pocomath/test/number/_all.mjs

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import assert from 'assert'
import math from '../../src/pocomath.mjs'
import PocomathInstance from '../../src/core/PocomathInstance.mjs'
import * as numberSqrt from '../../src/number/sqrt.mjs'
import * as complex from '../../src/complex/all.mjs'
import * as numbers from '../../src/number/all.mjs'
describe('number', () => {
it('supports sqrt', () => {
assert.strictEqual(math.sqrt(4), 2)
assert.strictEqual(math.sqrt(NaN), NaN)
assert.strictEqual(math.sqrt(2.25), 1.5)
assert.deepStrictEqual(math.sqrt(-9), math.complex(0, 3))
math.config.predictable = true
assert.strictEqual(math.sqrt(-9), NaN)
math.config.predictable = false
assert.deepStrictEqual(math.sqrt(-0.25), math.complex(0, 0.5))
})
it('supports sqrt by itself', () => {
const no = new PocomathInstance('Numbers Only')
no.install(numberSqrt)
assert.strictEqual(no.sqrt(2.56), 1.6)
assert.strictEqual(no.sqrt(-17), NaN)
no.install(complex)
no.install(numbers)
assert.deepStrictEqual(no.sqrt(-16), no.complex(0,4))
})
it('computes gcd', () => {
assert.strictEqual(math.gcd(15, 35), 5)
})
it('compares numbers', () => {
assert.ok(math.smaller(12,13.5))
assert.ok(math.equal(Infinity, Infinity))
assert.ok(math.largerEq(12.5, math.divide(25,2)))
})
it('Computes floor', () => {
assert.strictEqual(math.floor(7), 7)
assert.strictEqual(math.floor(6.99), 6)
assert.strictEqual(math.floor(1-1e-13), 1)
})
})