All tests save ERC721 migrated.
This commit is contained in:
@ -1,10 +1,7 @@
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const shouldFail = require('../helpers/shouldFail');
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const { MAX_UINT256 } = require('../helpers/constants');
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const { BN, constants, shouldFail } = require('openzeppelin-test-helpers');
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const SafeMathMock = artifacts.require('SafeMathMock');
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const { BigNumber } = require('../helpers/setup');
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contract('SafeMath', function () {
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beforeEach(async function () {
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this.safeMath = await SafeMathMock.new();
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@ -12,132 +9,132 @@ contract('SafeMath', function () {
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describe('add', function () {
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it('adds correctly', async function () {
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const a = new BigNumber(5678);
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const b = new BigNumber(1234);
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const a = new BN('5678');
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const b = new BN('1234');
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(await this.safeMath.add(a, b)).should.be.bignumber.equal(a.plus(b));
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(await this.safeMath.addUints(a, b)).should.be.bignumber.equal(a.add(b));
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});
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it('reverts on addition overflow', async function () {
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const a = MAX_UINT256;
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const b = new BigNumber(1);
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const a = constants.MAX_UINT256;
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const b = new BN('1');
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await shouldFail.reverting(this.safeMath.add(a, b));
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await shouldFail.reverting(this.safeMath.addUints(a, b));
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});
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});
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describe('sub', function () {
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it('subtracts correctly', async function () {
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const a = new BigNumber(5678);
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const b = new BigNumber(1234);
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const a = new BN('5678');
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const b = new BN('1234');
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(await this.safeMath.sub(a, b)).should.be.bignumber.equal(a.minus(b));
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(await this.safeMath.subUints(a, b)).should.be.bignumber.equal(a.sub(b));
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});
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it('reverts if subtraction result would be negative', async function () {
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const a = new BigNumber(1234);
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const b = new BigNumber(5678);
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const a = new BN('1234');
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const b = new BN('5678');
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await shouldFail.reverting(this.safeMath.sub(a, b));
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await shouldFail.reverting(this.safeMath.subUints(a, b));
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});
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});
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describe('mul', function () {
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it('multiplies correctly', async function () {
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const a = new BigNumber(1234);
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const b = new BigNumber(5678);
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const a = new BN('1234');
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const b = new BN('5678');
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(await this.safeMath.mul(a, b)).should.be.bignumber.equal(a.times(b));
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(await this.safeMath.mulUints(a, b)).should.be.bignumber.equal(a.mul(b));
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});
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it('handles a zero product correctly (first number as zero)', async function () {
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const a = new BigNumber(0);
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const b = new BigNumber(5678);
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const a = new BN('0');
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const b = new BN('5678');
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(await this.safeMath.mul(a, b)).should.be.bignumber.equal(a.times(b));
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(await this.safeMath.mulUints(a, b)).should.be.bignumber.equal(a.mul(b));
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});
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it('handles a zero product correctly (second number as zero)', async function () {
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const a = new BigNumber(5678);
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const b = new BigNumber(0);
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const a = new BN('5678');
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const b = new BN('0');
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(await this.safeMath.mul(a, b)).should.be.bignumber.equal(a.times(b));
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(await this.safeMath.mulUints(a, b)).should.be.bignumber.equal(a.mul(b));
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});
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it('reverts on multiplication overflow', async function () {
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const a = MAX_UINT256;
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const b = new BigNumber(2);
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const a = constants.MAX_UINT256;
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const b = new BN('2');
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await shouldFail.reverting(this.safeMath.mul(a, b));
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await shouldFail.reverting(this.safeMath.mulUints(a, b));
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});
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});
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describe('div', function () {
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it('divides correctly', async function () {
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const a = new BigNumber(5678);
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const b = new BigNumber(5678);
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const a = new BN('5678');
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const b = new BN('5678');
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(await this.safeMath.div(a, b)).should.be.bignumber.equal(a.div(b));
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(await this.safeMath.divUints(a, b)).should.be.bignumber.equal(a.div(b));
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});
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it('divides zero correctly', async function () {
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const a = new BigNumber(0);
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const b = new BigNumber(5678);
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const a = new BN('0');
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const b = new BN('5678');
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(await this.safeMath.div(a, b)).should.be.bignumber.equal(0);
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(await this.safeMath.divUints(a, b)).should.be.bignumber.equal('0');
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});
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it('returns complete number result on non-even division', async function () {
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const a = new BigNumber(7000);
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const b = new BigNumber(5678);
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const a = new BN('7000');
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const b = new BN('5678');
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(await this.safeMath.div(a, b)).should.be.bignumber.equal(1);
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(await this.safeMath.divUints(a, b)).should.be.bignumber.equal('1');
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});
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it('reverts on zero division', async function () {
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const a = new BigNumber(5678);
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const b = new BigNumber(0);
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const a = new BN('5678');
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const b = new BN('0');
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await shouldFail.reverting(this.safeMath.div(a, b));
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await shouldFail.reverting(this.safeMath.divUints(a, b));
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});
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});
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describe('mod', function () {
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describe('modulos correctly', async function () {
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it('when the dividend is smaller than the divisor', async function () {
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const a = new BigNumber(284);
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const b = new BigNumber(5678);
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const a = new BN('284');
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const b = new BN('5678');
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(await this.safeMath.mod(a, b)).should.be.bignumber.equal(a.mod(b));
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(await this.safeMath.modUints(a, b)).should.be.bignumber.equal(a.mod(b));
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});
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it('when the dividend is equal to the divisor', async function () {
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const a = new BigNumber(5678);
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const b = new BigNumber(5678);
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const a = new BN('5678');
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const b = new BN('5678');
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(await this.safeMath.mod(a, b)).should.be.bignumber.equal(a.mod(b));
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(await this.safeMath.modUints(a, b)).should.be.bignumber.equal(a.mod(b));
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});
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it('when the dividend is larger than the divisor', async function () {
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const a = new BigNumber(7000);
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const b = new BigNumber(5678);
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const a = new BN('7000');
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const b = new BN('5678');
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(await this.safeMath.mod(a, b)).should.be.bignumber.equal(a.mod(b));
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(await this.safeMath.modUints(a, b)).should.be.bignumber.equal(a.mod(b));
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});
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it('when the dividend is a multiple of the divisor', async function () {
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const a = new BigNumber(17034); // 17034 == 5678 * 3
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const b = new BigNumber(5678);
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const a = new BN('17034'); // 17034 == 5678 * 3
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const b = new BN('5678');
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(await this.safeMath.mod(a, b)).should.be.bignumber.equal(a.mod(b));
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(await this.safeMath.modUints(a, b)).should.be.bignumber.equal(a.mod(b));
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});
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});
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it('reverts with a 0 divisor', async function () {
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const a = new BigNumber(5678);
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const b = new BigNumber(0);
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const a = new BN('5678');
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const b = new BN('0');
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await shouldFail.reverting(this.safeMath.mod(a, b));
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await shouldFail.reverting(this.safeMath.modUints(a, b));
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});
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});
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});
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