packages/util/src/is/toBn.spec.ts
// Copyright 2017-2024 @polkadot/util authors & contributors
// SPDX-License-Identifier: Apache-2.0
/// <reference types="@polkadot/dev-test/globals.d.ts" />
import BN from 'bn.js';
import { isToBn } from './index.js';
describe('isToBn', (): void => {
it('is false on no value', (): void => {
expect(isToBn()).toEqual(false);
});
it('is false on non-compact value', (): void => {
expect(isToBn(123)).toEqual(false);
});
it('is true when compact-like signature is found', (): void => {
expect(isToBn({
toBigInt: () => BigInt(1),
toBn: () => new BN(1)
})).toEqual(true);
});
});