72 lines
2.8 KiB
JavaScript
72 lines
2.8 KiB
JavaScript
import assert from 'assert'
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import math from '../../src/pocomath.mjs'
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import PocomathInstance from '../../src/core/PocomathInstance.mjs'
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import * as bigintSqrt from '../../src/bigint/sqrt.mjs'
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import * as complex from '../../src/complex/all.mjs'
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import * as bigints from '../../src/bigint/all.mjs'
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describe('bigint', () => {
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it('can divide', () => {
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assert.strictEqual(math.divide(15n, 5n), 3n)
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assert.strictEqual(math.divide(14n, 5n), undefined)
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math.config.predictable = true
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assert.strictEqual(math.divide(14n, 5n), 2n)
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assert.strictEqual(math.divide(-14n, 5n), -3n)
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assert.strictEqual(math.divide(14n, -5n), -3n)
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assert.strictEqual(math.divide(-14n, -5n), 2n)
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math.config.predictable = false
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})
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it('supports sqrt', () => {
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assert.strictEqual(math.sqrt(0n), 0n)
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assert.strictEqual(math.sqrt(4n), 2n)
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assert.strictEqual(math.sqrt(5n), undefined)
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assert.strictEqual(
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math.sqrt(82120471531550314555681345949499512621827274120673745141541602816614526075010755373654280259022317599142038423759320355177481886719814621305828811322920076213800348341464996337890625n),
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9062034624274524065844376014975805577107171799890766992670739972241112960081909332275390625n)
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assert.deepStrictEqual(math.sqrt(-9n), math.complex(0n, 3n))
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assert.deepStrictEqual(
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math.sqrt(math.complex(5n, 12n)),
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math.complex(3n, 2n))
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assert.deepStrictEqual(math.sqrt(math.complex(1n, 0n)), 1n)
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assert.deepStrictEqual(math.sqrt(math.complex(0n, 1n)), undefined)
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math.config.predictable = true
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assert.strictEqual(math.sqrt(-9n), -9n)
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assert.deepStrictEqual(
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math.sqrt(math.complex(1n, 0n)), math.complex(1n, 0n))
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assert.deepStrictEqual(
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math.sqrt(math.complex(0n, 1n)), math.complex(0n, 0n))
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assert.deepStrictEqual(
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math.sqrt(math.complex(0n, 2n)), math.complex(1n, 1n))
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math.config.predictable = false
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assert.deepStrictEqual(math.sqrt(-1024n), math.complex(0n, 32n))
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})
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it('supports sqrt by itself', () => {
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const bo = new PocomathInstance('BigInts Only')
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bo.install(bigintSqrt)
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assert.strictEqual(bo.sqrt(256n), 16n)
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assert.strictEqual(bo.sqrt(-17n), undefined)
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bo.install(complex)
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bo.install(bigints)
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assert.deepStrictEqual(bo.sqrt(-3249n), bo.complex(0n, 57n))
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})
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it('computes gcd', () => {
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assert.strictEqual(math.gcd(105n, 70n), 35n)
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})
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it('computes lcm', () => {
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assert.strictEqual(math.lcm(105n, 70n), 210n)
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assert.strictEqual(math.lcm(15n, 60n), 60n)
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assert.strictEqual(math.lcm(0n, 17n), 0n)
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assert.strictEqual(math.lcm(20n, 0n), 0n)
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assert.strictEqual(math.lcm(0n, 0n), 0n)
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})
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it('allows floor as a no-op', () => {
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assert.strictEqual(math.floor(-333n), -333n)
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})
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})
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