mirror of
https://github.com/josdejong/mathjs.git
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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
99 lines
2.8 KiB
JavaScript
99 lines
2.8 KiB
JavaScript
const assert = require('assert')
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const functionUtils = require('../../src/utils/function')
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describe('util.function', function () {
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describe('memoize', function () {
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it('should memoize a function with one argument', function () {
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const f = function (x) { return x * x }
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const m = functionUtils.memoize(f)
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assert.strictEqual(m(2), 4)
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assert.strictEqual(m(3), 9)
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})
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it('should memoize a function with two arguments', function () {
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const f = function (x, y) { return x * y }
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const m = functionUtils.memoize(f)
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assert.strictEqual(m(2, 3), 6)
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// hash should differ
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assert.strictEqual(m(1, 23), 23)
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assert.strictEqual(m(12, 3), 36)
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})
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it('should memoize a function with objects as arguments', function () {
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const f = function (obj) { return obj.x * obj.y }
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const m = functionUtils.memoize(f)
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assert.strictEqual(m({ x: 2, y: 3 }), 6)
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assert.deepStrictEqual(Object.keys(m.cache), ['[{"x":2,"y":3}]'])
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assert.strictEqual(m.cache['[{"x":2,"y":3}]'], 6)
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})
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it('should memoize a function with a custom hashIt function', function () {
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const f = function (obj) { return obj.id }
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const hashIt = function (args) {
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return 'id:' + args[0].id
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}
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const m = functionUtils.memoize(f, hashIt)
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assert.strictEqual(m({ id: 2 }), 2)
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assert.deepStrictEqual(Object.keys(m.cache), ['id:2'])
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assert.strictEqual(m.cache['id:2'], 2)
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})
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it('should really return the cached result', function () {
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let a = 2
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const f = function (x) { return a } // trick: no pure function
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const m = functionUtils.memoize(f)
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assert.strictEqual(m(4), 2)
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a = 3
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assert.strictEqual(m(4), 2)
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})
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})
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describe('maxArgumentCount', function () {
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it('should calculate the max argument count of a typed function', function () {
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const a = function () {}
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a.signatures = {
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'number, number': function () {},
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'number': function () {}
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}
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assert.strictEqual(functionUtils.maxArgumentCount(a), 2)
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const b = function () {}
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b.signatures = {
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'number': function () {},
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'number, number': function () {}
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}
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assert.strictEqual(functionUtils.maxArgumentCount(b), 2)
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const c = function () {}
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c.signatures = {
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'number': function () {},
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'BigNumber': function () {}
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}
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assert.strictEqual(functionUtils.maxArgumentCount(c), 1)
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const d = function () {}
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d.signatures = {
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'number,number': function () {},
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'number': function () {},
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'number,any,number': function () {}
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}
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assert.strictEqual(functionUtils.maxArgumentCount(d), 3)
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})
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it('should return -1 for regular functions', function () {
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assert.strictEqual(functionUtils.maxArgumentCount(function () {}), -1)
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})
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})
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})
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