import pytest
from upload.backend.upload_refs.safe_name import safe_name


def test_safe_name_simple():
    assert safe_name("test.txt") == "test.txt"
    assert safe_name("folder/subfolder/file.pdf") == "folder/subfolder/file.pdf"
    assert safe_name("folder\\subfolder\\file.pdf") == "folder/subfolder/file.pdf"


def test_safe_name_traversal():
    assert safe_name("../etc/passwd") == ""
    assert safe_name("folder/../../etc/passwd") == ""
    assert safe_name("/root/file.txt") == "root/file.txt"
    assert safe_name("..") == ""
    assert safe_name("") == ""
    assert safe_name(None) == ""