import pytest
from src.text_reversal_tool import reverse_text

def test_reverse_text():
    assert reverse_text("hello hi 12345") == "54321 ih olleh"
    assert reverse_text("world") == "dlrow"
    assert reverse_text("") == ""
    assert reverse_text("madam") == "madam"
    assert reverse_text("12345") == "54321"