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22 lines
675 B
JavaScript
22 lines
675 B
JavaScript
import { MAX_INTEGER, MAX_ARRAY_LENGTH } from './utils';
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import toLength from '../src/toLength';
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describe('toLength', () => {
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it('should return a valid length', () => {
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expect(toLength(-1)).toBe(0);
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expect(toLength('1')).toBe(1);
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expect(toLength(1.1)).toBe(1);
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expect(toLength(MAX_INTEGER)).toBe(MAX_ARRAY_LENGTH);
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});
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it('should return `value` if a valid length', () => {
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expect(toLength(0)).toBe(0);
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expect(toLength(3)).toBe(3);
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expect(toLength(MAX_ARRAY_LENGTH)).toBe(MAX_ARRAY_LENGTH);
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});
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it('should convert `-0` to `0`', () => {
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expect(1 / toLength(-0)).toBe(Infinity);
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});
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});
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