mathjs/test/function/probability/seededrandom.test.js
greenkeeper[bot] c5971b371a Update standard to the latest version 🚀 (#1226)
* chore(package): update standard to version 12.0.0

* update to new lint version with --fix

I believe this mainly adds whitespace to `{}`'s.

* Replace assert.equal with assert.strictEqual

This breaks a lot of tests which I will endevour to fix in the next
commits.

* Fix most errors due to assert.strictEquals

Some instances of `strictEquals` are replaced by `deepEquals`.
`toString` has been used to make some string comparisions explicit.
Tests will still fail untill #1236 and #1237 are fixed.

* Fix assertion erros due to -0

With node 10, assert.strictEqual no longer considers `0 === -0`.
I missed these first time round as I was using node 8.

* Put toString correct side of bracket

I was converting the constructor to a string rather
than the result of the computation. Oops.

* Fixed #1236: quantileSeq has inconsistant return

* Update package-lock

* Fixed #1237: norm sometimes returning a complex number instead of number

* Fix cli tests

* More changes for standardjs, and fixes in unit tests
2018-09-08 16:33:58 +02:00

101 lines
3.2 KiB
JavaScript

const assert = require('assert')
const math = require('../../../src/main')
describe('seed', function () {
after(function () {
// Randomly seed random number generator
math.config({ randomSeed: null })
})
it('should generate same number with seed', function () {
math.config({ randomSeed: 'a' })
const first = math.random()
math.config({ randomSeed: 'a' })
const second = math.random()
assert.strictEqual(first, second)
})
it('should generate different number subsequent calls to seeded random', function () {
math.config({ randomSeed: 'a' })
const first = math.random()
const second = math.random()
assert.notStrictEqual(first, second)
})
it('calling with no parameters should unseed rng', function () {
math.config({ randomSeed: 'a' })
const firstA = math.random()
const secondA = math.random()
math.config({ randomSeed: 'a' })
const firstB = math.random()
math.config({ randomSeed: null })
const secondB = math.random()
assert.strictEqual(firstA, firstB)
assert.notStrictEqual(secondA, secondB)
})
it('should generate same matrix with seed', function () {
math.config({ randomSeed: 'a' })
const first = math.random([5, 5])
math.config({ randomSeed: 'a' })
const second = math.random([5, 5])
assert.strictEqual(math.deepEqual(first, second), true)
})
it('should generate different matrices subsequent calls to seeded random', function () {
math.config({ randomSeed: 'a' })
const first = math.random([5, 5])
const second = math.random([5, 5])
assert.strictEqual(math.deepEqual(first, second), false)
})
it('should pick same number with seed', function () {
const range = math.range(1, 1000)
math.config({ randomSeed: 'a' })
const first = math.pickRandom(range)
math.config({ randomSeed: 'a' })
const second = math.pickRandom(range)
assert.strictEqual(first, second)
})
it('should pick different number subsequent calls to seeded random', function () {
// In theory these might be the same but with 'a' as seed they are different and always will be
const range = math.range(1, 1000)
math.config({ randomSeed: 'a' })
const first = math.pickRandom(range)
const second = math.pickRandom(range)
assert.notStrictEqual(first, second)
})
it('should pick same int with seed', function () {
math.config({ randomSeed: 'a' })
const first = math.randomInt(1, 100)
math.config({ randomSeed: 'a' })
const second = math.randomInt(1, 100)
assert.strictEqual(first, second)
})
it('should pick different int subsequent calls to seeded random', function () {
math.config({ randomSeed: 'a' })
const first = math.randomInt(1, 100)
const second = math.randomInt(1, 100)
assert.notStrictEqual(first, second)
})
it('should work for number seeds', function () {
math.config({ randomSeed: 1 })
const first = math.random()
math.config({ randomSeed: 1 })
const second = math.random()
assert.strictEqual(first, second)
})
it('should work for object seeds', function () {
math.config({ randomSeed: { a: 1 } })
const first = math.random()
math.config({ randomSeed: { a: 1 } })
const second = math.random()
assert.strictEqual(first, second)
})
})