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import * as chai from 'chai';
import * as _ from 'lodash';
import { constants } from './constants';
const expect = chai.expect;
function _expectEitherError<T>(p: Promise<T>, error1: string, error2: string): PromiseLike<void> {
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 expectInsufficientFunds<T>(p: Promise<T>): PromiseLike<void> {
return _expectEitherError(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 expectRevertOrOtherError<T>(p: Promise<T>, otherError: string): PromiseLike<void> {
return _expectEitherError(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 expectRevertOrAlwaysFailingTransaction<T>(p: Promise<T>): PromiseLike<void> {
return expectRevertOrOtherError(p, 'always failing transaction');
}
/**
* 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 expectRevertOrContractCallFailed<T>(p: Promise<T>): PromiseLike<void> {
return expectRevertOrOtherError<T>(p, 'Contract call failed');
}
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