# script: test funding-rate
# date: 2024-03-01
# author: Serkan Korkmaz, serkor1@duck.com
# objective: These will be skipped
# on CRAN and Github
# script start;

testthat::test_that(
  desc = "Funding Rate returns data as expected",
  code = {

    # Pre-calculate dates
    start_date <- Sys.Date() - 7
    end_date <- Sys.Date() - 1
    current_year <- as.numeric(format(Sys.Date(), '%Y'))

    # 0) Define available exchanges
    exchanges <- suppressMessages(available_exchanges(type = "fundingrate"))

    # 1) skip if offline and on github
    testthat::skip_if_offline()
    testthat::skip_on_ci()

    for (exchange in exchanges) {

      error_label <- exchange

      ticker <- switch (exchange,
        'binance' = "BTCUSDT",
        "bybit"   = "BTCUSDT",
        "kucoin"  = "XBTUSDTM"
      )

      # 1) run without any errors
      testthat::expect_no_error(
        output <- get_fundingrate(
          ticker = ticker,
          source = exchange,
          # Use yesterdays date
          # to avoid ambiguity
          # in non-realiszed values
          from = start_date,
          to   = end_date
        ),message = error_label
      )


      # Check year range
      year_range <- as.numeric(format(range(zoo::index(output)), "%Y"))

      # The minimum year has to be greater than 2000
      testthat::expect_gte(min(year_range), expected = 2000, label = error_label)

      # The maximum year has to be less than the current system year.
      testthat::expect_lte(max(year_range), expected = current_year, label = error_label)

    }

  }
)

# script end;