Test for second refactor pass

from __future__ import annotations

from main import (
    _create_counter_id,
    _get_billboard_chart_data,
    _get_decade_input,
    _scan_billboard_chart_data,
)

test_filepath = 'billboard_chart_test_data.json'


def test_load_data() -> None:
    expected_data = {
        'song': 'Rebel-\u0027rouser',
        'artist': 'Duane Eddy His Twangy Guitar And The Rebels',
        'this_week': 6,
        'peak_position': 6,
        'weeks_on_chart': 1,
    }
    actual_data = _get_billboard_chart_data(test_filepath)

    assert expected_data in actual_data[0]['data']


def test_get_decade_input(monkeypatch) -> None:
    # monkeypatch the "input" function, so that it returns "1950".
    # This simulates the user entering "1950" in the terminal:
    monkeypatch.setattr('builtins.input', lambda _: '1950')
    year = _get_decade_input()
    assert year == '1950'


def test_create_counter_id() -> None:
    expected_id = 50000001
    actual_id = _create_counter_id('1950')
    assert expected_id == actual_id


def test_scan_billboard_chart_data() -> None:
    expected_data = [
        {'song_id': 50000001, 'year': '1958', 'artist': 'Ricky Nelson', 'song': 'Poor Little Fool', 'peak_position': 1},
        {
            'song_id': 50000002,
            'year': '1958',
            'artist': 'Perez Prado And His Orchestra',
            'song': 'Patricia',
            'peak_position': 2,
        },
        {'song_id': 50000003, 'year': '1958', 'artist': 'Bobby Darin', 'song': 'Splish Splash', 'peak_position': 3},
        {
            'song_id': 50000004,
            'year': '1958',
            'artist': 'Elvis Presley With The Jordanaires',
            'song': 'Hard Headed Woman',
            'peak_position': 4,
        },
    ]
    actual_data = _scan_billboard_chart_data(
        _get_billboard_chart_data(test_filepath),
        '1950',
        _create_counter_id('1950'),
    )
    assert actual_data == expected_data