test_snappy.py 文件源码

def _get_snap_version(self, snap_yaml):
        """Arrange for `snap_yaml` to be loaded by `get_snap_version`.

        Puts `snap_yaml` at $tmpdir/meta/snap.yaml, sets SNAP=$tmpdir in the
        environment, then calls `get_snap_version`.
        """
        snap_path = Path(self.make_dir())
        snap_yaml_path = snap_path.joinpath("meta", "snap.yaml")
        snap_yaml_path.parent.mkdir()
        snap_yaml_path.write_text(snap_yaml, "utf-8")
        with EnvironmentVariable("SNAP", str(snap_path)):
            return snappy.get_snap_version()