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bot18

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A high-frequency cryptocurrency trading bot by Zenbot creator @carlos8f

bot18.net

carlos8f/bot18

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'use strict' const { numberToString, decimalToPrecision, ROUND, TRUNCATE, DECIMAL_PLACES, PAD_WITH_ZERO, SIGNIFICANT_DIGITS } = require ('../../../../ccxt'); const assert = require ('assert'); // ---------------------------------------------------------------------------- // numberToString works, not supported in Python and PHP yet // assert (numberToString (-7.9e-7) === '-0.0000007899999999999999'); // assert (numberToString ( 7.9e-7) === '0.0000007899999999999999'); // assert (numberToString (-12.345) === '-12.345'); // assert (numberToString ( 12.345) === '12.345'); // assert (numberToString (0) === '0'); // ---------------------------------------------------------------------------- // testDecimalToPrecisionTruncationToNDigitsAfterDot assert (decimalToPrecision ('12.3456000', TRUNCATE, 100, DECIMAL_PLACES) === '12.3456'); assert (decimalToPrecision ('12.3456', TRUNCATE, 100, DECIMAL_PLACES) === '12.3456'); assert (decimalToPrecision ('12.3456', TRUNCATE, 4, DECIMAL_PLACES) === '12.3456'); assert (decimalToPrecision ('12.3456', TRUNCATE, 3, DECIMAL_PLACES) === '12.345'); assert (decimalToPrecision ('12.3456', TRUNCATE, 2, DECIMAL_PLACES) === '12.34'); assert (decimalToPrecision ('12.3456', TRUNCATE, 1, DECIMAL_PLACES) === '12.3'); assert (decimalToPrecision ('12.3456', TRUNCATE, 0, DECIMAL_PLACES) === '12'); // assert (decimalToPrecision ('12.3456', TRUNCATE, -1, DECIMAL_PLACES) === '10'); // not yet supported // assert (decimalToPrecision ('123.456', TRUNCATE, -2, DECIMAL_PLACES) === '120'); // not yet supported // assert (decimalToPrecision ('123.456', TRUNCATE, -3, DECIMAL_PLACES) === '100'); // not yet supported assert (decimalToPrecision ('0', TRUNCATE, 0, DECIMAL_PLACES) === '0'); // ---------------------------------------------------------------------------- // testDecimalToPrecisionTruncationToNSignificantDigits assert (decimalToPrecision ('0.000123456700', TRUNCATE, 100, SIGNIFICANT_DIGITS) === '0.0001234567'); assert (decimalToPrecision ('0.0001234567', TRUNCATE, 100, SIGNIFICANT_DIGITS) === '0.0001234567'); assert (decimalToPrecision ('0.0001234567', TRUNCATE, 7, SIGNIFICANT_DIGITS) === '0.0001234567'); assert (decimalToPrecision ('0.000123456', TRUNCATE, 6, SIGNIFICANT_DIGITS) === '0.000123456'); assert (decimalToPrecision ('0.000123456', TRUNCATE, 5, SIGNIFICANT_DIGITS) === '0.00012345'); assert (decimalToPrecision ('0.000123456', TRUNCATE, 2, SIGNIFICANT_DIGITS) === '0.00012'); assert (decimalToPrecision ('0.000123456', TRUNCATE, 1, SIGNIFICANT_DIGITS) === '0.0001'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 10, SIGNIFICANT_DIGITS) === '123.0000987'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 8, SIGNIFICANT_DIGITS) === '123.00009'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 7, SIGNIFICANT_DIGITS) === '123'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 7, SIGNIFICANT_DIGITS, PAD_WITH_ZERO) === '123.0000'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 4, SIGNIFICANT_DIGITS, PAD_WITH_ZERO) === '123.0'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 2, SIGNIFICANT_DIGITS) === '120'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 1, SIGNIFICANT_DIGITS) === '100'); assert (decimalToPrecision ('123.0000987654', TRUNCATE, 1, SIGNIFICANT_DIGITS, PAD_WITH_ZERO) === '100'); assert (decimalToPrecision ('0', TRUNCATE, 0, SIGNIFICANT_DIGITS) === '0'); // ---------------------------------------------------------------------------- // testDecimalToPrecisionRoundingToNDigitsAfterDot assert (decimalToPrecision ('12.3456000', ROUND, 100, DECIMAL_PLACES) === '12.3456'); assert (decimalToPrecision ('12.3456', ROUND, 100, DECIMAL_PLACES) === '12.3456'); assert (decimalToPrecision ('12.3456', ROUND, 4, DECIMAL_PLACES) === '12.3456'); assert (decimalToPrecision ('12.3456', ROUND, 3, DECIMAL_PLACES) === '12.346'); assert (decimalToPrecision ('12.3456', ROUND, 2, DECIMAL_PLACES) === '12.35'); assert (decimalToPrecision ('12.3456', ROUND, 1, DECIMAL_PLACES) === '12.3'); assert (decimalToPrecision ('12.3456', ROUND, 0, DECIMAL_PLACES) === '12'); // assert (decimalToPrecision ('12.3456', ROUND, -1, DECIMAL_PLACES) === '10'); // not yet supported // assert (decimalToPrecision ('123.456', ROUND, -1, DECIMAL_PLACES) === '120'); // not yet supported // assert (decimalToPrecision ('123.456', ROUND, -2, DECIMAL_PLACES) === '100'); // not yet supported assert (decimalToPrecision ('9.999', ROUND, 3, DECIMAL_PLACES) === '9.999'); assert (decimalToPrecision ('9.999', ROUND, 2, DECIMAL_PLACES) === '10'); assert (decimalToPrecision ('9.999', ROUND, 2, DECIMAL_PLACES, PAD_WITH_ZERO) === '10.00'); assert (decimalToPrecision ('99.999', ROUND, 2, DECIMAL_PLACES, PAD_WITH_ZERO) === '100.00'); assert (decimalToPrecision ('-99.999', ROUND, 2, DECIMAL_PLACES, PAD_WITH_ZERO) === '-100.00'); // ---------------------------------------------------------------------------- // testDecimalToPrecisionRoundingToNSignificantDigits assert (decimalToPrecision ('0.000123456700', ROUND, 100, SIGNIFICANT_DIGITS) === '0.0001234567'); assert (decimalToPrecision ('0.0001234567', ROUND, 100, SIGNIFICANT_DIGITS) === '0.0001234567'); assert (decimalToPrecision ('0.0001234567', ROUND, 7, SIGNIFICANT_DIGITS) === '0.0001234567'); assert (decimalToPrecision ('0.000123456', ROUND, 6, SIGNIFICANT_DIGITS) === '0.000123456'); assert (decimalToPrecision ('0.000123456', ROUND, 5, SIGNIFICANT_DIGITS) === '0.00012346'); assert (decimalToPrecision ('0.000123456', ROUND, 4, SIGNIFICANT_DIGITS) === '0.0001235'); assert (decimalToPrecision ('0.00012', ROUND, 2, SIGNIFICANT_DIGITS) === '0.00012'); assert (decimalToPrecision ('0.0001', ROUND, 1, SIGNIFICANT_DIGITS) === '0.0001'); assert (decimalToPrecision ('123.0000987654', ROUND, 7, SIGNIFICANT_DIGITS) === '123.0001'); assert (decimalToPrecision ('123.0000987654', ROUND, 6, SIGNIFICANT_DIGITS) === '123'); assert (decimalToPrecision ('0.00098765', ROUND, 2, SIGNIFICANT_DIGITS) === '0.00099'); assert (decimalToPrecision ('0.00098765', ROUND, 2, SIGNIFICANT_DIGITS, PAD_WITH_ZERO) === '0.00099'); assert (decimalToPrecision ('0.00098765', ROUND, 1, SIGNIFICANT_DIGITS) === '0.001'); assert (decimalToPrecision ('0.00098765', ROUND, 10, SIGNIFICANT_DIGITS, PAD_WITH_ZERO) === '0.0009876500000'); assert (decimalToPrecision ('0.098765', ROUND, 1, SIGNIFICANT_DIGITS, PAD_WITH_ZERO) === '0.1'); assert (decimalToPrecision ('0', ROUND, 0, SIGNIFICANT_DIGITS) === '0'); // ---------------------------------------------------------------------------- // testDecimalToPrecisionNegativeNumbers assert (decimalToPrecision ('-0.123456', TRUNCATE, 5, DECIMAL_PLACES) === '-0.12345'); assert (decimalToPrecision ('-0.123456', ROUND, 5, DECIMAL_PLACES) === '-0.12346'); // ---------------------------------------------------------------------------- // decimalToPrecision: without dot / trailing dot assert (decimalToPrecision ('123', TRUNCATE, 0) === '123'); assert (decimalToPrecision ('123', TRUNCATE, 5, DECIMAL_PLACES) === '123'); assert (decimalToPrecision ('123', TRUNCATE, 5, DECIMAL_PLACES, PAD_WITH_ZERO) === '123.00000'); assert (decimalToPrecision ('123.', TRUNCATE, 0, DECIMAL_PLACES) === '123'); assert (decimalToPrecision ('123.', TRUNCATE, 5, DECIMAL_PLACES, PAD_WITH_ZERO) === '123.00000'); assert (decimalToPrecision ('0.', TRUNCATE, 0) === '0'); assert (decimalToPrecision ('0.', TRUNCATE, 5, DECIMAL_PLACES, PAD_WITH_ZERO) === '0.00000'); // ---------------------------------------------------------------------------- // decimalToPrecision: rounding for equidistant digits assert (decimalToPrecision ('1.44', ROUND, 1, DECIMAL_PLACES) === '1.4'); assert (decimalToPrecision ('1.45', ROUND, 1, DECIMAL_PLACES) === '1.5'); assert (decimalToPrecision ('1.45', ROUND, 0, DECIMAL_PLACES) === '1'); // not 2 // ---------------------------------------------------------------------------- // testDecimalToPrecisionErrorHandling (todo) // // throws (() => // decimalToPrecision ('123456.789', TRUNCATE, -2, DECIMAL_PLACES), // 'negative precision is not yet supported') // // throws (() => // decimalToPrecision ('foo'), // "invalid number (contains an illegal character 'f')")