apply: do not read from beyond a symbolic link

diff --git a/t/t9903-bash-prompt.sh b/t/t9903-bash-prompt.sh
index 3c3e4e8c38023595978368e0b1665e122e0bdfab..59f875e830df432ed200eeca96e70100a1fb2d2b 100755 (executable)
--- a/t/t9903-bash-prompt.sh
+++ b/t/t9903-bash-prompt.sh
@@ -61,6 +61,29 @@ test_expect_success 'prompt - unborn branch' '
        test_cmp expected "$actual"
 '
 
+repo_with_newline='repo
+with
+newline'
+
+if mkdir "$repo_with_newline" 2>/dev/null
+then
+       test_set_prereq FUNNYNAMES
+else
+       say 'Your filesystem does not allow newlines in filenames.'
+fi
+
+test_expect_success FUNNYNAMES 'prompt - with newline in path' '
+       printf " (master)" >expected &&
+       git init "$repo_with_newline" &&
+       test_when_finished "rm -rf \"$repo_with_newline\"" &&
+       mkdir "$repo_with_newline"/subdir &&
+       (
+               cd "$repo_with_newline/subdir" &&
+               __git_ps1 >"$actual"
+       ) &&
+       test_cmp expected "$actual"
+'
+
 test_expect_success 'prompt - detached head' '
        printf " ((%s...))" $(git log -1 --format="%h" --abbrev=13 b1^) >expected &&
        test_config core.abbrev 13 &&