testthat::test_that(
  desc = "Test that available_tickers from binance returns a non-empty vector",
  code = {

    # 0) skip if online;
    testthat::skip_if_offline()


    testthat::skip_on_ci()

    logicals <- c(TRUE, FALSE)

    for (lgl in logicals) {

      # 1) Load the available
      # tickers
      tickers <- available_tickers(
        source = 'binance',
        futures = lgl
      )

      # 2) Check wether its
      # a character vector
      testthat::expect_type(
        object = tickers,
        type = 'character'
      )

      # Check that the vector
      # is greater than one
      testthat::expect_gt(
        object = length(tickers),
        expected = 1

      )

    }


  }
)


testthat::test_that(
  desc = "Test that available_tickers from kraken returns a non-empty vector",
  code = {

    # 0) skip if online;
    testthat::skip_if_offline()


    testthat::skip_on_ci()

    logicals <- c(TRUE, FALSE)

    for (lgl in logicals) {

      # 1) Load the available
      # tickers
      tickers <- available_tickers(
        source = 'kraken',
        futures = lgl
      )

      # 2) Check wether its
      # a character vector
      testthat::expect_type(
        object = tickers,
        type = 'character'
      )

      # Check that the vector
      # is greater than one
      testthat::expect_gt(
        object = length(tickers),
        expected = 1

      )

    }


  }
)


testthat::test_that(
  desc = "Test that available_tickers from bitmart returns a non-empty vector",
  code = {

    # 0) skip if online;
    testthat::skip_if_offline()


    testthat::skip_on_ci()

    logicals <- c(TRUE, FALSE)

    for (lgl in logicals) {

      # 1) Load the available
      # tickers
      tickers <- available_tickers(
        source = 'bitmart',
        futures = lgl
      )

      # 2) Check wether its
      # a character vector
      testthat::expect_type(
        object = tickers,
        type = 'character'
      )

      # Check that the vector
      # is greater than one
      testthat::expect_gt(
        object = length(tickers),
        expected = 1

      )

    }


  }
)


testthat::test_that(
  desc = "Test that available_tickers from kucoin returns a non-empty vector",
  code = {

    # 0) skip if online;
    testthat::skip_if_offline()


    testthat::skip_on_ci()

    logicals <- c(TRUE, FALSE)

    for (lgl in logicals) {

      # 1) Load the available
      # tickers
      tickers <- available_tickers(
        source = 'kucoin',
        futures = lgl
      )

      # 2) Check wether its
      # a character vector
      testthat::expect_type(
        object = tickers,
        type = 'character'
      )

      # Check that the vector
      # is greater than one
      testthat::expect_gt(
        object = length(tickers),
        expected = 1

      )

    }


  }
)