"""Test singleuser module."""
import sys

from glicid_spawner import singleuser


async def mock_api_request(_, **kwargs):
    """Mock JupyterHub authentication service."""
    sys.stdout.write(str(kwargs))


def test_singleuser(monkeypatch, capsys):
    """Test single user main query."""
    monkeypatch.setattr(
        singleuser.sys, 'argv', ['/bin/glicid-spawner-singleuser', 'jupyterhub-singleuser']
    )
    monkeypatch.setattr(singleuser.HubAuth, 'api_url', 'http://example.org')
    monkeypatch.setattr(singleuser.HubAuth, '_api_request', mock_api_request)
    monkeypatch.setattr(singleuser, 'random_port', lambda: 12345)
    monkeypatch.setattr(singleuser, 'which', lambda cmd: cmd)
    monkeypatch.setattr(singleuser, 'run_path', lambda cmd, **kwargs: sys.stderr.write(cmd))

    _ = singleuser.main()

    assert sys.argv[-1] == '--port=12345'

    captured = capsys.readouterr()

    assert (
        captured.out
        == "{'method': 'POST', 'url': 'http://example.org/batchspawner', 'body': '{\"port\": 12345}'}"
    )

    assert captured.err == 'jupyterhub-singleuser'