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103 lines
2.7 KiB
JavaScript
103 lines
2.7 KiB
JavaScript
import assert from 'assert'
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import math from '../../../../src/defaultInstance.js'
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describe('clone', function () {
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it('should clone a boolean', function () {
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assert.strictEqual(math.clone(true), true)
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assert.strictEqual(math.clone(false), false)
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})
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it('should clone null', function () {
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assert.strictEqual(math.clone(null), null)
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})
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it('should clone a number', function () {
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let a = 1
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const b = math.clone(a)
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a = 2
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assert.strictEqual(a, 2)
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assert.strictEqual(b, 1)
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})
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it('should clone a bigint', function () {
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let a = 1n
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const b = math.clone(a)
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a = 2n
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assert.strictEqual(a, 2n)
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assert.strictEqual(b, 1n)
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})
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it('should throw an error on wrong number of arguments', function () {
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assert.throws(function () { math.clone() }, /TypeError: Too few arguments/)
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assert.throws(function () { math.clone(2, 4) }, /TypeError: Too many arguments/)
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})
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it('should clone a bignumber', function () {
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const a = math.bignumber('2.3e500')
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const b = math.clone(a)
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assert.deepStrictEqual(a, b)
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})
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it('should clone a string', function () {
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let a = 'hello world'
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const b = math.clone(a)
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a = 'bye!'
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assert.strictEqual(a, 'bye!')
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assert.strictEqual(b, 'hello world')
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})
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it('should clone a complex number', function () {
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const a = math.complex(2, 3)
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const b = math.clone(a)
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assert.notStrictEqual(a, b)
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a.re = 5
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assert.strictEqual(a.toString(), '5 + 3i')
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assert.strictEqual(b.toString(), '2 + 3i')
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})
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it('should clone a unit', function () {
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const a = math.unit('5mm')
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const b = math.clone(a)
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a.value = 10
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assert.strictEqual(a.toString(), '10 m')
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assert.strictEqual(b.toString(), '5 mm')
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})
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it('should clone a fraction', function () {
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const a = math.fraction(2, 3)
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const b = math.clone(a)
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assert.deepStrictEqual(a, b)
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})
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it('should clone an array', function () {
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const a = [1, 2, [3, 4]]
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const b = math.clone(a)
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a[2][1] = 5
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assert.strictEqual(b[2][1], 4)
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})
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it('should clone a matrix', function () {
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let a = math.matrix([[1, 2], [3, 4]])
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let b = math.clone(a)
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a.valueOf()[0][0] = 5
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assert.strictEqual(b.valueOf()[0][0], 1)
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a = math.matrix([1, 2, math.complex(2, 3), 4])
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b = math.clone(a)
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a.valueOf()[2].re = 5
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assert.strictEqual(b.valueOf()[2].re, 2)
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})
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it('should clone a function', function () {
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const f = () => 42
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const a = math.matrix([f])
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const b = math.clone(a)
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assert.strictEqual(b.get([0]), f)
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})
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it('should LaTeX clone', function () {
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const expression = math.parse('clone(1)')
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assert.strictEqual(expression.toTex(), '\\mathrm{clone}\\left(1\\right)')
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})
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})
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