25 lines
550 B
TypeScript
25 lines
550 B
TypeScript
// Copyright 2017-2022 @polkadot/util authors & contributors
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// SPDX-License-Identifier: Apache-2.0
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import { isBuffer } from '.';
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describe('isBuffer', (): void => {
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it('returns true when a Buffer value', (): void => {
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expect(
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isBuffer(Buffer.from([]))
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).toEqual(true);
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});
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it('returns false on non-Buffer values (number)', (): void => {
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expect(
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isBuffer(123)
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).toEqual(false);
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});
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it('returns false on non-Buffer values (null)', (): void => {
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expect(
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isBuffer(null)
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).toEqual(false);
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});
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});
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