import { HttpProvider } from 'ethjs'; import nock from 'nock'; import fetchEstimatedL1Fee from './fetchEstimatedL1Fee'; describe('fetchEstimatedL1Fee', () => { beforeAll(() => { global.ethereumProvider = new HttpProvider( 'https://optimism-mainnet.public.blastapi.io', ); nock.disableNetConnect(); }); it('returns an expected gasFee', async () => { const expectedGasFeeResult = '377b09ef6660'; nock('https://optimism-mainnet.public.blastapi.io:443', { encodedQueryParams: true, }) .post('/', { method: 'eth_call', params: [ { to: '0x420000000000000000000000000000000000000f', data: '0x49948e0e00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000023e280830f424082cf0894e7d522230eff653bb0a9b4385f0be0815420dd9880808080800000000000000000000000000000000000000000000000000000000000', }, 'latest', ], id: 1, jsonrpc: '2.0', }) .reply(200, { jsonrpc: '2.0', id: 1, result: `0x0000000000000000000000000000000000000000000000000000${expectedGasFeeResult}`, }); const gasFee = await fetchEstimatedL1Fee('10', { txParams: { gasPrice: '0xf4240', gas: '0xcf08', to: '0xe7d522230eff653bb0a9b4385f0be0815420dd98', value: '0x0', from: '0x806627172af48bd5b0765d3449a7def80d6576ff', data: null, type: '0x0', }, }); expect(gasFee).toStrictEqual(`0x${expectedGasFeeResult}`); }); });