How to use the freqtrade.configuration.TimeRange.parse_timerange function in freqtrade

def load_data_test(what, testdatadir):
    timerange = TimeRange.parse_timerange('1510694220-1510700340')
    pair = history.load_tickerdata_file(testdatadir, timeframe='1m',
                                        pair='UNITTEST/BTC', timerange=timerange)
    datalen = len(pair)

    base = 0.001
    if what == 'raise':
        data = [
            [
                pair[x][0],  # Keep old dates
                x * base,  # But replace O,H,L,C
                x * base + 0.0001,
                x * base - 0.0001,
                x * base,
                pair[x][5],  # Keep old volume
            ] for x in range(0, datalen)
        ]

def test_backtest_1min_ticker_interval(default_conf, fee, mocker, testdatadir) -> None:
    default_conf['ask_strategy']['use_sell_signal'] = False
    mocker.patch('freqtrade.exchange.Exchange.get_fee', fee)
    patch_exchange(mocker)
    backtesting = Backtesting(default_conf)

    # Run a backtesting for an exiting 1min timeframe
    timerange = TimeRange.parse_timerange('1510688220-1510700340')
    data = history.load_data(datadir=testdatadir, timeframe='1m', pairs=['UNITTEST/BTC'],
                             timerange=timerange)
    processed = backtesting.strategy.tickerdata_to_dataframe(data)
    min_date, max_date = get_timerange(processed)
    results = backtesting.backtest(
        {
            'stake_amount': default_conf['stake_amount'],
            'processed': processed,
            'max_open_trades': 1,
            'position_stacking': False,
            'start_date': min_date,
            'end_date': max_date,
        }
    )
    assert not results.empty
    assert len(results) == 1

def test_create_cum_profit1(testdatadir):
    filename = testdatadir / "backtest-result_test.json"
    bt_data = load_backtest_data(filename)
    # Move close-time to "off" the candle, to make sure the logic still works
    bt_data.loc[:, 'close_time'] = bt_data.loc[:, 'close_time'] + DateOffset(seconds=20)
    timerange = TimeRange.parse_timerange("20180110-20180112")

    df = load_pair_history(pair="TRX/BTC", ticker_interval='5m',
                           datadir=testdatadir, timerange=timerange)

    cum_profits = create_cum_profit(df.set_index('date'),
                                    bt_data[bt_data["pair"] == 'TRX/BTC'],
                                    "cum_profits", timeframe="5m")
    assert "cum_profits" in cum_profits.columns
    assert cum_profits.iloc[0]['cum_profits'] == 0
    assert cum_profits.iloc[-1]['cum_profits'] == 0.0798005

pair = 'XRP/ETH'
    file1 = testdatadir / 'XRP_ETH-1m.json'
    file5 = testdatadir / 'XRP_ETH-5m.json'
    # Compare downloaded dataset with converted dataset
    dfbak_1m = history.load_pair_history(datadir=testdatadir,
                                         timeframe="1m",
                                         pair=pair)
    dfbak_5m = history.load_pair_history(datadir=testdatadir,
                                         timeframe="5m",
                                         pair=pair)

    _backup_file(file1, copy_file=True)
    _backup_file(file5)

    tr = TimeRange.parse_timerange('20191011-20191012')

    convert_trades_to_ohlcv([pair], timeframes=['1m', '5m'],
                            datadir=testdatadir, timerange=tr, erase=True)

    assert log_has("Deleting existing data for pair XRP/ETH, interval 1m.", caplog)
    # Load new data
    df_1m = history.load_pair_history(datadir=testdatadir,
                                      timeframe="1m",
                                      pair=pair)
    df_5m = history.load_pair_history(datadir=testdatadir,
                                      timeframe="5m",
                                      pair=pair)

    assert df_1m.equals(dfbak_1m)
    assert df_5m.equals(dfbak_5m)

timerange = TimeRange.parse_timerange('20100522-20150730')
    assert timerange == TimeRange('date', 'date', 1274486400, 1438214400)

    # Added test for unix timestamp - BTC genesis date
    assert TimeRange('date', None, 1231006505, 0) == TimeRange.parse_timerange('1231006505-')
    assert TimeRange(None, 'date', 0, 1233360000) == TimeRange.parse_timerange('-1233360000')
    timerange = TimeRange.parse_timerange('1231006505-1233360000')
    assert TimeRange('date', 'date', 1231006505, 1233360000) == timerange

    timerange = TimeRange.parse_timerange('1231006505000-1233360000000')
    assert TimeRange('date', 'date', 1231006505, 1233360000) == timerange

    timerange = TimeRange.parse_timerange('1231006505000-')
    assert TimeRange('date', None, 1231006505, 0) == timerange

    timerange = TimeRange.parse_timerange('-1231006505000')
    assert TimeRange(None, 'date', 0, 1231006505) == timerange

    with pytest.raises(Exception, match=r'Incorrect syntax.*'):
        TimeRange.parse_timerange('-')

def test_tickerdata_to_dataframe_bt(default_conf, mocker, testdatadir) -> None:
    patch_exchange(mocker)
    # timerange = TimeRange(None, 'line', 0, -100)
    timerange = TimeRange.parse_timerange('1510694220-1510700340')
    tick = history.load_tickerdata_file(testdatadir, 'UNITTEST/BTC', '1m', timerange=timerange)
    tickerlist = {'UNITTEST/BTC': parse_ticker_dataframe(tick, '1m', pair="UNITTEST/BTC",
                                                         fill_missing=True)}

    backtesting = Backtesting(default_conf)
    data = backtesting.strategy.tickerdata_to_dataframe(tickerlist)
    assert len(data['UNITTEST/BTC']) == 102

    # Load strategy to compare the result between Backtesting function and strategy are the same
    strategy = DefaultStrategy(default_conf)
    data2 = strategy.tickerdata_to_dataframe(tickerlist)
    assert data['UNITTEST/BTC'].equals(data2['UNITTEST/BTC'])

def test_parse_timerange_incorrect() -> None:

    assert TimeRange('date', None, 1274486400, 0) == TimeRange.parse_timerange('20100522-')
    assert TimeRange(None, 'date', 0, 1274486400) == TimeRange.parse_timerange('-20100522')
    timerange = TimeRange.parse_timerange('20100522-20150730')
    assert timerange == TimeRange('date', 'date', 1274486400, 1438214400)

    # Added test for unix timestamp - BTC genesis date
    assert TimeRange('date', None, 1231006505, 0) == TimeRange.parse_timerange('1231006505-')
    assert TimeRange(None, 'date', 0, 1233360000) == TimeRange.parse_timerange('-1233360000')
    timerange = TimeRange.parse_timerange('1231006505-1233360000')
    assert TimeRange('date', 'date', 1231006505, 1233360000) == timerange

    timerange = TimeRange.parse_timerange('1231006505000-1233360000000')
    assert TimeRange('date', 'date', 1231006505, 1233360000) == timerange

    timerange = TimeRange.parse_timerange('1231006505000-')
    assert TimeRange('date', None, 1231006505, 0) == timerange

    timerange = TimeRange.parse_timerange('-1231006505000')
    assert TimeRange(None, 'date', 0, 1231006505) == timerange

    with pytest.raises(Exception, match=r'Incorrect syntax.*'):
        TimeRange.parse_timerange('-')

assert TimeRange('date', None, 1231006505, 0) == TimeRange.parse_timerange('1231006505-')
    assert TimeRange(None, 'date', 0, 1233360000) == TimeRange.parse_timerange('-1233360000')
    timerange = TimeRange.parse_timerange('1231006505-1233360000')
    assert TimeRange('date', 'date', 1231006505, 1233360000) == timerange

    timerange = TimeRange.parse_timerange('1231006505000-1233360000000')
    assert TimeRange('date', 'date', 1231006505, 1233360000) == timerange

    timerange = TimeRange.parse_timerange('1231006505000-')
    assert TimeRange('date', None, 1231006505, 0) == timerange

    timerange = TimeRange.parse_timerange('-1231006505000')
    assert TimeRange(None, 'date', 0, 1231006505) == timerange

    with pytest.raises(Exception, match=r'Incorrect syntax.*'):
        TimeRange.parse_timerange('-')

def test_refresh_backtest_ohlcv_data(mocker, default_conf, markets, caplog, testdatadir):
    dl_mock = mocker.patch('freqtrade.data.history.download_pair_history', MagicMock())
    mocker.patch(
        'freqtrade.exchange.Exchange.markets', PropertyMock(return_value=markets)
    )
    mocker.patch.object(Path, "exists", MagicMock(return_value=True))
    mocker.patch.object(Path, "unlink", MagicMock())

    ex = get_patched_exchange(mocker, default_conf)
    timerange = TimeRange.parse_timerange("20190101-20190102")
    refresh_backtest_ohlcv_data(exchange=ex, pairs=["ETH/BTC", "XRP/BTC"],
                                timeframes=["1m", "5m"], dl_path=testdatadir,
                                timerange=timerange, erase=True
                                )

    assert dl_mock.call_count == 4
    assert dl_mock.call_args[1]['timerange'].starttype == 'date'

    assert log_has("Downloading pair ETH/BTC, interval 1m.", caplog)

def __init__(self, config: Dict[str, Any]) -> None:
        self.config = config

        # Reset keys for edge
        remove_credentials(self.config)
        self.config['stake_amount'] = constants.UNLIMITED_STAKE_AMOUNT
        self.exchange = Exchange(self.config)
        self.strategy = StrategyResolver(self.config).strategy

        validate_config_consistency(self.config)

        self.edge = Edge(config, self.exchange, self.strategy)
        # Set refresh_pairs to false for edge-cli (it must be true for edge)
        self.edge._refresh_pairs = False

        self.edge._timerange = TimeRange.parse_timerange(None if self.config.get(
            'timerange') is None else str(self.config.get('timerange')))