mirror of
https://github.com/kremalicious/metamask-extension.git
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542 lines
19 KiB
TypeScript
542 lines
19 KiB
TypeScript
import { BigNumber } from 'bignumber.js';
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import { BN } from 'bn.js';
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import { EtherDenomination } from '../constants/common';
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import { Numeric } from './Numeric';
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const ONE_ETH = new Numeric(1, 10, EtherDenomination.ETH);
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const ONE_GWEI = new Numeric(1, 10, EtherDenomination.GWEI);
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const ONE_WEI = new Numeric(1, 10, EtherDenomination.WEI);
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describe('Numeric', () => {
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describe('Basic Numeric Construction', () => {
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describe('From hexadeciaml strings', () => {
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it('Should create a new Numeric from a hexadecimal string', () => {
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const numeric = new Numeric('0xa', 16);
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expect(numeric.value).toEqual(new BigNumber(10, 10));
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});
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it('Should create a new Numeric from a hexadecimal string with a decimal', () => {
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const numeric = new Numeric('0xa.7', 16);
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expect(numeric.value).toEqual(new BigNumber(10.4375, 10));
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});
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it('Should create a new Numeric from a hexadecimal string with negation', () => {
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const numeric = new Numeric('-0xa', 16);
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expect(numeric.value).toEqual(new BigNumber(-10, 10));
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});
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it('Should create a new Numeric from a hexadecimal string with negation and decimal', () => {
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const numeric = new Numeric('-0xa.7', 16);
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expect(numeric.value).toEqual(new BigNumber(-10.4375, 10));
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});
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});
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describe('From decimal strings', () => {
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it('Should create a new Numeric from a decimal string', () => {
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const numeric = new Numeric('10', 10);
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expect(numeric.value).toEqual(new BigNumber(10, 10));
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});
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it('Should create a new Numeric from a decimal string with a decimal', () => {
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const numeric = new Numeric('10.4375', 10);
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expect(numeric.value).toEqual(new BigNumber(10.4375, 10));
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});
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it('Should create a new Numeric from a decimal string with negation', () => {
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const numeric = new Numeric('-10', 10);
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expect(numeric.value).toEqual(new BigNumber(-10, 10));
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});
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it('Should create a new Numeric from a decimal string with negation and decimal', () => {
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const numeric = new Numeric('-10.4375', 10);
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expect(numeric.value).toEqual(new BigNumber(-10.4375, 10));
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});
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});
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describe('From decimal numbers', () => {
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it('Should create a new Numeric from a hexadecimal number', () => {
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const numeric = new Numeric(10, 10);
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expect(numeric.value).toEqual(new BigNumber(10, 10));
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});
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it('Should create a new Numeric from a hexadecimal string with a decimal', () => {
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const numeric = new Numeric(10.4375, 10);
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expect(numeric.value).toEqual(new BigNumber(10.4375, 10));
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});
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it('Should create a new Numeric from a hexadecimal string with negation', () => {
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const numeric = new Numeric(-10, 10);
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expect(numeric.value).toEqual(new BigNumber(-10, 10));
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});
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it('Should create a new Numeric from a hexadecimal string with negation and decimal', () => {
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const numeric = new Numeric(-10.4375, 16);
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expect(numeric.value).toEqual(new BigNumber(-10.4375, 10));
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});
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});
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describe('From BigNumbers or BN', () => {
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it('Should create a new Numeric from a BigNumber', () => {
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const numeric = new Numeric(new BigNumber(100, 10));
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expect(numeric.value).toEqual(new BigNumber(100, 10));
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});
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it('Should create a new Numeric from a BN', () => {
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const numeric = new Numeric(new BN(100, 10), 10);
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expect(numeric.value).toEqual(new BigNumber(100, 10));
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});
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});
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});
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describe('Error checking', () => {
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it('Should throw an error for a non numeric string', () => {
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expect(() => new Numeric('Hello there', 10)).toThrow(
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'String provided to stringToBigNumber is not a hexadecimal or decimal string: Hello there, 10',
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);
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});
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it('Should throw an error for a numeric string without a base', () => {
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expect(() => new Numeric('10')).toThrow(
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'You must specify the base of the provided number if the value is not already a BigNumber',
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);
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});
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it('Should throw an error for a non numeric type', () => {
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expect(() => new Numeric(true as unknown as number, 10)).toThrow(
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'Value: true is not a string, number, BigNumber or BN. Type is: boolean.',
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);
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});
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});
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describe('Erroneous behaviors that we are temporarily continuing', () => {
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it('Handles values that are undefined, setting the value to 0', () => {
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expect(new Numeric(undefined as unknown as number).toString()).toEqual(
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'0',
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);
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});
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it('Handles values that are NaN, setting the value to 0', () => {
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expect(new Numeric(NaN).toString()).toEqual('0');
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});
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});
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describe('Ether denomination conversion', () => {
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it('should convert 1 ETH to 1000000000 GWEI', () => {
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expect(ONE_ETH.toDenomination(EtherDenomination.GWEI).toString()).toEqual(
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'1000000000',
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);
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});
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it('should convert 1 ETH to 1000000000000000000 WEI', () => {
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expect(ONE_ETH.toDenomination(EtherDenomination.WEI).toString()).toEqual(
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'1000000000000000000',
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);
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});
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it('should convert 1 GWEI to 0.000000001 ETH', () => {
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expect(ONE_GWEI.toDenomination(EtherDenomination.ETH).toString()).toEqual(
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'0.000000001',
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);
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});
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it('should convert 1 GWEI to 1000000000 WEI', () => {
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expect(ONE_GWEI.toDenomination(EtherDenomination.WEI).toString()).toEqual(
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'1000000000',
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);
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});
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it('should convert 1 WEI to 0 ETH due to rounding', () => {
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expect(ONE_WEI.toDenomination(EtherDenomination.ETH).toString()).toEqual(
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'0',
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);
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});
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it('should convert 1 WEI to 0.000000001 GWEI', () => {
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expect(ONE_WEI.toDenomination(EtherDenomination.GWEI).toString()).toEqual(
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'0.000000001',
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);
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});
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});
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describe('Math operations', () => {
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describe('Multiplication', () => {
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it('Should compute correct results for simple multiplication', () => {
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expect(new Numeric(5, 10).times(5, 10).toNumber()).toEqual(25);
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expect(
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new Numeric(5, 10).times(new Numeric(10, 10)).toNumber(),
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).toEqual(50);
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expect(
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new Numeric(25, 10).times(new Numeric(10, 10)).toNumber(),
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).toEqual(250);
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});
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it('Should compute correct results for multiplication of big numbers', () => {
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expect(
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new Numeric('175671432', 10).times('686216', 10).toString(),
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).toEqual('120548547381312');
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expect(
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new Numeric('1756714320', 10)
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.times(new Numeric('686216', 10))
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.toString(),
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).toEqual('1205485473813120');
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expect(
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new Numeric('41756714320', 10)
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.times(new Numeric('6862160', 10))
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.toString(),
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).toEqual('286541254738131200');
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});
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it('Should compute correct results for multiplication of negative big numbers', () => {
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expect(
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new Numeric('175671432', 10).times('-686216', 10).toString(),
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).toEqual('-120548547381312');
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expect(
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new Numeric('1756714320', 10)
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.times(new Numeric('-686216', 10))
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.toString(),
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).toEqual('-1205485473813120');
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expect(
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new Numeric('-41756714320', 10)
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.times(new Numeric('-6862160', 10))
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.toString(),
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).toEqual('286541254738131200');
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});
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});
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describe('Division', () => {
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it('Should compute correct results for simple division', () => {
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expect(new Numeric(25, 10).divide(5, 10).toNumber()).toEqual(5);
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expect(
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new Numeric(50, 10).divide(new Numeric(10, 10)).toNumber(),
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).toEqual(5);
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expect(
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new Numeric(250, 10).divide(new Numeric(10, 10)).toNumber(),
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).toEqual(25);
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});
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it('Should compute correct results for division of big numbers', () => {
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expect(
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new Numeric('175671432', 10).divide('686216', 10).toString(),
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).toEqual('256.00019818832554181191');
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expect(
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new Numeric('1756714320', 10)
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.divide(new Numeric('686216', 10))
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.toString(),
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).toEqual('2560.00198188325541811908');
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expect(
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new Numeric('41756714320', 10)
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.divide(new Numeric('6862160', 10))
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.toString(),
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).toEqual('6085.06859647691106007438');
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});
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it('Should compute correct results for division of negative big numbers', () => {
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expect(
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new Numeric('175671432', 10).divide('-686216', 10).toString(),
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).toEqual('-256.00019818832554181191');
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expect(
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new Numeric('1756714320', 10)
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.divide(new Numeric('-686216', 10))
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.toString(),
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).toEqual('-2560.00198188325541811908');
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expect(
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new Numeric('-41756714320', 10)
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.divide(new Numeric('-6862160', 10))
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.toString(),
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).toEqual('6085.06859647691106007438');
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});
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});
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describe('Addition', () => {
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it('Should compute correct results for simple addition', () => {
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expect(new Numeric(25, 10).add(5, 10).toNumber()).toEqual(30);
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expect(new Numeric(50, 10).add(new Numeric(10, 10)).toNumber()).toEqual(
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60,
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);
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expect(
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new Numeric(250, 10).add(new Numeric(100, 10)).toNumber(),
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).toEqual(350);
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});
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it('Should compute correct results for addition of big numbers', () => {
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expect(
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new Numeric('175671432', 10).add('686216', 10).toString(),
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).toEqual('176357648');
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expect(
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new Numeric('1756714320', 10)
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.add(new Numeric('686216', 10))
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.toString(),
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).toEqual('1757400536');
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expect(
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new Numeric('41756714320', 10)
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.add(new Numeric('6862160', 10))
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.toString(),
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).toEqual('41763576480');
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});
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it('Should compute correct results for addition of negative big numbers', () => {
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expect(
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new Numeric('175671432', 10).add('-686216', 10).toString(),
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).toEqual('174985216');
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expect(
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new Numeric('1756714320', 10)
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.add(new Numeric('-686216', 10))
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.toString(),
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).toEqual('1756028104');
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expect(
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new Numeric('-41756714320', 10)
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.add(new Numeric('-6862160', 10))
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.toString(),
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).toEqual('-41763576480');
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});
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});
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describe('Subtraction', () => {
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it('Should compute correct results for simple subtraction', () => {
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expect(new Numeric(25, 10).minus(5, 10).toNumber()).toEqual(20);
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expect(
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new Numeric(50, 10).minus(new Numeric(10, 10)).toNumber(),
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).toEqual(40);
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expect(
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new Numeric(250, 10).minus(new Numeric(100, 10)).toNumber(),
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).toEqual(150);
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});
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it('Should compute correct results for subtraction of big numbers', () => {
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expect(
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new Numeric('175671432', 10).minus('686216', 10).toString(),
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).toEqual('174985216');
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expect(
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new Numeric('1756714320', 10)
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.minus(new Numeric('686216', 10))
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.toString(),
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).toEqual('1756028104');
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expect(
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new Numeric('41756714320', 10)
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.minus(new Numeric('6862160', 10))
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.toString(),
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).toEqual('41749852160');
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});
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it('Should compute correct results for subtraction of negative big numbers', () => {
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expect(
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new Numeric('175671432', 10).minus('-686216', 10).toString(),
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).toEqual('176357648');
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expect(
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new Numeric('1756714320', 10)
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.minus(new Numeric('-686216', 10))
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.toString(),
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).toEqual('1757400536');
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expect(
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new Numeric('-41756714320', 10)
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.minus(new Numeric('-6862160', 10))
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.toString(),
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).toEqual('-41749852160');
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});
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});
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describe('applyConversionRate', () => {
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it('Should multiply the value by the conversionRate supplied', () => {
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expect(
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new Numeric(10, 10).applyConversionRate(468.5).toString(),
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).toEqual('4685');
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});
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it('Should multiply the value by the conversionRate supplied when conversionRate is a BigNumber', () => {
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expect(
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new Numeric(10, 10)
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.applyConversionRate(new BigNumber(468.5, 10))
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.toString(),
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).toEqual('4685');
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});
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it('Should multiply the value by the inverse of conversionRate supplied when second parameter is true', () => {
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expect(
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new Numeric(10, 10).applyConversionRate(468.5, true).toString(),
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).toEqual('0.0213447171824973319');
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});
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it('Should multiply the value by the inverse of the BigNumber conversionRate supplied when second parameter is true', () => {
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expect(
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new Numeric(10, 10)
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.applyConversionRate(new BigNumber(468.5, 10), true)
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.toString(),
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).toEqual('0.0213447171824973319');
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});
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});
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});
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describe('Base conversion', () => {
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it('should convert a hexadecimal string to a decimal string', () => {
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expect(new Numeric('0x5208', 16).toBase(10).toString()).toEqual('21000');
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});
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it('should convert a decimal string to a hexadecimal string', () => {
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expect(new Numeric('21000', 10).toBase(16).toString()).toEqual('5208');
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});
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it('should convert a decimal string to a 0x prefixed hexadecimal string', () => {
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expect(new Numeric('21000', 10).toPrefixedHexString()).toEqual('0x5208');
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});
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it('should convert a decimal number to a hexadecimal string', () => {
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expect(new Numeric(21000, 10).toBase(16).toString()).toEqual('5208');
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});
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it('should convert a decimal number to a 0x prefixed hexadecimal string', () => {
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expect(new Numeric(21000, 10).toPrefixedHexString()).toEqual('0x5208');
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});
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});
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describe('Comparisons', () => {
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it('Should correctly identify that 0xa is greater than 0x9', () => {
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expect(new Numeric('0xa', 16).greaterThan('0x9', 16)).toEqual(true);
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});
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it('Should correctly identify that 0x9 is less than 0xa', () => {
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expect(new Numeric('0x9', 16).lessThan('0xa', 16)).toEqual(true);
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});
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it('Should correctly identify that 0xa is greater than or equal to 0xa', () => {
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expect(new Numeric('0xa', 16).greaterThanOrEqualTo('0xa', 16)).toEqual(
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true,
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);
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});
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it('Should correctly identify that 0xa is less than or equal to 0xa', () => {
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expect(new Numeric('0xa', 16).lessThanOrEqualTo('0xa', 16)).toEqual(true);
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});
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it('Should correctly identify that 0xa is greater than 9', () => {
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expect(new Numeric('0xa', 16).greaterThan(9, 10)).toEqual(true);
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});
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it('Should correctly identify that 0x9 is less than 10', () => {
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expect(new Numeric('0x9', 16).lessThan(10, 10)).toEqual(true);
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});
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it('Should correctly identify that 10 is greater than or equal to 0xa', () => {
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expect(new Numeric(10, 10).greaterThanOrEqualTo('0xa', 16)).toEqual(true);
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});
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it('Should correctly identify that 10 is less than or equal to 0xa', () => {
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expect(new Numeric(10, 10).lessThanOrEqualTo('0xa', 16)).toEqual(true);
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});
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});
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describe('Positive and Negative determination', () => {
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it('Should correctly identify a negative number with isNegative', () => {
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expect(new Numeric(-10, 10).isNegative()).toEqual(true);
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expect(new Numeric('-10', 10).isNegative()).toEqual(true);
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expect(new Numeric('-0xa', 16).isNegative()).toEqual(true);
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});
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it('Should return false for isNegative when number is positive', () => {
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expect(new Numeric(10, 10).isNegative()).toEqual(false);
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expect(new Numeric('10', 10).isNegative()).toEqual(false);
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expect(new Numeric('0xa', 16).isNegative()).toEqual(false);
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});
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it('Should correctly identify a positive number with isPositive', () => {
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expect(new Numeric(10, 10).isPositive()).toEqual(true);
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expect(new Numeric('10', 10).isPositive()).toEqual(true);
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expect(new Numeric('0xa', 16).isPositive()).toEqual(true);
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});
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it('Should return false for isPositive when number is negative', () => {
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expect(new Numeric(-10, 10).isPositive()).toEqual(false);
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expect(new Numeric('-10', 10).isPositive()).toEqual(false);
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expect(new Numeric('-0xa', 16).isPositive()).toEqual(false);
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});
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});
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describe('Terminating functions, return values', () => {
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describe('toString', () => {
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it('Should return a string representation of provided hex', () => {
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expect(new Numeric('0xa', 16).toString()).toEqual('a');
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});
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it('Should return a string representation of provided decimal string', () => {
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expect(new Numeric('10', 10).toString()).toEqual('10');
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});
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it('Should return a string representation of provided number', () => {
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expect(new Numeric(10, 10).toString()).toEqual('10');
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});
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it('Should return a string representation of provided float', () => {
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expect(new Numeric(10.5, 10).toString()).toEqual('10.5');
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});
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it('Should return a string representation of provided BigNumber', () => {
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expect(new Numeric(new BigNumber(10, 10)).toString()).toEqual('10');
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});
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it('Should return a string representation of provided BN', () => {
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expect(new Numeric(new BN(10, 10)).toString()).toEqual('10');
|
|
});
|
|
});
|
|
|
|
describe('toNumber', () => {
|
|
it('Should return a number representing provided hex', () => {
|
|
expect(new Numeric('0xa', 16).toNumber()).toEqual(10);
|
|
});
|
|
|
|
it('Should return a number representation of provided decimal string', () => {
|
|
expect(new Numeric('10', 10).toNumber()).toEqual(10);
|
|
});
|
|
|
|
it('Should return a number representation of provided number', () => {
|
|
expect(new Numeric(10, 10).toNumber()).toEqual(10);
|
|
});
|
|
|
|
it('Should return a number representation of provided float', () => {
|
|
expect(new Numeric(10.5, 10).toNumber()).toEqual(10.5);
|
|
});
|
|
|
|
it('Should return a number representation of provided BigNumber', () => {
|
|
expect(new Numeric(new BigNumber(10, 10)).toNumber()).toEqual(10);
|
|
});
|
|
|
|
it('Should return a number representation of provided BN', () => {
|
|
expect(new Numeric(new BN(10, 10)).toNumber()).toEqual(10);
|
|
});
|
|
});
|
|
|
|
describe('toFixed', () => {
|
|
it('Should return a string representing provided hex to 2 decimal places', () => {
|
|
expect(new Numeric('0xa.7', 16).toFixed(2)).toEqual('10.44');
|
|
});
|
|
|
|
it('Should return a string representation of provided decimal string to 2 decimal places', () => {
|
|
expect(new Numeric('10.4375', 10).toFixed(2)).toEqual('10.44');
|
|
});
|
|
|
|
it('Should return a string representation of provided float to 2 decimal places', () => {
|
|
expect(new Numeric(10.4375, 10).toFixed(2)).toEqual('10.44');
|
|
});
|
|
|
|
it('Should return a number representation of provided BigNumber to 2 decimal places', () => {
|
|
expect(new Numeric(new BigNumber(10.4375, 10)).toFixed(2)).toEqual(
|
|
'10.44',
|
|
);
|
|
});
|
|
});
|
|
});
|
|
});
|