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const numberToBN = require('../index.js');
const BigNumber = require('bignumber.js');
const BN = require('bn.js');
const assert = require('chai').assert;

describe("numberToBN", () => {
  describe("constructor", () => {
    it("should be function export", () => {
      assert.equal(typeof numberToBN, 'function');
    });
  });

  const testCases = [
    { value: 0.1, expected: '0', shouldThrow: true },
    { value: '0.1', expected: '0', shouldThrow: true },
    { value: '-0.1', expected: '0', shouldThrow: true },
    { value: '.', expected: '0', shouldThrow: true },
    { value: [], expected: '0', shouldThrow: true },
    { value: undefined, expected: '0', shouldThrow: true },
    { value: null, expected: '0', shouldThrow: true },
    { value: {}, expected: '0', shouldThrow: true },
    { value: true, expected: '0', shouldThrow: true },
    { value: false, expected: '0', shouldThrow: true },
    { value: 'Z', expected: '0', shouldThrow: true },
    { value: 'z', expected: '0', shouldThrow: true },
    { value: 'zZZ', expected: '0', shouldThrow: true },
    { value: 'a.a', expected: '0', shouldThrow: true },
    { value: 'aA.af', expected: '0', shouldThrow: true },
    { value: '0xaA.af', expected: '0', shouldThrow: true },
    { value: '-0xaA.af', expected: '0', shouldThrow: true },
    { value: '-0xa.0a', expected: '0', shouldThrow: true },
    { value: '-0X0A.0a', expected: '0', shouldThrow: true },
    { value: '0x10', expected: '16', shouldThrow: false },
    { value: '-0x10', expected: '-16', shouldThrow: false },
    { value: '0X10', expected: '16', shouldThrow: false },
    { value: '0x', expected: '0', shouldThrow: false },
    { value: '0x10', expected: '16', shouldThrow: false },
    { value: '-0X10', expected: '-16', shouldThrow: false },
    { value: ' 0X10', expected: '16', shouldThrow: false },
    { value: ' -0X10', expected: '-16', shouldThrow: false },
    { value: "20938490284092380dfsjkZ", expected: '0', shouldThrow: true },
    { value: ":", expected: '0', shouldThrow: true },
    { value: "%", expected: '0', shouldThrow: true },
    { value: new BigNumber('100.001'), expected: '0', shouldThrow: true },
    { value: new BigNumber('-100.001'), expected: '0', shouldThrow: true },
    { value: new BigNumber('1.20'), expected: '0', shouldThrow: true },
    { value: 'Someone', expected: '0', shouldThrow: true },
    { value: '100.002fsdfdss', expected: '0', shouldThrow: true },
    { value: new Array(), expected: '-1', shouldThrow: true },
    { value: '0x9184e72a000', expected: new BN('9184e72a000', 16).toString(10) },
    { value: '0x15df', expected: new BN('15df', 16).toString(10) },
    { value: '0x57840CC2C', expected: new BN('57840CC2C', 16).toString(10) },
    { value: '9184E72a000', expected: new BN('9184e72a000', 16).toString(10) },
    { value: '15Df', expected: new BN('15df', 16).toString(10) },
    { value: '57840cC2C', expected: new BN('57840CC2C', 16).toString(10) },
    { value: '9184e72a000', expected: new BN('9184e72a000', 16).toString(10) },
    { value: '15df', expected: new BN('15df', 16).toString(10) },
    { value: '57840CC2C', expected: new BN('57840CC2C', 16).toString(10) },
    { value: ' -9184e72a000 ', expected: new BN('-9184e72a000', 16).toString(10) },
    { value: ' -15df ', expected: new BN('-15df', 16).toString(10) },
    { value: ' -57840CC2C ', expected: new BN('-57840CC2C', 16).toString(10) },
    { value: '-9184e72a000', expected: new BN('-9184e72a000', 16).toString(10) },
    { value: '-15df', expected: new BN('-15df', 16).toString(10) },
    { value: '-57840CC2C', expected: new BN('-57840CC2C', 16).toString(10) },
    { value: ' 0x9184e72a000', expected: new BN('9184e72a000', 16).toString(10) },
    { value: ' 0x15df', expected: new BN('15df', 16).toString(10) },
    { value: ' 0x57840CC2C', expected: new BN('57840CC2C', 16).toString(10) },
    { value: '-0x9184e72a000', expected: new BN('-9184e72a000', 16).toString(10) },
    { value: '-0x15df', expected: new BN('-15df', 16).toString(10) },
    { value: '-0x57840CC2C', expected: new BN('-57840CC2C', 16).toString(10) },
    { value: '', expected: '0', shouldThrow: false },
    { value: '-', expected: '0', shouldThrow: false },
    { value: 0, expected: '0', shouldThrow: false },
    { value: 1, expected: '1', shouldThrow: false },
    { value: -0, expected: '0', shouldThrow: false },
    { value: ' 0', expected: '0', shouldThrow: false },
    { value: ' 1', expected: '1', shouldThrow: false },
    { value: ' -0', expected: '0', shouldThrow: false },
    { value: ' -1 ', expected: '-1', shouldThrow: false },
    { value: ' 0 ', expected: '0', shouldThrow: false },
    { value: ' 1 ', expected: '1', shouldThrow: false },
    { value: ' -0 ', expected: '0', shouldThrow: false },
    { value: ' -1 ', expected: '-1', shouldThrow: false },
    { value: '0 ', expected: '0', shouldThrow: false },
    { value: '1 ', expected: '1', shouldThrow: false },
    { value: '-0 ', expected: '0', shouldThrow: false },
    { value: '-1 ', expected: '-1', shouldThrow: false },
    { value: '0', expected: '0', shouldThrow: false },
    { value: '1', expected: '1', shouldThrow: false },
    { value: '-0', expected: '0', shouldThrow: false },
    { value: '-1', expected: '-1', shouldThrow: false },
    { value: new BN(0), expected: '0', shouldThrow: false },
    { value: new BN(1), expected: '1', shouldThrow: false },
    { value: new BN(-1), expected: '-1', shouldThrow: false },
    { value: new BN(-0), expected: '0', shouldThrow: false },
    { value: new BigNumber(0), expected: '0', shouldThrow: false },
    { value: new BigNumber(1), expected: '1', shouldThrow: false },
    { value: new BigNumber('-1'), expected: '-1', shouldThrow: false },
    { value: new BigNumber('-0'), expected: '0', shouldThrow: false },
    { value: -92348723897, expected: '-92348723897', shouldThrow: false },
    { value: 24387298347, expected: '24387298347', shouldThrow: false },
    { value: 'a', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: '0a', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: '0xa', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: '0x0a', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: 'A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: '0A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: '0xA', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: '0x0A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: '0X0A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' a', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0a', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0xa', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0x0a', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0xA', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0x0A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0X0A', expected: new BN('a', 16).toString(10), shouldThrow: false },
    { value: ' 0aF', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' 0xaf', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' 0x0AF', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' Af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' 0Af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' 0xAf', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' 0x0AF', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: ' 0X0Af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: 'af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: '0af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: '0xaf', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: '0x0af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: 'Af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: '0Af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: '0xAf', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: '0x0Af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: '0X0Af', expected: new BN('af', 16).toString(10), shouldThrow: false },
    { value: new BigNumber('423879248942387943287923489724387987923'), expected: '423879248942387943287923489724387987923', shouldThrow: false },
    { value: new BN('423879248942387943287923489724387987923'), expected: '423879248942387943287923489724387987923', shouldThrow: false },
    { value: new BigNumber('24897234987'), expected: '24897234987', shouldThrow: false },
    { value: new BN('24897234987'), expected: '24897234987', shouldThrow: false },
    { value: new BigNumber('-423879248942387943287923489724387987923'), expected: '-423879248942387943287923489724387987923', shouldThrow: false },
    { value: new BN('-423879248942387943287923489724387987923'), expected: '-423879248942387943287923489724387987923', shouldThrow: false },
    { value: new BigNumber('-24897234987'), expected: '-24897234987', shouldThrow: false },
    { value: new BN('-24897234987'), expected: '-24897234987', shouldThrow: false },

    // web3 tests
    { value: 1, expected: '1' },
    { value: '1', expected: '1' },
    { value: '0x1', expected: '1'},
    { value: '0x01', expected: '1'},
    { value: 15, expected: '15'},
    { value: '15', expected: '15'},
    { value: '0xf', expected: '15'},
    { value: '0x0f', expected: '15'},
    { value: new BN('f', 16), expected: '15'},
    { value: new BigNumber('f', 16), expected: '15'},
    { value: -1, expected: '-1'},
    { value: '-1', expected: '-1'},
    { value: '-0x1', expected: '-1'},
    { value: '-0x01', expected: '-1'},
    { value: -15, expected: '-15'},
    { value: '-15', expected: '-15'},
    { value: '-0xf', expected: '-15'},
    { value: '-0x0f', expected: '-15'},
    { value: '0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: '0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: '-0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: '-0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: 0, expected: '0'},
    { value: '0', expected: '0'},
    { value: '0x0', expected: '0'},
    { value: -0, expected: '0'},
    { value: '-0', expected: '0'},
    { value: '-0x0', expected: '0'},
    { value: new BN(0), expected: '0'},
    { value: new BigNumber(0), expected: '0'},

    { value: new BN('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16), expected: '115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: new BN('fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd', 16), expected: '115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: new BN('-ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16), expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: new BN('-fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd', 16), expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639933'},

    // BigNumber found to improperly handle large hex nums...
    // { value: new BigNumber('ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16), expected: '115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    // { value: new BigNumber('fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd', 16), expected: '115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    // { value: new BigNumber('-ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff', 16), expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    // { value: new BigNumber('-fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffd', 16), expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639933'},

    { value: ' 87234987239872349872489724897248972348972389472498728723897234', expected: '87234987239872349872489724897248972348972389472498728723897234', shouldThrow: false },
    { value: ' 0x87234987239872349872489724897248972348972389472498728723897234', expected: '238767897175128767816754103632273854819223082003987283874830606953481859636', shouldThrow: false },
    { value: ' -0x87234987239872349872489724897248972348972389472498728723897234 ', expected: '-238767897175128767816754103632273854819223082003987283874830606953481859636', shouldThrow: false },
    { value: ' 0xfffffffffFffffffffffffffffffffffffffffffffffffffffffffffffffffff', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: ' 0xfffffffffffffffffffffffffffffffffffffffFfffffffffffffffffffffffD ', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: ' -0xfffffffffffffffffffFffffffffffffffffffffffffffffffffffffffffffff', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: ' -0xfffffffffffffffffffffffffffffffffffffffffffffffffFfffffffffffffd ', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: ' fffffffffFffffffffffffffffffffffffffffffffffffffffffffffffffffff', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: ' fffffffffffffffffffffffffffffffffffffffFfffffffffffffffffffffffD ', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: ' -fffffffffffffffffffFffffffffffffffffffffffffffffffffffffffffffff', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: ' -fffffffffffffffffffffffffffffffffffffffffffffffffFfffffffffffffd ', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639933'},

    { value: '87234987239872349872489724897248972348972389472498728723897234', expected: '87234987239872349872489724897248972348972389472498728723897234', shouldThrow: false },
    { value: '0x87234987239872349872489724897248972348972389472498728723897234', expected: '238767897175128767816754103632273854819223082003987283874830606953481859636', shouldThrow: false },
    { value: '-0x87234987239872349872489724897248972348972389472498728723897234', expected: '-238767897175128767816754103632273854819223082003987283874830606953481859636', shouldThrow: false },
    { value: '0xfffffffffFffffffffffffffffffffffffffffffffffffffffffffffffffffff', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: '0xfffffffffffffffffffffffffffffffffffffffFfffffffffffffffffffffffD', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: '-0xfffffffffffffffffffFffffffffffffffffffffffffffffffffffffffffffff', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: '-0xfffffffffffffffffffffffffffffffffffffffffffffffffFfffffffffffffd', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: 'fffffffffFffffffffffffffffffffffffffffffffffffffffffffffffffffff', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: 'fffffffffffffffffffffffffffffffffffffffFfffffffffffffffffffffffD', expected: '115792089237316195423570985008687907853269984665640564039457584007913129639933'},
    { value: '-fffffffffffffffffffFffffffffffffffffffffffffffffffffffffffffffff', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639935'},
    { value: '-fffffffffffffffffffffffffffffffffffffffffffffffffFfffffffffffffd', expected: '-115792089237316195423570985008687907853269984665640564039457584007913129639933'},
  ];

  testCases.forEach(function (test) {
    if (test.shouldThrow === true) {
      it('should turn ' + test.value + ' to throw Error.. ', function () {
        assert.throws(() => numberToBN(test.value), Error);
      });
    } else {
      it('should turn ' + test.value + ' to ' + test.expected, function () {
        assert.equal(numberToBN(test.value).toString(10), test.expected);
      });
    }
  });
});

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