@hyperlane-xyz/sdk/dist/gas/token-prices.test.js

The official SDK for the Hyperlane Network

import { expect } from 'chai';
import sinon from 'sinon';
import { TestChainName, testChainMetadata } from '../consts/testChains.js';
import { CoinGeckoTokenPriceGetter } from './token-prices.js';
const MOCK_FETCH_CALLS = true;
const ethereum = {};
const solanamainnet = {};
describe('TokenPriceGetter', () => {
    let tokenPriceGetter;
    const chainA = TestChainName.test1;
    const chainB = TestChainName.test2;
    const priceA = 2;
    const priceB = 5;
    let stub;
    beforeEach(() => {
        tokenPriceGetter = new CoinGeckoTokenPriceGetter({
            // @ts-ignore TODO: remove once merged with main
            chainMetadata: { ethereum, solanamainnet, ...testChainMetadata },
            apiKey: 'test',
            expirySeconds: 10,
            sleepMsBetweenRequests: 10,
        });
        if (MOCK_FETCH_CALLS) {
            stub = sinon
                .stub(tokenPriceGetter, 'fetchPriceData')
                .returns(Promise.resolve([priceA, priceB]));
        }
    });
    afterEach(() => {
        if (MOCK_FETCH_CALLS && stub) {
            stub.restore();
        }
    });
    describe('getTokenPriceByIds', () => {
        it('returns token prices', async () => {
            // stubbed results
            expect(await tokenPriceGetter.getTokenPriceByIds(['ethereum', 'solana'])).to.eql([priceA, priceB]);
        });
    });
    describe('getTokenPrice', () => {
        it('returns a token price', async () => {
            // hardcoded result of 1 for testnets
            expect(await tokenPriceGetter.getTokenPrice(TestChainName.test1)).to.equal(1);
            // stubbed result for non-testnet
            expect(await tokenPriceGetter.getTokenPrice('ethereum')).to.equal(priceA);
        });
    });
    describe('getTokenExchangeRate', () => {
        it('returns a value consistent with getTokenPrice()', async () => {
            // hardcoded result of 1 for testnets
            expect(await tokenPriceGetter.getTokenExchangeRate(chainA, chainB)).to.equal(1);
            // stubbed result for non-testnet
            expect(await tokenPriceGetter.getTokenExchangeRate('ethereum', 'solanamainnet')).to.equal(priceA / priceB);
        });
    });
});
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