import pytest
import main 


@pytest.fixture(autouse=True)
def patch_log(monkeypatch):
    monkeypatch.setattr(main, "log", lambda msg: None)
    monkeypatch.setattr(main, "logvv", lambda msg: None)


def test_find_geo_extrama_simpple():
    data = [
        [0, 'dummy', (50.1, 8.1) ],
        [1, 'dummy', (50.2, 8.2) ],
        [2, 'dummy', (50.3, 8.4) ],
        [3, 'dummy', (49.3, 8.4) ],
        [4, 'dummy', (49.3, 7.4) ]
    ]

    result = main.find_geo_extrema(data)
    expected = (49.3, 50.3, 7.4, 8.4)
    assert result == expected


def test_find_geo_extrama_single():
    data = [
        [0, 'dummy', (50.1, 8.1) ]
    ]

    result = main.find_geo_extrema(data)
    expected = (50.1, 50.1, 8.1, 8.1)
    assert result == expected


def test_find_geo_extrama_empty():
    data = [
    ]

    result = main.find_geo_extrema(data)
    expected = None
    assert result == expected