20 lines
467 B
TypeScript
20 lines
467 B
TypeScript
// Copyright 2017-2019 @polkadot/util authors & contributors
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// This software may be modified and distributed under the terms
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// of the Apache-2.0 license. See the LICENSE file for details.
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import { isNull } from './index';
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describe('isNull', () => {
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it('returns true when a null value', () => {
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expect(
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isNull(null)
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).toEqual(true);
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});
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it('returns false on non-null values', () => {
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expect(
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isNull()
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).toEqual(false);
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});
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});
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