import * as chai from 'chai'; import * as _ from 'lodash'; import { constants } from './constants'; const expect = chai.expect; function _expectEitherErrorAsync(p: Promise, error1: string, error2: string): PromiseLike { return expect(p) .to.be.rejected() .then(e => { expect(e).to.satisfy( (err: Error) => _.includes(err.message, error1) || _.includes(err.message, error2), `expected promise to reject with error message that includes "${error1}" or "${error2}", but got: ` + `"${e.message}"\n`, ); }); } /** * Rejects if the given Promise does not reject with an error indicating * insufficient funds. * @param p the Promise which is expected to reject * @returns a new Promise which will reject if the conditions are not met and * otherwise resolve with no value. */ export function expectInsufficientFundsAsync(p: Promise): PromiseLike { return _expectEitherErrorAsync(p, 'insufficient funds', "sender doesn't have enough funds"); } /** * Rejects if the given Promise does not reject with a "revert" error or the * given otherError. * @param p the Promise which is expected to reject * @param otherError the other error which is accepted as a valid reject error. * @returns a new Promise which will reject if the conditions are not met and * otherwise resolve with no value. */ export function expectRevertOrOtherErrorAsync(p: Promise, otherError: string): PromiseLike { return _expectEitherErrorAsync(p, constants.REVERT, otherError); } /** * Rejects if the given Promise does not reject with a "revert" or "always * failing transaction" error. * @param p the Promise which is expected to reject * @returns a new Promise which will reject if the conditions are not met and * otherwise resolve with no value. */ export function expectRevertOrAlwaysFailingTransactionAsync(p: Promise): PromiseLike { return expectRevertOrOtherErrorAsync(p, 'always failing transaction'); } /** * Rejects if the given Promise does not reject with the given revert reason or "always * failing transaction" error. * @param p the Promise which is expected to reject * @param reason a specific revert reason * @returns a new Promise which will reject if the conditions are not met and * otherwise resolve with no value. */ export function expectRevertReasonOrAlwaysFailingTransactionAsync(p: Promise, reason: string): PromiseLike { return _expectEitherErrorAsync(p, 'always failing transaction', reason); } /** * Rejects if the given Promise does not reject with a "revert" or "Contract * call failed" error. * @param p the Promise which is expected to reject * @returns a new Promise which will reject if the conditions are not met and * otherwise resolve with no value. */ export function expectRevertOrContractCallFailedAsync(p: Promise): PromiseLike { return expectRevertOrOtherErrorAsync(p, 'Contract call failed'); }