"""Test helper functions."""

import pandas as pd
from datetime import datetime, timedelta


def create_sample_ohlcv(periods: int = 100) -> pd.DataFrame:
    """Create sample OHLCV data."""
    dates = pd.date_range(start=datetime.now() - timedelta(hours=periods), periods=periods, freq='1H')
    return pd.DataFrame({
        'timestamp': dates,
        'open': [100 + i * 0.1 for i in range(periods)],
        'high': [101 + i * 0.1 for i in range(periods)],
        'low': [99 + i * 0.1 for i in range(periods)],
        'close': [100.5 + i * 0.1 for i in range(periods)],
        'volume': [1000.0] * periods
    })


def assert_decimal_equal(actual, expected, places=2):
    """Assert two decimals are equal within places."""
    from decimal import Decimal
    actual_decimal = Decimal(str(actual)).quantize(Decimal('0.01'))
    expected_decimal = Decimal(str(expected)).quantize(Decimal('0.01'))
    assert actual_decimal == expected_decimal