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Charis
28 lines
577 B
TypeScript
28 lines
577 B
TypeScript
import { describe, expect, it } from 'vitest'
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import { isNonNullable } from './isNonNullable.js'
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describe(`isNonNullable`, () => {
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it.each([
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[null, false],
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[undefined, false],
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// void
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[(() => {})(), false],
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// Truthy
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[`string`, true],
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[1, true],
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[true, true],
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// Falsy
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[``, true],
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[NaN, true],
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[0, true],
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[0, true],
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[false, true],
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// Type coercion
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[[], true],
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[{}, true],
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])(`correctly matches against nullish values`, (val, expected) => {
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expect(isNonNullable(val)).toStrictEqual(expected)
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})
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})
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