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authorAmir Bandeali <abandeali1@gmail.com>2018-04-27 00:29:05 +0800
committerAmir Bandeali <abandeali1@gmail.com>2018-04-27 02:11:54 +0800
commit599d34f1c08c3b41817c8cfe3f4e1b847cda072b (patch)
tree6c3299c43de6c5036f6e0d20ab6c15ff14988333 /packages/contracts/test/exchange/helpers.ts
parent31411dd11be29d5dcca646737e6ca08840e2d510 (diff)
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Make all lib functions internal, add contracts for testing
Diffstat (limited to 'packages/contracts/test/exchange/helpers.ts')
-rw-r--r--packages/contracts/test/exchange/helpers.ts178
1 files changed, 0 insertions, 178 deletions
diff --git a/packages/contracts/test/exchange/helpers.ts b/packages/contracts/test/exchange/helpers.ts
deleted file mode 100644
index f986665ff..000000000
--- a/packages/contracts/test/exchange/helpers.ts
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@@ -1,178 +0,0 @@
-import { ZeroEx } from '0x.js';
-import { BlockchainLifecycle } from '@0xproject/dev-utils';
-import { BigNumber } from '@0xproject/utils';
-import * as chai from 'chai';
-import ethUtil = require('ethereumjs-util');
-
-import { ExchangeContract } from '../../src/contract_wrappers/generated/exchange';
-import { addressUtils } from '../../src/utils/address_utils';
-import { assetProxyUtils } from '../../src/utils/asset_proxy_utils';
-import { constants } from '../../src/utils/constants';
-import { ExchangeWrapper } from '../../src/utils/exchange_wrapper';
-import { OrderFactory } from '../../src/utils/order_factory';
-import { orderUtils } from '../../src/utils/order_utils';
-import { AssetProxyId, ContractName, SignedOrder } from '../../src/utils/types';
-import { chaiSetup } from '../utils/chai_setup';
-import { deployer } from '../utils/deployer';
-import { provider, web3Wrapper } from '../utils/web3_wrapper';
-
-chaiSetup.configure();
-const expect = chai.expect;
-
-const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
-
-describe('Exchange helpers', () => {
- let signedOrder: SignedOrder;
- let exchangeWrapper: ExchangeWrapper;
- let orderFactory: OrderFactory;
-
- before(async () => {
- const accounts = await web3Wrapper.getAvailableAddressesAsync();
- const makerAddress = accounts[0];
- const exchangeInstance = await deployer.deployAsync(ContractName.Exchange, [AssetProxyId.ERC20]);
- const exchange = new ExchangeContract(exchangeInstance.abi, exchangeInstance.address, provider);
- const zeroEx = new ZeroEx(provider, { networkId: constants.TESTRPC_NETWORK_ID });
- exchangeWrapper = new ExchangeWrapper(exchange, zeroEx);
-
- const defaultOrderParams = {
- ...constants.STATIC_ORDER_PARAMS,
- exchangeAddress: exchange.address,
- makerAddress,
- feeRecipientAddress: addressUtils.generatePseudoRandomAddress(),
- makerAssetData: assetProxyUtils.encodeERC20ProxyData(addressUtils.generatePseudoRandomAddress()),
- takerAssetData: assetProxyUtils.encodeERC20ProxyData(addressUtils.generatePseudoRandomAddress()),
- };
- const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)];
- orderFactory = new OrderFactory(privateKey, defaultOrderParams);
- });
-
- beforeEach(async () => {
- await blockchainLifecycle.startAsync();
- signedOrder = orderFactory.newSignedOrder();
- });
- afterEach(async () => {
- await blockchainLifecycle.revertAsync();
- });
-
- describe('getOrderHash', () => {
- it('should output the correct orderHash', async () => {
- const orderHashHex = await exchangeWrapper.getOrderHashAsync(signedOrder);
- expect(orderUtils.getOrderHashHex(signedOrder)).to.be.equal(orderHashHex);
- });
- });
-
- describe('isValidSignature', () => {
- beforeEach(async () => {
- signedOrder = orderFactory.newSignedOrder();
- });
-
- it('should return true with a valid signature', async () => {
- const success = await exchangeWrapper.isValidSignatureAsync(signedOrder);
- expect(success).to.be.true();
- });
-
- it('should return false with an invalid signature', async () => {
- const invalidR = ethUtil.sha3('invalidR');
- const invalidS = ethUtil.sha3('invalidS');
- const invalidSigBuff = Buffer.concat([
- ethUtil.toBuffer(signedOrder.signature.slice(0, 6)),
- invalidR,
- invalidS,
- ]);
- const invalidSigHex = `0x${invalidSigBuff.toString('hex')}`;
- signedOrder.signature = invalidSigHex;
- const success = await exchangeWrapper.isValidSignatureAsync(signedOrder);
- expect(success).to.be.false();
- });
- });
-
- describe('isRoundingError', () => {
- it('should return false if there is a rounding error of 0.1%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(999);
- const target = new BigNumber(50);
- // rounding error = ((20*50/999) - floor(20*50/999)) / (20*50/999) = 0.1%
- const isRoundingError = await exchangeWrapper.isRoundingErrorAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
- });
-
- it('should return false if there is a rounding of 0.09%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(9991);
- const target = new BigNumber(500);
- // rounding error = ((20*500/9991) - floor(20*500/9991)) / (20*500/9991) = 0.09%
- const isRoundingError = await exchangeWrapper.isRoundingErrorAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
- });
-
- it('should return true if there is a rounding error of 0.11%', async () => {
- const numerator = new BigNumber(20);
- const denominator = new BigNumber(9989);
- const target = new BigNumber(500);
- // rounding error = ((20*500/9989) - floor(20*500/9989)) / (20*500/9989) = 0.011%
- const isRoundingError = await exchangeWrapper.isRoundingErrorAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.true();
- });
-
- it('should return true if there is a rounding error > 0.1%', async () => {
- const numerator = new BigNumber(3);
- const denominator = new BigNumber(7);
- const target = new BigNumber(10);
- // rounding error = ((3*10/7) - floor(3*10/7)) / (3*10/7) = 6.67%
- const isRoundingError = await exchangeWrapper.isRoundingErrorAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.true();
- });
-
- it('should return false when there is no rounding error', async () => {
- const numerator = new BigNumber(1);
- const denominator = new BigNumber(2);
- const target = new BigNumber(10);
-
- const isRoundingError = await exchangeWrapper.isRoundingErrorAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
- });
-
- it('should return false when there is rounding error <= 0.1%', async () => {
- // randomly generated numbers
- const numerator = new BigNumber(76564);
- const denominator = new BigNumber(676373677);
- const target = new BigNumber(105762562);
- // rounding error = ((76564*105762562/676373677) - floor(76564*105762562/676373677)) /
- // (76564*105762562/676373677) = 0.0007%
- const isRoundingError = await exchangeWrapper.isRoundingErrorAsync(numerator, denominator, target);
- expect(isRoundingError).to.be.false();
- });
- });
-
- describe('getPartialAmount', () => {
- it('should return the numerator/denominator*target', async () => {
- const numerator = new BigNumber(1);
- const denominator = new BigNumber(2);
- const target = new BigNumber(10);
-
- const partialAmount = await exchangeWrapper.getPartialAmountAsync(numerator, denominator, target);
- const expectedPartialAmount = 5;
- expect(partialAmount).to.be.bignumber.equal(expectedPartialAmount);
- });
-
- it('should round down', async () => {
- const numerator = new BigNumber(2);
- const denominator = new BigNumber(3);
- const target = new BigNumber(10);
-
- const partialAmount = await exchangeWrapper.getPartialAmountAsync(numerator, denominator, target);
- const expectedPartialAmount = 6;
- expect(partialAmount).to.be.bignumber.equal(expectedPartialAmount);
- });
-
- it('should round .5 down', async () => {
- const numerator = new BigNumber(1);
- const denominator = new BigNumber(20);
- const target = new BigNumber(10);
-
- const partialAmount = await exchangeWrapper.getPartialAmountAsync(numerator, denominator, target);
- const expectedPartialAmount = 0;
- expect(partialAmount).to.be.bignumber.equal(expectedPartialAmount);
- });
- });
-});