mirror of
https://github.com/josdejong/mathjs.git
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46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
import assert from 'assert'
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import { isBoolean, isNumber, isString } from '../../src/utils/is'
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describe('is', function () {
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it('isBoolean', function () {
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assert.strictEqual(isBoolean(true), true)
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assert.strictEqual(isBoolean(false), true)
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assert.strictEqual(isBoolean(Boolean(false)), true)
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assert.strictEqual(isBoolean('hi'), false)
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assert.strictEqual(isBoolean(23), false)
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assert.strictEqual(isBoolean([]), false)
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assert.strictEqual(isBoolean({}), false)
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assert.strictEqual(isBoolean(new Date()), false)
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})
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it('isString', function () {
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assert.strictEqual(isString('hi'), true)
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assert.strictEqual(isString(String('hi')), true)
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assert.strictEqual(isString(23), false)
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assert.strictEqual(isString(true), false)
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assert.strictEqual(isString(new Date()), false)
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})
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it('isNumber', function () {
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assert.strictEqual(isNumber(1), true)
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assert.strictEqual(isNumber(2e+3), true)
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assert.strictEqual(isNumber(Number(2.3)), true)
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assert.strictEqual(isNumber(NaN), true)
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assert.strictEqual(isNumber(-23), true)
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assert.strictEqual(isNumber(parseFloat('123')), true)
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assert.strictEqual(isNumber('23'), false)
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assert.strictEqual(isNumber('str'), false)
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assert.strictEqual(isNumber(new Date()), false)
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assert.strictEqual(isNumber({}), false)
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assert.strictEqual(isNumber([]), false)
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assert.strictEqual(isNumber(/regexp/), false)
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assert.strictEqual(isNumber(true), false)
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assert.strictEqual(isNumber(false), false)
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assert.strictEqual(isNumber(null), false)
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assert.strictEqual(isNumber(undefined), false)
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assert.strictEqual(isNumber(), false)
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})
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})
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