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Fix decoding and add tests

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This commit is contained in:
Amir Bandeali 2018-12-02 13:16:07 -08:00
parent aae32037da
commit 8549252a2c
2 changed files with 55 additions and 34 deletions
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17
packages/order-utils/src/asset_data_utils.ts
View File

@ -30,10 +30,11 @@ export const assetDataUtils = {
assetDataUtils.validateERC20AssetDataThrow(assetData);
const assetProxyId = assetDataUtils.decodeAssetProxyId(assetData);
const abiEncoder = new AbiEncoder.Method(constants.ERC20_METHOD_ABI as MethodAbi);
const [tokenAddress] = abiEncoder.decode(assetData, decodingRules);
const decodedAssetData = abiEncoder.decode(assetData, decodingRules);
return {
assetProxyId,
tokenAddress,
// TODO(abandeali1): fix decode return types
tokenAddress: (decodedAssetData as any).tokenContract,
};
},
/**
@ -58,11 +59,12 @@ export const assetDataUtils = {
assetDataUtils.validateERC721AssetDataOrThrow(assetData);
const assetProxyId = assetDataUtils.decodeAssetProxyId(assetData);
const abiEncoder = new AbiEncoder.Method(constants.ERC721_METHOD_ABI as MethodAbi);
const [tokenAddress, tokenId] = abiEncoder.decode(assetData, decodingRules);
const decodedAssetData = abiEncoder.decode(assetData, decodingRules);
return {
assetProxyId,
tokenAddress,
tokenId,
// TODO(abandeali1): fix decode return types
tokenAddress: (decodedAssetData as any).tokenContract,
tokenId: (decodedAssetData as any).tokenId,
};
},
/**
@ -95,7 +97,10 @@ export const assetDataUtils = {
assetDataUtils.validateMultiAssetDataOrThrow(assetData);
const assetProxyId = assetDataUtils.decodeAssetProxyId(assetData);
const abiEncoder = new AbiEncoder.Method(constants.MULTI_ASSET_METHOD_ABI as MethodAbi);
const [amounts, nestedAssetData] = abiEncoder.decode(assetData, decodingRules);
const decodedAssetData = abiEncoder.decode(assetData, decodingRules);
// TODO(abandeali1): fix decode return types
const amounts = (decodedAssetData as any).amounts;
const nestedAssetData = (decodedAssetData as any).nestedAssetData;
if (amounts.length !== nestedAssetData.length) {
throw new Error(
`Invalid MultiAsset assetData. Expected length of 'amounts' (${

72
packages/order-utils/test/asset_data_utils_test.ts
View File

@ -1,6 +1,6 @@
import * as chai from 'chai';
import { ERC20AssetData, ERC721AssetData } from '@0x/types';
import { AssetProxyId } from '@0x/types';
import { BigNumber } from '@0x/utils';
import { assetDataUtils } from '../src/asset_data_utils';
@ -10,41 +10,57 @@ import { chaiSetup } from './utils/chai_setup';
chaiSetup.configure();
const expect = chai.expect;
const KNOWN_ENCODINGS = [
{
address: '0x1dc4c1cefef38a777b15aa20260a54e584b16c48',
assetData: '0xf47261b00000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c48',
},
{
address: '0x1dc4c1cefef38a777b15aa20260a54e584b16c48',
tokenId: new BigNumber(1),
assetData:
'0x025717920000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c480000000000000000000000000000000000000000000000000000000000000001',
},
];
const ERC20_ASSET_PROXY_ID = '0xf47261b0';
const ERC721_ASSET_PROXY_ID = '0x02571792';
const KNOWN_ERC20_ENCODING = {
address: '0x1dc4c1cefef38a777b15aa20260a54e584b16c48',
assetData: '0xf47261b00000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c48',
};
const KNOWN_ERC721_ENCODING = {
address: '0x1dc4c1cefef38a777b15aa20260a54e584b16c48',
tokenId: new BigNumber(1),
assetData:
'0x025717920000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c480000000000000000000000000000000000000000000000000000000000000001',
};
const KNOWN_MULTI_ASSET_ENCODING = {
amounts: [new BigNumber(1), new BigNumber(1)],
nestedAssetData: [KNOWN_ERC20_ENCODING.assetData, KNOWN_ERC721_ENCODING.assetData],
assetData:
'0x94cfcdd7000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000024f47261b00000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c48000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000044025717920000000000000000000000001dc4c1cefef38a777b15aa20260a54e584b16c48000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000',
};
describe('assetDataUtils', () => {
it('should encode ERC20', () => {
const assetData = assetDataUtils.encodeERC20AssetData(KNOWN_ENCODINGS[0].address);
expect(assetData).to.equal(KNOWN_ENCODINGS[0].assetData);
const assetData = assetDataUtils.encodeERC20AssetData(KNOWN_ERC20_ENCODING.address);
expect(assetData).to.equal(KNOWN_ERC20_ENCODING.assetData);
});
it('should decode ERC20', () => {
const assetData: ERC20AssetData = assetDataUtils.decodeERC20AssetData(KNOWN_ENCODINGS[0].assetData);
expect(assetData.tokenAddress).to.equal(KNOWN_ENCODINGS[0].address);
expect(assetData.assetProxyId).to.equal(ERC20_ASSET_PROXY_ID);
const decodedAssetData = assetDataUtils.decodeERC20AssetData(KNOWN_ERC20_ENCODING.assetData);
expect(decodedAssetData.tokenAddress).to.equal(KNOWN_ERC20_ENCODING.address);
expect(decodedAssetData.assetProxyId).to.equal(AssetProxyId.ERC20);
});
it('should encode ERC721', () => {
const assetData = assetDataUtils.encodeERC721AssetData(KNOWN_ENCODINGS[1].address, KNOWN_ENCODINGS[1]
.tokenId as BigNumber);
expect(assetData).to.equal(KNOWN_ENCODINGS[1].assetData);
const assetData = assetDataUtils.encodeERC721AssetData(
KNOWN_ERC721_ENCODING.address,
KNOWN_ERC721_ENCODING.tokenId,
);
expect(assetData).to.equal(KNOWN_ERC721_ENCODING.assetData);
});
it('should decode ERC721', () => {
const assetData: ERC721AssetData = assetDataUtils.decodeERC721AssetData(KNOWN_ENCODINGS[1].assetData);
expect(assetData.tokenAddress).to.equal(KNOWN_ENCODINGS[1].address);
expect(assetData.assetProxyId).to.equal(ERC721_ASSET_PROXY_ID);
expect(assetData.tokenId).to.be.bignumber.equal(KNOWN_ENCODINGS[1].tokenId);
const decodedAssetData = assetDataUtils.decodeERC721AssetData(KNOWN_ERC721_ENCODING.assetData);
expect(decodedAssetData.tokenAddress).to.equal(KNOWN_ERC721_ENCODING.address);
expect(decodedAssetData.assetProxyId).to.equal(AssetProxyId.ERC721);
expect(decodedAssetData.tokenId).to.be.bignumber.equal(KNOWN_ERC721_ENCODING.tokenId);
});
it('should encode ERC20 and ERC721', () => {
const assetData = assetDataUtils.encodeMultiAssetData(
KNOWN_MULTI_ASSET_ENCODING.amounts,
KNOWN_MULTI_ASSET_ENCODING.nestedAssetData,
);
expect(assetData).to.equal(KNOWN_MULTI_ASSET_ENCODING.assetData);
});
it('should decode ERC20 and ERC21', () => {
const decodedAssetData = assetDataUtils.decodeMultiAssetData(KNOWN_MULTI_ASSET_ENCODING.assetData);
expect(decodedAssetData.assetProxyId).to.equal(AssetProxyId.MultiAsset);
expect(decodedAssetData.amounts).to.deep.equal(KNOWN_MULTI_ASSET_ENCODING.amounts);
expect(decodedAssetData.nestedAssetData).to.deep.equal(KNOWN_MULTI_ASSET_ENCODING.nestedAssetData);
});
});