David Walsh
43 lines
1.8 KiB
TypeScript
43 lines
1.8 KiB
TypeScript
import { ChainId } from '@0x/contract-addresses';
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import * as chai from 'chai';
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import 'mocha';
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import { BalancerPoolsCache, PoolsCache } from '../../src/asset-swapper/utils/market_operation_utils/pools_cache';
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import { chaiSetup } from './utils/chai_setup';
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chaiSetup.configure();
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const expect = chai.expect;
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const usdcAddress = '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48';
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const daiAddress = '0x6b175474e89094c44da98b954eedeac495271d0f';
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const wethAddress = '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2';
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const timeoutMs = 5000;
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const poolKeys: string[] = ['id', 'balanceIn', 'balanceOut', 'weightIn', 'weightOut', 'swapFee'];
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describe('Pools Caches for Balancer-based sampling', () => {
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async function fetchAndAssertPoolsAsync(cache: PoolsCache, takerToken: string, makerToken: string): Promise<void> {
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const pools = await cache.getFreshPoolsForPairAsync(takerToken, makerToken, timeoutMs);
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expect(pools.length).greaterThan(0, `Failed to find any pools for ${takerToken} and ${makerToken}`);
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expect(pools[0]).not.to.be.undefined;
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expect(Object.keys(pools[0])).to.include.members(poolKeys);
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const cachedPoolIds = cache.getPoolAddressesForPair(takerToken, makerToken);
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expect(cachedPoolIds).to.deep.equal(pools.map((p) => p.id));
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}
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describe('BalancerPoolsCache', () => {
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const cache = BalancerPoolsCache.create(ChainId.Mainnet);
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it('fetches pools', async () => {
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const pairs = [
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[usdcAddress, daiAddress],
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[usdcAddress, wethAddress],
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[daiAddress, wethAddress],
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];
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await Promise.all(
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pairs.map(async ([takerToken, makerToken]) => fetchAndAssertPoolsAsync(cache, takerToken, makerToken)),
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);
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});
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});
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});
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