89abcde/' \
                "$i" >"$i.compare" || return 1
        done &&
        test_cmp "$1.compare" "$2.compare" &&
        rm -f "$1.compare" "$2.compare"
}

setup_stash() {
        echo 1 >file &&
        git add file &&
        echo unrelated >other-file &&
        git add other-file &&
        test_tick &&
        git commit -m initial &&
        echo 2 >file &&
        git add file &&
        echo 3 >file &&
        test_tick &&
        git stash &&
        git diff-files --quiet &&
        git diff-index --cached --quiet HEAD
}

test_expect_success 'stash some dirty working directory' '
        setup_stash
'

cat >expect <<EOF
diff --git a/file b/file
index 0cfbf08..00750ed 100644
--- a/file
+++ b/file
@@ -1 +1 @@
-2
+3
EOF

test_expect_success 'parents of stash' '
        test $(git rev-parse stash^) = $(git rev-parse HEAD) &&
        git diff stash^2..stash >output &&
        diff_cmp expect output
'

test_expect_success 'applying bogus stash does nothing' '
        test_must_fail git stash apply stash@{1} &&
        echo 1 >expect &&
        test_cmp expect file
'

test_expect_success 'apply does not need clean working directory' '
        echo 4 >other-file &&
        git stash apply &&
        echo 3 >expect &&
        test_cmp expect file
'

test_expect_success 'apply does not clobber working directory changes' '
        git reset --hard &&
        echo 4 >file &&
        test_must_fail git stash apply &&
        echo 4 >expect &&
        test_cmp expect file
'

test_expect_success 'apply stashed changes' '
        git reset --hard &&
        echo 5 >other-file &&
        git add other-file &&
        test_tick &&
        git commit -m other-file &&
        git stash apply &&
        test 3 = $(cat file) &&
        test 1 = $(git show :file) &&
        test 1 = $(git show HEAD:file)
'

test_expect_success 'apply stashed changes (including index)' '
        git reset --hard HEAD^ &&
        echo 6 >other-file &&
        git add other-file &&
        test_tick &&
        git commit -m other-file &&
        git stash apply --index &&
        test 3 = $(cat file) &&
        test 2 = $(git show :file) &&
        test 1 = $(git show HEAD:file)
'

test_expect_success 'unstashing in a subdirectory' '
        git reset --hard HEAD &&
        mkdir subdir &&
        (
                cd subdir &&
                git stash apply
        )
'

test_expect_success 'stash drop complains of extra options' '
        test_must_fail git stash drop --foo
'

test_expect_success 'drop top stash' '
        git reset --hard &&
        git stash list >expected &&
        echo 7 >file &&
        git stash &&
        git stash drop &&
        git stash list >actual &&
        test_cmp expected actual &&
        git stash apply &&
        test 3 = $(cat file) &&
        test 1 = $(git show :file) &&
        test 1 = $(git show HEAD:file)
'

test_expect_success 'drop middle stash' '
        git reset --hard &&
        echo 8 >file &&
        git stash &&
        echo 9 >file &&
        git stash &&
        git stash drop stash@{1} &&
        test 2 = $(git stash list | wc -l) &&
        git stash apply &&
        test 9 = $(cat file) &&
        test 1 = $(git show :file) &&
        test 1 = $(git show HEAD:file) &&
        git reset --hard &&
        git stash drop &&
        git stash apply &&
        test 3 = $(cat file) &&
        test 1 = $(git show :file) &&
        test 1 = $(git show HEAD:file)
'

test_expect_success 'drop middle stash by index' '
        git reset --hard &&
        echo 8 >file &&
        git stash &&
        echo 9 >file &&
        git stash &&
        git stash drop 1 &&
        test 2 = $(git stash list | wc -l) &&
        git stash apply &&
        test 9 = $(cat file) &&
        test 1 = $(git show :file) &&
        test 1 = $(git show HEAD:file) &&
        git reset --hard &&
        git stash drop &&
        git stash apply &&
        test 3 = $(cat file) &&
        test 1 = $(git show :file) &&
        test 1 = $(git show HEAD:file)
'

test_expect_success 'drop stash reflog updates refs/stash' '
        git reset --hard &&
        git rev-parse refs/stash >expect &&
        echo 9 >file &&
        git stash &&
        git stash drop stash@{0} &&
        git rev-parse refs/stash >actual &&
        test_cmp expect actual
'

test_expect_success 'drop stash reflog updates refs/stash with rewrite' '
        git init repo &&
        (
                cd repo &&
                setup_stash
        ) &&
        echo 9 >repo/file &&

        old_oid="$(git -C repo rev-parse stash@{0})" &&
        git -C repo stash &&
        new_oid="$(git -C repo rev-parse stash@{0})" &&

        cat >expect <<-EOF &&
        $new_oid
        $old_oid
        EOF
        git -C repo reflog show refs/stash --format=%H >actual &&
        test_cmp expect actual &&

        git -C repo stash drop stash@{1} &&
        git -C repo reflog show refs/stash --format=%H >actual &&
        cat >expect <<-EOF &&
        $new_oid
        EOF
        test_cmp expect actual
'

test_expect_success 'stash pop' '
        git reset --hard &&
        git stash pop &&
        test 3 = $(cat file) &&
        test 1 = $(git show :file) &&
        test 1 = $(git show HEAD:file) &&
        test 0 = $(git stash list | wc -l)
'

cat >expect <<EOF
diff --git a/file2 b/file2
new file mode 100644
index 0000000..1fe912c
--- /dev/null
+++ b/file2
@@ -0,0 +1 @@
+bar2
EOF

cat >expect1 <<EOF
diff --git a/file b/file
index 257cc56..5716ca5 100644
--- a/file
+++ b/file
@@ -1 +1 @@
-foo
+bar
EOF

cat >expect2 <<EOF
diff --git a/file b/file
index 7601807..5716ca5 100644
--- a/file
+++ b/file
@@ -1 +1 @@
-baz
+bar
diff --git a/file2 b/file2
new file mode 100644
index 0000000..1fe912c
--- /dev/null
+++ b/file2
@@ -0,0 +1 @@
+bar2
EOF

test_expect_success 'stash branch' '
        echo foo >file &&
        git commit file -m first &&
        echo bar >file &&
        echo bar2 >file2 &&
        git add file2 &&
        git stash &&
        echo baz >file &&
        git commit file -m second &&
        git stash branch stashbranch &&
        test refs/heads/stashbranch = $(git symbolic-ref HEAD) &&
        test $(git rev-parse HEAD) = $(git rev-parse main^) &&
        git diff --cached >output &&
        diff_cmp expect output &&
        git diff >output &&
        diff_cmp expect1 output &&
        git add file &&
        git commit -m alternate\ second &&
        git diff main..stashbranch >output &&
        diff_cmp output expect2 &&
        test 0 = $(git stash list | wc -l)
'

test_expect_success 'apply -q is quiet' '
        echo foo >file &&
        git stash &&
        git stash apply -q >output.out 2>&1 &&
        test_must_be_empty output.out
'

test_expect_success 'apply --index -q is quiet' '
        # Added file, deleted file, modified file all staged for commit
        echo foo >new-file &&
        echo test >file &&
        git add new-file file &&
        git rm other-file &&

        git stash &&
        git stash apply --index -q >output.out 2>&1 &&
        test_must_be_empty output.out
'

test_expect_success 'save -q is quiet' '
        git stash save --quiet >output.out 2>&1 &&
        test_must_be_empty output.out
'

test_expect_success 'pop -q works and is quiet' '
        git stash pop -q >output.out 2>&1 &&
        echo bar >expect &&
        git show :file >actual &&
        test_cmp expect actual &&
        test_must_be_empty output.out
'

test_expect_success 'pop -q --index works and is quiet' '
        echo foo >file &&
        git add file &&
        git stash save --quiet &&
        git stash pop -q --index >output.out 2>&1 &&
        git diff-files file2 >file2.diff &&
        test_must_be_empty file2.diff &&
        test foo = "$(git show :file)" &&
        test_must_be_empty output.out
'

test_expect_success 'drop -q is quiet' '
        git stash &&
        git stash drop -q >output.out 2>&1 &&
        test_must_be_empty output.out
'

test_expect_success 'stash push -q --staged refreshes the index' '
        git reset --hard &&
        echo test >file &&
        git add file &&
        git stash push -q --staged &&
        git diff-files >output.out &&
        test_must_be_empty output.out
'

test_expect_success 'stash apply -q --index refreshes the index' '
        echo test >other-file &&
        git add other-file &&
        echo another-change >other-file &&
        git diff-files >expect &&
        git stash &&

        git stash apply -q --index &&
        git diff-files >actual &&
        test_cmp expect actual
'

test_expect_success 'stash -k' '
        echo bar3 >file &&
        echo bar4 >file2 &&
        git add file2 &&
        git stash -k &&
        test bar,bar4 = $(cat file),$(cat file2)
'

test_expect_success 'stash --no-keep-index' '
        echo bar33 >file &&
        echo bar44 >file2 &&
        git add file2 &&
        git stash --no-keep-index &&
        test bar,bar2 = $(cat file),$(cat file2)
'

test_expect_success 'stash --staged' '
        echo bar3 >file &&
        echo bar4 >file2 &&
        git add file2 &&
        git stash --staged &&
        test bar3,bar2 = $(cat file),$(cat file2) &&
        git reset --hard &&
        git stash pop &&
        test bar,bar4 = $(cat file),$(cat file2)
'

test_expect_success 'stash --staged with binary file' '
        printf "\0" >file &&
        git add file &&
        git stash --staged &&
        git stash pop &&
        printf "\0" >expect &&
        test_cmp expect file
'

test_expect_success 'dont assume push with non-option args' '
        test_must_fail git stash -q drop 2>err &&
        test_grep -e "subcommand wasn'\''t specified; '\''push'\'' can'\''t be assumed due to unexpected token '\''drop'\''" err
'

test_expect_success 'stash --invalid-option' '
        echo bar5 >file &&
        echo bar6 >file2 &&
        git add file2 &&
        test_must_fail git stash --invalid-option &&
        test_must_fail git stash save --invalid-option &&
        test bar5,bar6 = $(cat file),$(cat file2)
'

test_expect_success 'stash an added file' '
        git reset --hard &&
        echo new >file3 &&
        git add file3 &&
        git stash save "added file" &&
        ! test -r file3 &&
        git stash apply &&
        test new = "$(cat file3)"
'

test_expect_success 'stash --intent-to-add file' '
        git reset --hard &&
        echo new >file4 &&
        git add --intent-to-add file4 &&
        test_when_finished "git rm -f file4" &&
        test_must_fail git stash
'

test_expect_success 'stash rm then recreate' '
        git reset --hard &&
        git rm file &&
        echo bar7 >file &&
        git stash save "rm then recreate" &&
        test bar = "$(cat file)" &&
        git stash apply &&
        test bar7 = "$(cat file)"
'

test_expect_success 'stash rm and ignore' '
        git reset --hard &&
        git rm file &&
        echo file >.gitignore &&
        git stash save "rm and ignore" &&
        test bar = "$(cat file)" &&
        test file = "$(cat .gitignore)" &&
        git stash apply &&
        ! test -r file &&
        test file = "$(cat .gitignore)"
'

test_expect_success 'stash rm and ignore (stage .gitignore)' '
        git reset --hard &&
        git rm file &&
        echo file >.gitignore &&
        git add .gitignore &&
        git stash save "rm and ignore (stage .gitignore)" &&
        test bar = "$(cat file)" &&
        ! test -r .gitignore &&
        git stash apply &&
        ! test -r file &&
        test file = "$(cat .gitignore)"
'

test_expect_success SYMLINKS 'stash file to symlink' '
        git reset --hard &&
        rm file &&
        ln -s file2 file &&
        git stash save "file to symlink" &&
        test_path_is_file_not_symlink file &&
        test bar = "$(cat file)" &&
        git stash apply &&
        test_path_is_symlink file &&
        test "$(test_readlink file)" = file2
'

test_expect_success SYMLINKS 'stash file to symlink (stage rm)' '
        git reset --hard &&
        git rm file &&
        ln -s file2 file &&
        git stash save "file to symlink (stage rm)" &&
        test_path_is_file_not_symlink file &&
        test bar = "$(cat file)" &&
        git stash apply &&
        test_path_is_symlink file &&
        test "$(test_readlink file)" = file2
'

test_expect_success SYMLINKS 'stash file to symlink (full stage)' '
        git reset --hard &&
        rm file &&
        ln -s file2 file &&
        git add file &&
        git stash save "file to symlink (full stage)" &&
        test_path_is_file_not_symlink file &&
        test bar = "$(cat file)" &&
        git stash apply &&
        test_path_is_symlink file &&
        test "$(test_readlink file)" = file2
'

# This test creates a commit with a symlink used for the following tests

test_expect_success 'stash symlink to file' '
        git reset --hard &&
        test_ln_s_add file filelink &&
        git commit -m "Add symlink" &&
        rm filelink &&
        cp file filelink &&
        git stash save "symlink to file"
'

test_expect_success SYMLINKS 'this must have re-created the symlink' '
        test -h filelink &&
        case "$(ls -l filelink)" in *" filelink -> file") :;; *) false;; esac
'

test_expect_success 'unstash must re-create the file' '
        git stash apply &&
        ! test -h filelink &&
        test bar = "$(cat file)"
'

test_expect_success 'stash symlink to file (stage rm)' '
        git reset --hard &&
        git rm filelink &&
        cp file filelink &&
        git stash save "symlink to file (stage rm)"
'

test_expect_success SYMLINKS 'this must have re-created the symlink' '
        test -h filelink &&
        case "$(ls -l filelink)" in *" filelink -> file") :;; *) false;; esac
'

test_expect_success 'unstash must re-create the file' '
        git stash apply &&
        ! test -h filelink &&
        test bar = "$(cat file)"
'

test_expect_success 'stash symlink to file (full stage)' '
        git reset --hard &&
        rm filelink &&
        cp file filelink &&
        git add filelink &&
        git stash save "symlink to file (full stage)"
'

test_expect_success SYMLINKS 'this must have re-created the symlink' '
        test -h filelink &&
        case "$(ls -l filelink)" in *" filelink -> file") :;; *) false;; esac
'

test_expect_success 'unstash must re-create the file' '
        git stash apply &&
        ! test -h filelink &&
        test bar = "$(cat file)"
'

test_expect_failure 'stash directory to file' '
        git reset --hard &&
        mkdir dir &&
        echo foo >dir/file &&
        git add dir/file &&
        git commit -m "Add file in dir" &&
        rm -fr dir &&
        echo bar >dir &&
        git stash save "directory to file" &&
        test_path_is_dir dir &&
        test foo = "$(cat dir/file)" &&
        test_must_fail git stash apply &&
        test bar = "$(cat dir)" &&
        git reset --soft HEAD^
'

test_expect_failure 'stash file to directory' '
        git reset --hard &&
        rm file &&
        mkdir file &&
        echo foo >file/file &&
        git stash save "file to directory" &&
        test_path_is_file file &&
        test bar = "$(cat file)" &&
        git stash apply &&
        test_path_is_file file/file &&
        test foo = "$(cat file/file)"
'

test_expect_success 'giving too many ref arguments does not modify files' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        echo foo >file2 &&
        git stash &&
        echo bar >file2 &&
        git stash &&
        test-tool chmtime =123456789 file2 &&
        for type in apply pop "branch stash-branch"
        do
                test_must_fail git stash $type stash@{0} stash@{1} 2>err &&
                test_grep "Too many revisions" err &&
                test 123456789 = $(test-tool chmtime -g file2) || return 1
        done
'

test_expect_success 'drop: too many arguments errors out (does nothing)' '
        git stash list >expect &&
        test_must_fail git stash drop stash@{0} stash@{1} 2>err &&
        test_grep "Too many revisions" err &&
        git stash list >actual &&
        test_cmp expect actual
'

test_expect_success 'show: too many arguments errors out (does nothing)' '
        test_must_fail git stash show stash@{0} stash@{1} 2>err 1>out &&
        test_grep "Too many revisions" err &&
        test_must_be_empty out
'

test_expect_success 'stash create - no changes' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        git stash create >actual &&
        test_must_be_empty actual
'

test_expect_success 'stash branch - no stashes on stack, stash-like argument' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        echo foo >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        git stash branch stash-branch ${STASH_ID} &&
        test_when_finished "git reset --hard HEAD && git checkout main &&
        git branch -D stash-branch" &&
        test $(git ls-files --modified | wc -l) -eq 1
'

test_expect_success 'stash branch - stashes on stack, stash-like argument' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        echo foo >>file &&
        git stash &&
        test_when_finished "git stash drop" &&
        echo bar >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        git stash branch stash-branch ${STASH_ID} &&
        test_when_finished "git reset --hard HEAD && git checkout main &&
        git branch -D stash-branch" &&
        test $(git ls-files --modified | wc -l) -eq 1
'

test_expect_success 'stash branch complains with no arguments' '
        test_must_fail git stash branch 2>err &&
        test_grep "No branch name specified" err
'

test_expect_success 'stash show format defaults to --stat' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        echo foo >>file &&
        git stash &&
        test_when_finished "git stash drop" &&
        echo bar >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        cat >expected <<-EOF &&
         file | 1 +
         1 file changed, 1 insertion(+)
        EOF
        git stash show ${STASH_ID} >actual &&
        test_cmp expected actual
'

test_expect_success 'stash show - stashes on stack, stash-like argument' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        echo foo >>file &&
        git stash &&
        test_when_finished "git stash drop" &&
        echo bar >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        echo "1 0       file" >expected &&
        git stash show --numstat ${STASH_ID} >actual &&
        test_cmp expected actual
'

test_expect_success 'stash show -p - stashes on stack, stash-like argument' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        echo foo >>file &&
        git stash &&
        test_when_finished "git stash drop" &&
        echo bar >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        cat >expected <<-EOF &&
        diff --git a/file b/file
        index 7601807..935fbd3 100644
        --- a/file
        +++ b/file
        @@ -1 +1,2 @@
         baz
        +bar
        EOF
        git stash show -p ${STASH_ID} >actual &&
        diff_cmp expected actual
'

test_expect_success 'stash show - no stashes on stack, stash-like argument' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        echo foo >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        echo "1 0       file" >expected &&
        git stash show --numstat ${STASH_ID} >actual &&
        test_cmp expected actual
'

test_expect_success 'stash show -p - no stashes on stack, stash-like argument' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD" &&
        git reset --hard &&
        echo foo >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        cat >expected <<-EOF &&
        diff --git a/file b/file
        index 7601807..71b52c4 100644
        --- a/file
        +++ b/file
        @@ -1 +1,2 @@
         baz
        +foo
        EOF
        git stash show -p ${STASH_ID} >actual &&
        diff_cmp expected actual
'

test_expect_success 'stash show --patience shows diff' '
        git reset --hard &&
        echo foo >>file &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        cat >expected <<-EOF &&
        diff --git a/file b/file
        index 7601807..71b52c4 100644
        --- a/file
        +++ b/file
        @@ -1 +1,2 @@
         baz
        +foo
        EOF
        git stash show --patience ${STASH_ID} >actual &&
        diff_cmp expected actual
'

test_expect_success 'drop: fail early if specified stash is not a stash ref' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD && git stash clear" &&
        git reset --hard &&
        echo foo >file &&
        git stash &&
        echo bar >file &&
        git stash &&
        test_must_fail git stash drop $(git rev-parse stash@{0}) &&
        git stash pop &&
        test bar = "$(cat file)" &&
        git reset --hard HEAD
'

test_expect_success 'pop: fail early if specified stash is not a stash ref' '
        git stash clear &&
        test_when_finished "git reset --hard HEAD && git stash clear" &&
        git reset --hard &&
        echo foo >file &&
        git stash &&
        echo bar >file &&
        git stash &&
        test_must_fail git stash pop $(git rev-parse stash@{0}) &&
        git stash pop &&
        test bar = "$(cat file)" &&
        git reset --hard HEAD
'

test_expect_success 'ref with non-existent reflog' '
        git stash clear &&
        echo bar5 >file &&
        echo bar6 >file2 &&
        git add file2 &&
        git stash &&
        test_must_fail git rev-parse --quiet --verify does-not-exist &&
        test_must_fail git stash drop does-not-exist &&
        test_must_fail git stash drop does-not-exist@{0} &&
        test_must_fail git stash pop does-not-exist &&
        test_must_fail git stash pop does-not-exist@{0} &&
        test_must_fail git stash apply does-not-exist &&
        test_must_fail git stash apply does-not-exist@{0} &&
        test_must_fail git stash show does-not-exist &&
        test_must_fail git stash show does-not-exist@{0} &&
        test_must_fail git stash branch tmp does-not-exist &&
        test_must_fail git stash branch tmp does-not-exist@{0} &&
        git stash drop
'

test_expect_success 'invalid ref of the form stash@{n}, n >= N' '
        git stash clear &&
        test_must_fail git stash drop stash@{0} &&
        echo bar5 >file &&
        echo bar6 >file2 &&
        git add file2 &&
        git stash &&
        test_must_fail git stash drop stash@{1} &&
        test_must_fail git stash pop stash@{1} &&
        test_must_fail git stash apply stash@{1} &&
        test_must_fail git stash show stash@{1} &&
        test_must_fail git stash branch tmp stash@{1} &&
        git stash drop
'

test_expect_success 'invalid ref of the form "n", n >= N' '
        git stash clear &&
        test_must_fail git stash drop 0 &&
        echo bar5 >file &&
        echo bar6 >file2 &&
        git add file2 &&
        git stash &&
        test_must_fail git stash drop 1 &&
        test_must_fail git stash pop 1 &&
        test_must_fail git stash apply 1 &&
        test_must_fail git stash show 1 &&
        test_must_fail git stash branch tmp 1 &&
        git stash drop
'

test_expect_success 'valid ref of the form "n", n < N' '
        git stash clear &&
        echo bar5 >file &&
        echo bar6 >file2 &&
        git add file2 &&
        git stash &&
        git stash show 0 &&
        git stash branch tmp 0 &&
        git checkout main &&
        git stash &&
        git stash apply 0 &&
        git reset --hard &&
        git stash pop 0 &&
        git stash &&
        git stash drop 0 &&
        test_must_fail git stash drop
'

test_expect_success 'branch: do not drop the stash if the branch exists' '
        git stash clear &&
        echo foo >file &&
        git add file &&
        git commit -m initial &&
        echo bar >file &&
        git stash &&
        test_must_fail git stash branch main stash@{0} &&
        git rev-parse stash@{0} --
'

test_expect_success 'branch: should not drop the stash if the apply fails' '
        git stash clear &&
        git reset HEAD~1 --hard &&
        echo foo >file &&
        git add file &&
        git commit -m initial &&
        echo bar >file &&
        git stash &&
        echo baz >file &&
        test_when_finished "git checkout main" &&
        test_must_fail git stash branch new_branch stash@{0} &&
        git rev-parse stash@{0} --
'

test_expect_success 'apply: show same status as git status (relative to ./)' '
        git stash clear &&
        echo 1 >subdir/subfile1 &&
        echo 2 >subdir/subfile2 &&
        git add subdir/subfile1 &&
        git commit -m subdir &&
        (
                cd subdir &&
                echo x >subfile1 &&
                echo x >../file &&
                git status >../expect &&
                git stash &&
                sane_unset GIT_MERGE_VERBOSITY &&
                git stash apply
        ) |
        sed -e 1d >actual && # drop "Saved..."
        test_cmp expect actual
'

cat >expect <<EOF
diff --git a/HEAD b/HEAD
new file mode 100644
index 0000000..fe0cbee
--- /dev/null
+++ b/HEAD
@@ -0,0 +1 @@
+file-not-a-ref
EOF

test_expect_success 'stash where working directory contains "HEAD" file' '
        git stash clear &&
        git reset --hard &&
        echo file-not-a-ref >HEAD &&
        git add HEAD &&
        test_tick &&
        git stash &&
        git diff-files --quiet &&
        git diff-index --cached --quiet HEAD &&
        test "$(git rev-parse stash^)" = "$(git rev-parse HEAD)" &&
        git diff stash^..stash >output &&
        diff_cmp expect output
'

test_expect_success 'store called with invalid commit' '
        test_must_fail git stash store foo
'

test_expect_success 'store called with non-stash commit' '
        test_must_fail git stash store HEAD
'

test_expect_success 'store updates stash ref and reflog' '
        git stash clear &&
        git reset --hard &&
        echo quux >bazzy &&
        git add bazzy &&
        STASH_ID=$(git stash create) &&
        git reset --hard &&
        test_path_is_missing bazzy &&
        git stash store -m quuxery $STASH_ID &&
        test $(git rev-parse stash) = $STASH_ID &&
        git reflog --format=%H stash| grep $STASH_ID &&
        git stash pop &&
        grep quux bazzy
'

test_expect_success 'handle stash specification with spaces' '
        git stash clear &&
        echo pig >file &&
        git stash &&
        stamp=$(git log -g --format="%cd" -1 refs/stash) &&
        test_tick &&
        echo cow >file &&
        git stash &&
        git stash apply "stash@{$stamp}" &&
        grep pig file
'

test_expect_success 'setup stash with index and worktree changes' '
        git stash clear &&
        git reset --hard &&
        echo index >file &&
        git add file &&
        echo working >file &&
        git stash
'

test_expect_success 'stash list -p shows simple diff' '
        cat >expect <<-EOF &&
        stash@{0}

        diff --git a/file b/file
        index 257cc56..d26b33d 100644
        --- a/file
        +++ b/file
        @@ -1 +1 @@
        -foo
        +working
        EOF
        git stash list --format=%gd -p >actual &&
        diff_cmp expect actual
'

test_expect_success 'stash list --cc shows combined diff' '
        cat >expect <<-\EOF &&
        stash@{0}

        diff --cc file
        index 257cc56,9015a7a..d26b33d
        --- a/file
        +++ b/file
        @@@ -1,1 -1,1 +1,1 @@@
        - foo
         -index
        ++working
        EOF
        git stash list --format=%gd -p --cc >actual &&
        diff_cmp expect actual
'

test_expect_success 'stash is not confused by partial renames' '
        mv file renamed &&
        git add renamed &&
        git stash &&
        git stash apply &&
        test_path_is_file renamed &&
        test_path_is_missing file
'

test_expect_success 'push -m shows right message' '
        >foo &&
        git add foo &&
        git stash push -m "test message" &&
        echo "stash@{0}: On main: test message" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'push -m also works without space' '
        >foo &&
        git add foo &&
        git stash push -m"unspaced test message" &&
        echo "stash@{0}: On main: unspaced test message" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'store -m foo shows right message' '
        git stash clear &&
        git reset --hard &&
        echo quux >bazzy &&
        git add bazzy &&
        STASH_ID=$(git stash create) &&
        git stash store -m "store m" $STASH_ID &&
        echo "stash@{0}: store m" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'store -mfoo shows right message' '
        git stash clear &&
        git reset --hard &&
        echo quux >bazzy &&
        git add bazzy &&
        STASH_ID=$(git stash create) &&
        git stash store -m"store mfoo" $STASH_ID &&
        echo "stash@{0}: store mfoo" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'store --message=foo shows right message' '
        git stash clear &&
        git reset --hard &&
        echo quux >bazzy &&
        git add bazzy &&
        STASH_ID=$(git stash create) &&
        git stash store --message="store message=foo" $STASH_ID &&
        echo "stash@{0}: store message=foo" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'store --message foo shows right message' '
        git stash clear &&
        git reset --hard &&
        echo quux >bazzy &&
        git add bazzy &&
        STASH_ID=$(git stash create) &&
        git stash store --message "store message foo" $STASH_ID &&
        echo "stash@{0}: store message foo" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'push -mfoo uses right message' '
        >foo &&
        git add foo &&
        git stash push -m"test mfoo" &&
        echo "stash@{0}: On main: test mfoo" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'push --message foo is synonym for -mfoo' '
        >foo &&
        git add foo &&
        git stash push --message "test message foo" &&
        echo "stash@{0}: On main: test message foo" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'push --message=foo is synonym for -mfoo' '
        >foo &&
        git add foo &&
        git stash push --message="test message=foo" &&
        echo "stash@{0}: On main: test message=foo" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'push -m shows right message' '
        >foo &&
        git add foo &&
        git stash push -m "test m foo" &&
        echo "stash@{0}: On main: test m foo" >expect &&
        git stash list -1 >actual &&
        test_cmp expect actual
'

test_expect_success 'create stores correct message' '
        >foo &&
        git add foo &&
        STASH_ID=$(git stash create "create test message") &&
        echo "On main: create test message" >expect &&
        git show --pretty=%s -s ${STASH_ID} >actual &&
        test_cmp expect actual
'

test_expect_success 'create when branch name has /' '
        test_when_finished "git checkout main" &&
        git checkout -b some/topic &&
        >foo &&
        git add foo &&
        STASH_ID=$(git stash create "create test message") &&
        echo "On some/topic: create test message" >expect &&
        git show --pretty=%s -s ${STASH_ID} >actual &&
        test_cmp expect actual
'

test_expect_success 'create with multiple arguments for the message' '
        >foo &&
        git add foo &&
        STASH_ID=$(git stash create test untracked) &&
        echo "On main: test untracked" >expect &&
        git show --pretty=%s -s ${STASH_ID} >actual &&
        test_cmp expect actual
'

test_expect_success 'create in a detached state' '
        test_when_finished "git checkout main" &&
        git checkout HEAD~1 &&
        >foo &&
        git add foo &&
        STASH_ID=$(git stash create) &&
        HEAD_ID=$(git rev-parse --short HEAD) &&
        echo "WIP on (no branch): ${HEAD_ID} initial" >expect &&
        git show --pretty=%s -s ${STASH_ID} >actual &&
        test_cmp expect actual
'

test_expect_success 'stash -- <pathspec> stashes and restores the file' '
        >foo &&
        >bar &&
        git add foo bar &&
        git stash push -- foo &&
        test_path_is_file bar &&
        test_path_is_missing foo &&
        git stash pop &&
        test_path_is_file foo &&
        test_path_is_file bar
'

test_expect_success 'stash --patch <pathspec> stash and restores the file' '
        test_write_lines b c >file &&
        git commit -m "add a few lines" file &&
        test_write_lines a b c d >file &&
        test_write_lines b c d >expect-file &&
        echo changed-other-file >other-file &&
        test_write_lines s y n | git stash -m "stash bar" --patch file &&
        test_cmp expect-file file &&
        echo changed-other-file >expect &&
        test_cmp expect other-file &&
        git checkout HEAD -- file &&
        git stash pop &&
        test_cmp expect other-file &&
        test_write_lines a b c >expect &&
        test_cmp expect file
'

test_expect_success 'stash <pathspec> -p is rejected' '
        test_must_fail git stash file -p 2>err &&
        test_grep "subcommand wasn${SQ}t specified; ${SQ}push${SQ} can${SQ}t be assumed due to unexpected token ${SQ}file${SQ}" err
'

test_expect_success 'stash -- <pathspec> stashes in subdirectory' '
        mkdir sub &&
        >foo &&
        >bar &&
        git add foo bar &&
        (
                cd sub &&
                git stash push -- ../foo
        ) &&
        test_path_is_file bar &&
        test_path_is_missing foo &&
        git stash pop &&
        test_path_is_file foo &&
        test_path_is_file bar
'

test_expect_success 'stash with multiple pathspec arguments' '
        >foo &&
        >bar &&
        >extra &&
        git add foo bar extra &&
        git stash push -- foo bar &&
        test_path_is_missing bar &&
        test_path_is_missing foo &&
        test_path_is_file extra &&
        git stash pop &&
        test_path_is_file foo &&
        test_path_is_file bar &&
        test_path_is_file extra
'

test_expect_success 'stash with file including $IFS character' '
        >"foo bar" &&
        >foo &&
        >bar &&
        git add foo* &&
        git stash push -- "foo b*" &&
        test_path_is_missing "foo bar" &&
        test_path_is_file foo &&
        test_path_is_file bar &&
        git stash pop &&
        test_path_is_file "foo bar" &&
        test_path_is_file foo &&
        test_path_is_file bar
'

test_expect_success 'stash with pathspec matching multiple paths' '
        echo original >file &&
        echo original >other-file &&
        git commit -m "two" file other-file &&
        echo modified >file &&
        echo modified >other-file &&
        git stash push -- "*file" &&
        echo original >expect &&
        test_cmp expect file &&
        test_cmp expect other-file &&
        git stash pop &&
        echo modified >expect &&
        test_cmp expect file &&
        test_cmp expect other-file
'

test_expect_success 'stash push -p with pathspec shows no changes only once' '
        >foo &&
        git add foo &&
        git commit -m "tmp" &&
        git stash push -p foo >actual &&
        echo "No local changes to save" >expect &&
        git reset --hard HEAD~ &&
        test_cmp expect actual
'

test_expect_success 'push <pathspec>: show no changes when there are none' '
        >foo &&
        git add foo &&
        git commit -m "tmp" &&
        git stash push foo >actual &&
        echo "No local changes to save" >expect &&
        git reset --hard HEAD~ &&
        test_cmp expect actual
'

test_expect_success 'push: <pathspec> not in the repository errors out' '
        >untracked &&
        test_must_fail git stash push untracked &&
        test_path_is_file untracked
'

test_expect_success 'push: -q is quiet with changes' '
        >foo &&
        git add foo &&
        git stash push -q >output 2>&1 &&
        test_must_be_empty output
'

test_expect_success 'push: -q is quiet with no changes' '
        git stash push -q >output 2>&1 &&
        test_must_be_empty output
'

test_expect_success 'push: -q is quiet even if there is no initial commit' '
        git init foo_dir &&
        test_when_finished rm -rf foo_dir &&
        (
                cd foo_dir &&
                >bar &&
                test_must_fail git stash push -q >output 2>&1 &&
                test_must_be_empty output
        )
'

test_expect_success 'untracked files are left in place when -u is not given' '
        >file &&
        git add file &&
        >untracked &&
        git stash push file &&
        test_path_is_file untracked
'

test_expect_success 'stash without verb with pathspec' '
        >"foo bar" &&
        >foo &&
        >bar &&
        git add foo* &&
        git stash -- "foo b*" &&
        test_path_is_missing "foo bar" &&
        test_path_is_file foo &&
        test_path_is_file bar &&
        git stash pop &&
        test_path_is_file "foo bar" &&
        test_path_is_file foo &&
        test_path_is_file bar
'

test_expect_success 'stash -k -- <pathspec> leaves unstaged files intact' '
        git reset &&
        >foo &&
        >bar &&
        git add foo bar &&
        git commit -m "test" &&
        echo "foo" >foo &&
        echo "bar" >bar &&
        git stash -k -- foo &&
        test "",bar = $(cat foo),$(cat bar) &&
        git stash pop &&
        test foo,bar = $(cat foo),$(cat bar)
'

test_expect_success 'stash -- <subdir> leaves untracked files in subdir intact' '
        git reset &&
        >subdir/untracked &&
        >subdir/tracked1 &&
        >subdir/tracked2 &&
        git add subdir/tracked* &&
        git stash -- subdir/ &&
        test_path_is_missing subdir/tracked1 &&
        test_path_is_missing subdir/tracked2 &&
        test_path_is_file subdir/untracked &&
        git stash pop &&
        test_path_is_file subdir/tracked1 &&
        test_path_is_file subdir/tracked2 &&
        test_path_is_file subdir/untracked
'

test_expect_success 'stash -- <subdir> works with binary files' '
        git reset &&
        >subdir/untracked &&
        >subdir/tracked &&
        cp "$TEST_DIRECTORY"/test-binary-1.png subdir/tracked-binary &&
        git add subdir/tracked* &&
        git stash -- subdir/ &&
        test_path_is_missing subdir/tracked &&
        test_path_is_missing subdir/tracked-binary &&
        test_path_is_file subdir/untracked &&
        git stash pop &&
        test_path_is_file subdir/tracked &&
        test_path_is_file subdir/tracked-binary &&
        test_path_is_file subdir/untracked
'

test_expect_success 'stash with user.name and user.email set works' '
        test_config user.name "A U Thor" &&
        test_config user.email "a.u@thor" &&
        git stash
'

test_expect_success 'stash works when user.name and user.email are not set' '
        git reset &&
        >1 &&
        git add 1 &&
        echo "$GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>" >expect &&
        git stash &&
        git show -s --format="%an <%ae>" refs/stash >actual &&
        test_cmp expect actual &&
        >2 &&
        git add 2 &&
        test_config user.useconfigonly true &&
        (
                sane_unset GIT_AUTHOR_NAME &&
                sane_unset GIT_AUTHOR_EMAIL &&
                sane_unset GIT_COMMITTER_NAME &&
                sane_unset GIT_COMMITTER_EMAIL &&
                test_unconfig user.email &&
                test_unconfig user.name &&
                test_must_fail git commit -m "should fail" &&
                echo "git stash <git@stash>" >expect &&
                >2 &&
                git stash &&
                git show -s --format="%an <%ae>" refs/stash >actual &&
                test_cmp expect actual
        )
'

test_expect_success 'stash --keep-index with file deleted in index does not resurrect it on disk' '
        test_commit to-remove to-remove &&
        git rm to-remove &&
        git stash --keep-index &&
        test_path_is_missing to-remove
'

test_expect_success 'stash --keep-index --include-untracked with empty tree' '
        test_when_finished "rm -rf empty" &&
        git init empty &&
        (
                cd empty &&
                git commit --allow-empty --message "empty" &&
                echo content >file &&
                git stash push --keep-index --include-untracked &&
                test_path_is_missing file &&
                git stash pop &&
                echo content >expect &&
                test_cmp expect file
        )
'

test_expect_success 'stash export and import round-trip stashes' '
        git reset &&
        >untracked &&
        >tracked1 &&
        >tracked2 &&
        git add tracked* &&
        git stash -- &&
        >subdir/untracked &&
        >subdir/tracked1 &&
        >subdir/tracked2 &&
        git add subdir/tracked* &&
        git stash --include-untracked -- subdir/ &&
        git tag t-stash0 stash@{0} &&
        git tag t-stash1 stash@{1} &&
        simple=$(git stash export --print) &&
        git stash clear &&
        git stash import "$simple" &&
        test_cmp_rev stash@{0} t-stash0 &&
        test_cmp_rev stash@{1} t-stash1 &&
        git stash export --to-ref refs/heads/foo &&
        test_cmp_rev "$(test_oid empty_tree)" foo: &&
        test_cmp_rev "$(test_oid empty_tree)" foo^: &&
        test_cmp_rev t-stash0 foo^2 &&
        test_cmp_rev t-stash1 foo^^2 &&
        git log --first-parent --format="%s" refs/heads/foo >log &&
        grep "^git stash: " log >log2 &&
        test_line_count = 13 log2 &&
        git stash clear &&
        git stash import foo &&
        test_cmp_rev stash@{0} t-stash0 &&
        test_cmp_rev stash@{1} t-stash1
'

test_expect_success 'stash import appends commits' '
        git log --format=oneline -g refs/stash >out &&
        cat out out >out2 &&
        git stash import refs/heads/foo &&
        git log --format=oneline -g refs/stash >actual &&
        test_line_count = $(wc -l <out2) actual
'

test_expect_success 'stash export can accept specified stashes' '
        git stash clear &&
        git stash import foo &&
        git stash export --to-ref refs/heads/bar stash@{1} stash@{0} &&
        git stash clear &&
        git stash import refs/heads/bar &&
        test_cmp_rev stash@{1} t-stash0 &&
        test_cmp_rev stash@{0} t-stash1 &&
        git log --format=oneline -g refs/stash >actual &&
        test_line_count = 2 actual
'

test_expect_success 'stash export rejects invalid arguments' '
        test_must_fail git stash export --print --to-ref refs/heads/invalid 2>err &&
        grep "exactly one of --print and --to-ref is required" err &&
        test_must_fail git stash export 2>err2 &&
        grep "exactly one of --print and --to-ref is required" err2
'

test_expect_success 'stash can import and export zero stashes' '
        git stash clear &&
        git stash export --to-ref refs/heads/baz &&
        test_cmp_rev "$(test_oid empty_tree)" baz: &&
        test_cmp_rev "$(test_oid export_base)" baz &&
        test_must_fail git rev-parse baz^1 &&
        git stash import baz &&
        test_must_fail git rev-parse refs/stash
'

test_expect_success 'stash rejects invalid attempts to import commits' '
        git stash import foo &&
        test_must_fail git stash import HEAD 2>output &&
        oid=$(git rev-parse HEAD) &&
        grep "$oid is not a valid exported stash commit" output &&
        test_cmp_rev stash@{0} t-stash0 &&

        git checkout --orphan orphan &&
        git commit-tree $(test_oid empty_tree) -p "$oid" -p "$oid^" -m "" >fake-commit &&
        git update-ref refs/heads/orphan "$(cat fake-commit)" &&
        oid=$(git rev-parse HEAD) &&
        test_must_fail git stash import orphan 2>output &&
        grep "found stash commit $oid without expected prefix" output &&
        test_cmp_rev stash@{0} t-stash0 &&

        git checkout --orphan orphan2 &&
        git commit-tree $(test_oid empty_tree) -m "" >fake-commit &&
        git update-ref refs/heads/orphan2 "$(cat fake-commit)" &&
        oid=$(git rev-parse HEAD) &&
        test_must_fail git stash import orphan2 2>output &&
        grep "found root commit $oid with invalid data" output &&
        test_cmp_rev stash@{0} t-stash0
'

test_expect_success 'stash apply should succeed with unmodified file' '
        echo base >file &&
        git add file &&
        git commit -m base &&

        # now stash a modification
        echo modified >file &&
        git stash &&

        # make the file stat dirty
        cp file other &&
        mv other file &&

        git stash apply
'

test_expect_success 'stash handles skip-worktree entries nicely' '
        test_commit A &&
        echo changed >A.t &&
        git add A.t &&
        git update-index --skip-worktree A.t &&
        rm A.t &&
        git stash &&

        git rev-parse --verify refs/stash:A.t
'


BATCH_CONFIGURATION='-c core.fsync=loose-object -c core.fsyncmethod=batch'

test_expect_success 'stash with core.fsyncmethod=batch' "
        test_create_unique_files 2 4 files_base_dir &&
        GIT_TEST_FSYNC=1 git $BATCH_CONFIGURATION stash push -u -- ./files_base_dir/ &&

        # The files were untracked, so use the third parent,
        # which contains the untracked files
        git ls-tree -r stash^3 -- ./files_base_dir/ |
        test_parse_ls_tree_oids >stashed_files_oids &&

        # We created 2 dirs with 4 files each (8 files total) above
        test_line_count = 8 stashed_files_oids &&
        git cat-file --batch-check='%(objectname)' <stashed_files_oids >stashed_files_actual &&
        test_cmp stashed_files_oids stashed_files_actual
"


test_expect_success 'git stash succeeds despite directory/file change' '
        test_create_repo directory_file_switch_v1 &&
        (
                cd directory_file_switch_v1 &&
                test_commit init &&

                test_write_lines this file has some words >filler &&
                git add filler &&
                git commit -m filler &&

                git rm filler &&
                mkdir filler &&
                echo contents >filler/file &&
                git stash push
        )
'

test_expect_success 'git stash can pop file -> directory saved changes' '
        test_create_repo directory_file_switch_v2 &&
        (
                cd directory_file_switch_v2 &&
                test_commit init &&

                test_write_lines this file has some words >filler &&
                git add filler &&
                git commit -m filler &&

                git rm filler &&
                mkdir filler &&
                echo contents >filler/file &&
                cp filler/file expect &&
                git stash push --include-untracked &&
                git stash apply --index &&
                test_cmp expect filler/file
        )
'

test_expect_success 'git stash can pop directory -> file saved changes' '
        test_create_repo directory_file_switch_v3 &&
        (
                cd directory_file_switch_v3 &&
                test_commit init &&

                mkdir filler &&
                test_write_lines some words >filler/file1 &&
                test_write_lines and stuff >filler/file2 &&
                git add filler &&
                git commit -m filler &&

                git rm -rf filler &&
                echo contents >filler &&
                cp filler expect &&
                git stash push --include-untracked &&
                git stash apply --index &&
                test_cmp expect filler
        )
'

test_expect_success 'restore untracked files even when we hit conflicts' '
        git init restore_untracked_after_conflict &&
        (
                cd restore_untracked_after_conflict &&

                echo hi >a &&
                echo there >b &&
                git add . &&
                git commit -m first &&
                echo hello >a &&
                echo something >c &&

                git stash push --include-untracked &&

                echo conflict >a &&
                git add a &&
                git commit -m second &&

                test_must_fail git stash pop &&

                test_path_is_file c
        )
'

test_expect_success 'stash create reports a locked index' '
        test_when_finished "rm -rf repo" &&
        git init repo &&
        (
                cd repo &&
                test_commit A A.file &&
                echo change >A.file &&
                touch .git/index.lock &&

                test_must_fail git stash create 2>err &&
                test_grep "error: could not write index" err &&
                test_grep "error: Unable to create '.*index.lock'" err
        )
'

test_expect_success 'stash push reports a locked index' '
        test_when_finished "rm -rf repo" &&
        git init repo &&
        (
                cd repo &&
                test_commit A A.file &&
                echo change >A.file &&
                touch .git/index.lock &&

                test_must_fail git stash push 2>err &&
                test_grep "error: could not write index" err &&
                test_grep "error: Unable to create '.*index.lock'" err
        )
'

test_expect_success 'stash apply reports a locked index' '
        test_when_finished "rm -rf repo" &&
        git init repo &&
        (
                cd repo &&
                test_commit A A.file &&
                echo change >A.file &&
                git stash push &&
                touch .git/index.lock &&

                test_must_fail git stash apply 2>err &&
                test_grep "error: could not write index" err &&
                test_grep "error: Unable to create '.*index.lock'" err
        )
'

test_expect_success 'submodules does not affect the branch recorded in stash message' '
        git init sub_project &&
        (
                cd sub_project &&
                echo "Initial content in sub_project" >sub_file.txt &&
                git add sub_file.txt &&
                git commit -m "Initial commit in sub_project"
        ) &&

        git init main_project &&
        (
                cd main_project &&
                echo "Initial content in main_project" >main_file.txt &&
                git add main_file.txt &&
                git commit -m "Initial commit in main_project" &&

                git -c protocol.file.allow=always submodule add ../sub_project sub &&
                git commit -m "Added submodule sub_project" &&

                git checkout -b feature_main &&
                git -C sub checkout -b feature_sub &&

                git checkout -b work_branch &&
                echo "Important work to be stashed" >work_item.txt &&
                git add work_item.txt &&
                git stash push -m "custom stash for work_branch" &&

                git stash list >../actual_stash_list.txt &&
                grep "On work_branch: custom stash for work_branch" ../actual_stash_list.txt
        )
'

test_done