import * as chai from 'chai'; import { BlockParamLiteral, JSONRPCErrorCallback, JSONRPCRequestPayload } from 'ethereum-types'; import * as Ganache from 'ganache-core'; import * as _ from 'lodash'; import 'mocha'; import { utils } from '../src/utils'; import { Web3Wrapper } from '../src/web3_wrapper'; import { chaiSetup } from './utils/chai_setup'; chaiSetup.configure(); const { expect } = chai; const NUM_GANACHE_ADDRESSES = 10; describe('Web3Wrapper tests', () => { const NETWORK_ID = 50; const provider = Ganache.provider({ network_id: NETWORK_ID }); const web3Wrapper = new Web3Wrapper(provider); let addresses: string[]; before(async () => { addresses = await web3Wrapper.getAvailableAddressesAsync(); }); describe('#isAddress', () => { it('correctly checks if a string is a valid ethereum address', () => { expect(Web3Wrapper.isAddress('0x0')).to.be.false(); expect(Web3Wrapper.isAddress('0xdeadbeef')).to.be.false(); expect(Web3Wrapper.isAddress('42')).to.be.false(); expect(Web3Wrapper.isAddress('weth.thetoken.eth')).to.be.false(); expect(Web3Wrapper.isAddress('0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2')).to.be.true(); expect(Web3Wrapper.isAddress('0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2')).to.be.true(); }); }); describe('#getNodeVersionAsync', () => { it('gets the node version', async () => { const nodeVersion = await web3Wrapper.getNodeVersionAsync(); const NODE_VERSION = 'EthereumJS TestRPC/v2.1.2/ethereum-js'; expect(nodeVersion).to.be.equal(NODE_VERSION); }); }); describe('#getNetworkIdAsync', () => { it('gets the network id', async () => { const networkId = await web3Wrapper.getNetworkIdAsync(); expect(networkId).to.be.equal(NETWORK_ID); }); }); describe('#getNetworkIdAsync', () => { it('gets the network id', async () => { const networkId = await web3Wrapper.getNetworkIdAsync(); expect(networkId).to.be.equal(NETWORK_ID); }); }); describe('#getAvailableAddressesAsync', () => { it('gets the available addresses', async () => { const availableAddresses = await web3Wrapper.getAvailableAddressesAsync(); expect(availableAddresses.length).to.be.equal(NUM_GANACHE_ADDRESSES); expect(Web3Wrapper.isAddress(availableAddresses[0])).to.equal(true); }); }); describe('#getBalanceInWeiAsync', () => { it('gets the users balance in wei', async () => { const secondAccount = addresses[1]; const balanceInWei = await web3Wrapper.getBalanceInWeiAsync(secondAccount); const tenEthInWei = 100000000000000000000; expect(balanceInWei).to.be.bignumber.equal(tenEthInWei); }); it('should throw if supplied owner not an Ethereum address hex string', async () => { const invalidEthAddress = 'deadbeef'; expect(web3Wrapper.getBalanceInWeiAsync(invalidEthAddress)).to.eventually.to.be.rejected(); }); }); describe('#signMessageAsync', () => { it('should sign message', async () => { const message = '0xdeadbeef'; const signer = addresses[1]; const signature = await web3Wrapper.signMessageAsync(signer, message); const signatureLength = 132; expect(signature.length).to.be.equal(signatureLength); }); it('should throw if the provider returns an error', async () => { const message = '0xdeadbeef'; const signer = addresses[1]; const fakeProvider = { async sendAsync(payload: JSONRPCRequestPayload, callback: JSONRPCErrorCallback): Promise { callback(new Error('User denied message signature')); }, }; const errorWeb3Wrapper = new Web3Wrapper(fakeProvider); expect(errorWeb3Wrapper.signMessageAsync(signer, message)).to.be.rejectedWith( 'User denied message signature', ); }); }); describe('#getBlockNumberAsync', () => { it('get block number', async () => { const blockNumber = await web3Wrapper.getBlockNumberAsync(); expect(typeof blockNumber).to.be.equal('number'); }); }); describe('#getBlockIfExistsAsync', () => { it('gets block when supplied a valid BlockParamLiteral value', async () => { const blockParamLiteral = BlockParamLiteral.Earliest; const blockIfExists = await web3Wrapper.getBlockIfExistsAsync(blockParamLiteral); if (_.isUndefined(blockIfExists)) { throw new Error('Expected block to exist'); } expect(blockIfExists.number).to.be.equal(0); expect(utils.isBigNumber(blockIfExists.difficulty)).to.equal(true); expect(_.isNumber(blockIfExists.gasLimit)).to.equal(true); }); it('gets block when supplied a block number', async () => { const blockParamLiteral = 0; const blockIfExists = await web3Wrapper.getBlockIfExistsAsync(blockParamLiteral); if (_.isUndefined(blockIfExists)) { throw new Error('Expected block to exist'); } expect(blockIfExists.number).to.be.equal(0); }); it('gets block when supplied a block hash', async () => { const blockParamLiteral = 0; const blockIfExists = await web3Wrapper.getBlockIfExistsAsync(blockParamLiteral); if (_.isUndefined(blockIfExists)) { throw new Error('Expected block to exist'); } const sameBlockIfExists = await web3Wrapper.getBlockIfExistsAsync(blockIfExists.hash as string); if (_.isUndefined(sameBlockIfExists)) { throw new Error('Expected block to exist'); } expect(sameBlockIfExists.number).to.be.equal(0); }); it('should throw if supplied invalid blockParam value', async () => { const invalidBlockParam = 'deadbeef'; expect(web3Wrapper.getBlockIfExistsAsync(invalidBlockParam)).to.eventually.to.be.rejected(); }); }); describe('#getBlockWithTransactionDataAsync', () => { it('gets block when supplied a valid BlockParamLiteral value', async () => { const blockParamLiteral = BlockParamLiteral.Earliest; const block = await web3Wrapper.getBlockWithTransactionDataAsync(blockParamLiteral); expect(block.number).to.be.equal(0); expect(utils.isBigNumber(block.difficulty)).to.equal(true); expect(_.isNumber(block.gasLimit)).to.equal(true); }); it('should throw if supplied invalid blockParam value', async () => { const invalidBlockParam = 'deadbeef'; expect(web3Wrapper.getBlockWithTransactionDataAsync(invalidBlockParam)).to.eventually.to.be.rejected(); }); }); describe('#getBlockTimestampAsync', () => { it('gets block timestamp', async () => { const blockParamLiteral = BlockParamLiteral.Earliest; const timestamp = await web3Wrapper.getBlockTimestampAsync(blockParamLiteral); expect(_.isNumber(timestamp)).to.be.equal(true); }); }); });