path_to_string_test.py

from pathlib import Path, PurePath
import pytest
from .path_to_string import path_to_string


def test_path_to_string_with_string():
    assert path_to_string("test.txt") == "test.txt"
    assert path_to_string("/home/user/file.txt") == "/home/user/file.txt"


def test_path_to_string_with_valid_url():
    assert path_to_string("file:///path/to/resource") == "/path/to/resource"
    assert path_to_string("file:///another/path") == "/another/path"


def test_path_to_string_with_bytes():
    assert path_to_string(b"test.txt") == "test.txt"
    assert path_to_string(b"/home/user/file.txt") == "/home/user/file.txt"
    # Invalid bytes are replaced with � so traversal components are preserved.
    assert path_to_string(b"\xff") == "�"
    assert path_to_string(b"\xff/../../../etc/passwd") == "�/../../../etc/passwd"
    # Surrogate bytes (AIKIDO-B3YABOSP pattern) also survive as replacement chars.
    assert path_to_string(b"\xed\xa0\x80/../etc/passwd") == "���/../etc/passwd"


def test_path_to_string_with_empty_string():
    assert path_to_string("") == ""


def test_path_to_string_with_none():
    assert path_to_string(None) is None


def test_path_to_string_with_other_types():
    assert path_to_string(123) is None  # Integer input
    assert path_to_string([]) is None  # List input
    assert path_to_string({}) is None  # Dictionary input


def test_path_to_string_with_pure_path():
    assert path_to_string(PurePath("./", "/folder", "/test.py")) == "/test.py"
    assert path_to_string(PurePath("./", "/folder", "test2.py")) == "/folder/test2.py"
    assert path_to_string(PurePath(".", ".", ".")) == "."
    assert path_to_string(PurePath()) == "."
    assert path_to_string(PurePath("test1", "test2", "test3")) == "test1/test2/test3"


def test_path_to_string_with_path():
    assert path_to_string(Path("./", "/folder", "/test.py")) == "/test.py"
    assert path_to_string(Path("./", "/folder", "test2.py")) == "/folder/test2.py"
    assert path_to_string(Path(".", ".", ".")) == "."
    assert path_to_string(Path()) == "."
    assert path_to_string(Path("test1", "test2", "test3")) == "test1/test2/test3"