David Walsh
99 lines
4.0 KiB
TypeScript
99 lines
4.0 KiB
TypeScript
import { BigNumber } from '@0x/utils';
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import Axios, { AxiosInstance } from 'axios';
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import AxiosMockAdapter from 'axios-mock-adapter';
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import * as HttpStatus from 'http-status-codes';
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import { ZeroExApiClient } from '../../src/utils/ZeroExApiClient';
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let axiosClient: AxiosInstance;
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let axiosMock: AxiosMockAdapter;
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describe('ZeroExApiClient', () => {
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beforeAll(() => {
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axiosClient = Axios.create();
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axiosMock = new AxiosMockAdapter(axiosClient);
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});
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afterEach(() => {
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axiosMock.reset();
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});
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describe('fetchAmmQuoteAsync', () => {
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it('returns the AMM quote from 0x API', async () => {
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const zeroExApiClient = new ZeroExApiClient(axiosClient, 'api-key-for-rfq', {
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chainId: 1,
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zeroExClientBaseUrl: 'http://0x-chain-id-1',
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});
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axiosMock.onGet('http://0x-chain-id-1/swap/v1/quote').replyOnce(HttpStatus.OK, {
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buyAmount: '2040568023',
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sellAmount: '1000000000000000000',
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estimatedGas: '126183',
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gasPrice: '73000000000',
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expectedSlippage: '-0.0004065694347781162427479482993648',
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decodedUniqueId: 'a-quoteid-with-timestamp',
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});
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const ammQuote = await zeroExApiClient.fetchAmmQuoteAsync({
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makerToken: 'tokenB',
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takerToken: 'tokenA',
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takerAmount: new BigNumber('1000000000000000000'),
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affiliateAddress: 'rfq-affiliate-address',
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});
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expect(axiosMock.history.get[0].headers['0x-api-key']).toBe('api-key-for-rfq');
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expect(axiosMock.history.get[0].params).toEqual({
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buyToken: 'tokenB',
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sellToken: 'tokenA',
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sellAmount: '1000000000000000000',
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affiliateAddress: 'rfq-affiliate-address',
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excludedSources: '0x',
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});
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expect(ammQuote?.makerAmount.toString()).toEqual('2040568023');
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expect(ammQuote?.takerAmount.toString()).toEqual('1000000000000000000');
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expect(ammQuote?.estimatedGasFeeWei.toString()).toEqual('9211359000000000');
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expect(ammQuote?.expectedSlippage.toString()).toEqual('-0.0004065694347781162427479482993648');
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expect(ammQuote?.decodedUniqueId).toEqual('a-quoteid-with-timestamp');
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});
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it('returns null when 0x API returns an error', async () => {
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const zeroExApiClient = new ZeroExApiClient(axiosClient, 'api-key-for-rfq', {
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chainId: 1,
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zeroExClientBaseUrl: 'http://0x-chain-id-1',
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});
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axiosMock.onGet('http://0x-chain-id-1/swap/v1/quote').replyOnce(HttpStatus.INTERNAL_SERVER_ERROR);
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const ammQuote = await zeroExApiClient.fetchAmmQuoteAsync({
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makerToken: 'tokenB',
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takerToken: 'tokenA',
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takerAmount: new BigNumber('1000000000000000000'),
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});
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expect(ammQuote).toEqual(null);
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});
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it('returns null when 0x API returns unexpected response body', async () => {
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const zeroExApiClient = new ZeroExApiClient(axiosClient, 'api-key-for-rfq', {
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chainId: 1,
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zeroExClientBaseUrl: 'http://0x-chain-id-1',
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});
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axiosMock.onGet('http://0x-chain-id-1/swap/v1/quote').replyOnce(HttpStatus.OK, {
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// Missing buyAmount
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sellAmount: '1000000000000000000',
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estimatedGas: '126183',
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gasPrice: '73000000000',
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expectedSlippage: '-0.0004065694347781162427479482993648',
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decodedUniqueId: 'a-quoteid-with-timestamp',
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});
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const ammQuote = await zeroExApiClient.fetchAmmQuoteAsync({
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makerToken: 'tokenB',
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takerToken: 'tokenA',
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takerAmount: new BigNumber('1000000000000000000'),
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});
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expect(ammQuote).toEqual(null);
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});
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});
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});
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