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c5971b371a
* 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
30 lines
1.4 KiB
JavaScript
30 lines
1.4 KiB
JavaScript
const assert = require('assert')
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const math = require('../../../src/main')
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const multinomial = math.multinomial
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const _ = require('underscore')
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describe('multinomial', function () {
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it('should calculate the multinomial of an array of numbers', function () {
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assert.strictEqual(multinomial([1, 2, 1]), 12)
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assert.strictEqual(multinomial([4, 2, 1]), 105)
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assert.strictEqual(multinomial([4, 4]), 70)
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})
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it('should calculate the multinomial of n items taken k at a time with BigNumbers', function () {
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assert.strictEqual(_.isEqual(multinomial([math.bignumber(3), math.bignumber(4), math.bignumber(5)]), math.bignumber(27720)), true)
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assert.deepStrictEqual(multinomial([math.bignumber(10), math.bignumber(1), math.bignumber(2)]), math.bignumber(858))
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})
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it('should not work with non-integer and negative input', function () {
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assert.throws(function () { multinomial([0.5, 3]) }, TypeError)
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assert.throws(function () { multinomial([math.bignumber(3), math.bignumber(0.5)]) }, TypeError)
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assert.throws(function () { multinomial([math.bignumber(3.5), math.bignumber(-3)]) }, TypeError)
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assert.throws(function () { multinomial([math.bignumber(3.5), 1 / 3]) }, TypeError)
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})
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it('should not work with the wrong number or type of arguments', function () {
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assert.throws(function () { multinomial(5, 3, 2) })
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assert.throws(function () { multinomial(true, 'hello world') })
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})
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})
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