mirror of https://github.com/dap-ps/discover.git
261 lines
12 KiB
JavaScript
261 lines
12 KiB
JavaScript
/*global contract, config, it, assert, embark, web3, before, describe, beforeEach*/
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const BigNumber = require('bignumber.js');
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const constants = require('../utils/FormulaConstants.js');
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const catchRevert = require("../utils/Utils").catchRevert;
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const TestBancorFormula = require('Embark/contracts/TestBancorFormula');
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config({
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blockchain: {
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accounts: [
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{
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mnemonic: 'foster gesture flock merge beach plate dish view friend leave drink valley shield list enemy',
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balance: '5 ether',
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numAddresses: '10',
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},
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],
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},
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contracts: {
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deploy: {
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'TestBancorFormula': {},
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},
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},
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}, (_err, web3_accounts) => {
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accounts = web3_accounts
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})
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contract('TestBancorFormula', function () {
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let ILLEGAL_VAL = new BigNumber(2).exponentiatedBy(256);
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let MAX_BASE_N = new BigNumber(2).exponentiatedBy(256 - constants.MAX_PRECISION).minus(1);
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let MIN_BASE_D = new BigNumber(1);
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let MAX_EXPONENT = 1000000;
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for (let percent = 1; percent <= 100; percent++) {
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let baseN = web3.utils.toHex(MAX_BASE_N);
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let baseD = web3.utils.toHex(MAX_BASE_N.minus(1));
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let expN = MAX_EXPONENT * percent / 100;
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let expD = MAX_EXPONENT;
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let test = `Function power(0x${baseN.toString(16)}, 0x${baseD.toString(16)}, ${expN}, ${expD})`;
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it(`${test}:`, async () => {
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await TestBancorFormula.methods.powerTest(baseN, baseD, expN, expD).call();
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});
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}
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for (let percent = 1; percent <= 100; percent++) {
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let baseN = web3.utils.toHex(MAX_BASE_N);
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let baseD = web3.utils.toHex(MAX_BASE_N.minus(1));
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let expN = MAX_EXPONENT;
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let expD = MAX_EXPONENT * percent / 100;
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let test = `Function power(0x${baseN.toString(16)}, 0x${baseD.toString(16)}, ${expN}, ${expD})`;
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it(`${test}:`, async () => {
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await TestBancorFormula.methods.powerTest(baseN, baseD, expN, expD).call();
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});
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}
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for (let percent = 1; percent <= 100; percent++) {
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let baseN = web3.utils.toHex(MAX_BASE_N);
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let baseD = web3.utils.toHex((MIN_BASE_D));
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let expN = MAX_EXPONENT * percent / 100;
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let expD = MAX_EXPONENT;
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let test = `Function power(0x${baseN.toString(16)}, 0x${baseD.toString(16)}, ${expN}, ${expD})`;
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it(`${test}:`, async () => {
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if (percent < 64)
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await TestBancorFormula.methods.powerTest(baseN, baseD, expN, expD).call();
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else
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await catchRevert(TestBancorFormula.methods.powerTest(baseN, baseD, expN, expD).call());
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});
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}
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for (let percent = 1; percent <= 100; percent++) {
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let baseN = web3.utils.toHex(MAX_BASE_N);
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let baseD = web3.utils.toHex(MIN_BASE_D);
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let expN = MAX_EXPONENT;
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let expD = MAX_EXPONENT * percent / 100;
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let test = `Function power(0x${baseN.toString(16)}, 0x${baseD.toString(16)}, ${expN}, ${expD})`;
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it(`${test}:`, async () => {
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await catchRevert(TestBancorFormula.methods.powerTest(baseN, baseD, expN, expD).call());
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});
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}
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let values = [
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MAX_BASE_N.dividedBy(MIN_BASE_D).integerValue(),
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MAX_BASE_N.dividedBy(MAX_BASE_N.minus(1)).integerValue(),
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MIN_BASE_D.plus(1).dividedBy(MIN_BASE_D).integerValue(),
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];
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for (let index = 0; index < values.length; index++) {
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let test = `Function generalLog(0x${values[index].toString(16)})`;
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it(`${test}:`, async () => {
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try {
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let temp = web3.utils.toHex(values[index]);
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let retVal = await TestBancorFormula.methods.generalLogTest(temp).call();
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let check = new BigNumber(parseInt(retVal, 10) * MAX_EXPONENT);
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assert(check.isLessThan(ILLEGAL_VAL), `${test}: output is too large`);
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}
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catch (error) {
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assert(false, error.message);
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}
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});
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}
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for (let precision = constants.MIN_PRECISION; precision <= constants.MAX_PRECISION; precision++) {
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let maxExp = new BigNumber(constants.maxExpArray[precision]);
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let shlVal = new BigNumber(2).exponentiatedBy(constants.MAX_PRECISION - precision);
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let tuples = [
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{'input' : maxExp.plus(0).times(shlVal).minus(1), 'output' : new BigNumber(precision-0)},
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{'input' : maxExp.plus(0).times(shlVal).minus(0), 'output' : new BigNumber(precision-0)},
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{'input' : maxExp.plus(1).times(shlVal).minus(1), 'output' : new BigNumber(precision-0)},
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{'input' : maxExp.plus(1).times(shlVal).minus(0), 'output' : new BigNumber(precision-1)},
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];
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for (let index = 0; index < tuples.length; index++) {
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let input = web3.utils.toHex(tuples[index]['input' ]);
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let output = tuples[index]['output'];
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let test = `Function findPositionInMaxExpArray(0x${input.toString(16)})`;
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it(`${test}:`, async () => {
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if (precision == constants.MIN_PRECISION && output.isLessThan(BigNumber(precision))) {
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await catchRevert(TestBancorFormula.methods.findPositionInMaxExpArrayTest(input).call());
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}
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else {
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let temp = await TestBancorFormula.methods.findPositionInMaxExpArrayTest(input).call();
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let retVal = new BigNumber(temp);
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assert(retVal.isEqualTo(output), `${test}: output should be ${output.toString(10)} but it is ${retVal.toString(10)}`);
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}
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});
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}
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}
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for (let precision = constants.MIN_PRECISION; precision <= constants.MAX_PRECISION; precision++) {
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let maxExp = new BigNumber(constants.maxExpArray[precision]);
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let maxVal = new BigNumber(constants.maxValArray[precision]);
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let errExp = maxExp.plus(1);
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let maxExpi = web3.utils.toHex(maxExp);
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let errExpi = web3.utils.toHex(errExp);
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let test1 = `Function generalExp(0x${maxExp.toString(16)}, ${precision})`;
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let test2 = `Function generalExp(0x${errExp.toString(16)}, ${precision})`;
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it(`${test1}:`, async () => {
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let temp = await TestBancorFormula.methods.generalExpTest(maxExpi, precision).call();
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let retVal = new BigNumber(temp);
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assert(retVal.isEqualTo(maxVal), `${test1}: output is wrong`);
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});
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it(`${test2}:`, async () => {
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let temp = await TestBancorFormula.methods.generalExpTest(errExpi, precision).call();
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let retVal = new BigNumber(temp);
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assert(retVal.isLessThan(maxVal), `${test2}: output indicates that maxExpArray[${precision}] is wrong`);
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});
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}
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for (let precision = constants.MIN_PRECISION; precision <= constants.MAX_PRECISION; precision++) {
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let minExp = new BigNumber(constants.maxExpArray[precision-1]).plus(1);
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let minVal = new BigNumber(2).exponentiatedBy(precision);
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let minExpi = web3.utils.toHex(minExp);
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let test = `Function generalExp(0x${minExp.toString(16)}, ${precision})`;
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it(`${test}:`, async () => {
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let temp = await TestBancorFormula.methods.generalExpTest(minExpi, precision).call();
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let retVal = new BigNumber(temp);
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assert(retVal.isGreaterThanOrEqualTo(minVal), `${test}: output is too small`);
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});
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}
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for (let n = 1; n <= 255; n++) {
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let tuples = [
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{'input' : new BigNumber(2).exponentiatedBy(n) , 'output' : new BigNumber(n)},
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{'input' : new BigNumber(2).exponentiatedBy(n).plus(1) , 'output' : new BigNumber(n)},
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{'input' : new BigNumber(2).exponentiatedBy(n+1).minus(1), 'output' : new BigNumber(n)},
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];
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for (let index = 0; index < tuples.length; index++) {
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let input = web3.utils.toHex(tuples[index]['input' ]);
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let output = tuples[index]['output'];
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let test = `Function floorLog2(0x${input.toString(16)})`;
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it(`${test}:`, async () => {
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let temp = await TestBancorFormula.methods.floorLog2Test(input).call();
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let retVal = new BigNumber(temp);
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assert(retVal.isEqualTo(output), `${test}: output should be ${output.toString(10)} but it is ${retVal.toString(10)}`);
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});
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}
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}
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let Decimal = require("decimal.js");
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Decimal.set({precision: 100, rounding: Decimal.ROUND_DOWN});
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BigNumber.config({DECIMAL_PLACES: 100, ROUNDING_MODE: BigNumber.ROUND_DOWN});
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let LOG_MIN = 1;
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let EXP_MIN = 0;
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let LOG_MAX = new BigNumber(Decimal.exp(1).toFixed());
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let EXP_MAX = new BigNumber(Decimal.pow(2,4).toFixed());
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let FIXED_1 = new BigNumber(2).exponentiatedBy(constants.MAX_PRECISION);
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for (let percent = 0; percent < 100; percent++) {
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let x = new BigNumber(percent).dividedBy(100).times(LOG_MAX.minus(LOG_MIN)).plus(LOG_MIN);
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it(`Function optimalLog(${x.toFixed()})`, async () => {
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try {
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let tmp = web3.utils.toHex(FIXED_1.times(x).integerValue());
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let temp = await TestBancorFormula.methods.optimalLogTest(tmp).call();
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let fixedPoint = new BigNumber(temp);
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let floatPoint = new BigNumber(Decimal(x.toFixed()).ln().times(FIXED_1.toFixed()).toFixed());
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let ratio = fixedPoint.isEqualTo(floatPoint) ? BigNumber(1) : fixedPoint.dividedBy(floatPoint);
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assert(ratio.isGreaterThanOrEqualTo("0.99999999999999999999999999999999999") && ratio.isLessThanOrEqualTo("1"), `ratio = ${ratio.toFixed()}`);
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}
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catch (error) {
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assert(false, error.message);
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}
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});
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}
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for (let percent = 0; percent < 100; percent++) {
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let x = new BigNumber(percent).dividedBy(100).times(EXP_MAX.minus(EXP_MIN)).plus(EXP_MIN);
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it(`Function optimalExp(${x.toFixed()})`, async () => {
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try {
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let tmp = web3.utils.toHex(FIXED_1.times(x).integerValue());
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let temp = await TestBancorFormula.methods.optimalExpTest(tmp).call();
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let fixedPoint = new BigNumber(temp);
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let floatPoint = new BigNumber(Decimal(x.toFixed()).exp().times(FIXED_1.toFixed()).toFixed());
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let ratio = fixedPoint.isEqualTo(floatPoint) ? new BigNumber(1) : fixedPoint.dividedBy(floatPoint);
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assert(ratio.isGreaterThanOrEqualTo("0.99999999999999999999999999999999999") && ratio.isLessThanOrEqualTo("1"), `ratio = ${ratio.toFixed()}`);
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}
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catch (error) {
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assert(false, error.message);
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}
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});
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}
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for (let n = 0; n < 256 - constants.MAX_PRECISION; n++) {
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let values = [
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new BigNumber(2).exponentiatedBy(n),
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new BigNumber(2).exponentiatedBy(n).plus(1),
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new BigNumber(2).exponentiatedBy(n).times(1.5),
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new BigNumber(2).exponentiatedBy(n+1).minus(1),
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];
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for (let index = 0; index < values.length; index++) {
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let x = values[index];
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it(`Function generalLog(${x.toFixed()})`, async () => {
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try {
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let tmp = web3.utils.toHex(FIXED_1.times(x).integerValue());
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let temp = await TestBancorFormula.methods.generalLogTest(tmp).call();
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let fixedPoint = new BigNumber(temp);
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let floatPoint = new BigNumber(Decimal(x.toFixed()).ln().times(FIXED_1.toFixed()).toFixed());
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let ratio = fixedPoint.isEqualTo(floatPoint) ? new BigNumber(1) : fixedPoint.dividedBy(floatPoint);
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assert(ratio.isGreaterThanOrEqualTo("0.99999999999999999999999999999999999") && ratio.isLessThanOrEqualTo("1"), `ratio = ${ratio.toFixed()}`);
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}
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catch (error) {
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assert(false, error.message);
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}
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});
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}
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}
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});
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