import pathlib
import shutil
import subprocess
import mwe

def test_python():
    assert mwe.add(1, 2) == 3


def test_executable():
    mwe = shutil.which("mwe.exe")
    assert mwe is not None
    expected = pathlib.Path(__file__).parent.parent / "env" / "bin" / "mwe.exe"
    assert mwe == str(expected.resolve())
    proc = subprocess.run([mwe, "1", "2"], check=True, text=True,
                          capture_output=True)
    assert proc.stdout.strip() == "1 + 2 = 3"