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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<void> {
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);
});
});
});
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