ccxt-bybit/js/test/Exchange/test.balance.js

A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges

'use strict'

// ----------------------------------------------------------------------------

const log    = require ('ololog')
    , chai   = require ('chai')
    , assert = chai.assert

// ----------------------------------------------------------------------------

module.exports = (exchange, balance, method) => {

    let currencies = [
        'USD',
        'CNY',
        'EUR',
        'BTC',
        'ETH',
        'JPY',
        'LTC',
        'DASH',
        'DOGE',
        'UAH',
        'RUB',
        'XRP',
    ]

    // log.yellow (balance)

    assert (typeof balance['total'] === 'object')
    assert (typeof balance['free'] === 'object')
    assert (typeof balance['used'] === 'object')

    for (let currency of Object.keys (balance['total'])) {
        let total = balance['total'][currency]
        let free = balance['free'][currency]
        let used = balance['used'][currency]
        if (total !== undefined && free !== undefined && used !== undefined) {
            assert (total === free + used, 'free and used do not sum to total ' + exchange.id)
        }
    }

    let result = currencies
        .filter (currency => (currency in balance) &&
            (balance[currency]['total'] !== undefined))

    if (result.length > 0) {
        result = result.map (currency => currency + ': ' + balance[currency]['total'])
        if (exchange.currencies.length > result.length)
            result = result.join (', ') + ' + more...'
        else
            result = result.join (', ')

    } else {

        result = 'zero balance'
    }

    log (result)

}