nix-update/tests/test_cargo_lock_update.py

import subprocess

import conftest

from nix_update import main


def test_main(helpers: conftest.Helpers) -> None:
    with helpers.testpkgs(init_git=True) as path:
        main(
            [
                "--file",
                str(path),
                "--commit",
                "cargoLock.update",
                "--version",
                "v0.4.7",
            ]
        )
        subprocess.run(
            [
                "nix",
                "eval",
                "--raw",
                "--extra-experimental-features",
                "nix-command",
                "-f",
                path,
                "cargoLock.update.cargoDeps",
            ],
            check=True,
            text=True,
            stdout=subprocess.PIPE,
        ).stdout.strip()
        diff = subprocess.run(
            ["git", "-C", path, "show"],
            text=True,
            stdout=subprocess.PIPE,
            check=True,
        ).stdout.strip()
        print(diff)
        assert "https://github.com/astral-sh/ruff/compare/v0.4.5...v0.4.7" in diff