import sys
import os
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '../..')))

from utils import fd_utils
from datetime import date

def test_calculate_fd_returns():
    result = fd_utils.calculate_fd_returns(1000, 0.05, date(2020, 1, 1), date(2021, 1, 1))
    # 1 year at 5% interest
    assert abs(result - 1050) < 1