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
77 lines
2.9 KiB
JavaScript
77 lines
2.9 KiB
JavaScript
const assert = require('assert')
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const math = require('../../../src/main')
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const BigNumber = math.type.BigNumber
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const DenseMatrix = math.type.DenseMatrix
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const Complex = math.type.Complex
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const mad = math.mad
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describe('mad', function () {
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it('should return the median absolute deviation of numbers', function () {
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assert.strictEqual(mad(10), 0)
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assert.strictEqual(mad(4, 6, 8), 2)
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assert.strictEqual(mad(1, 10, 20, 30), 9.5)
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})
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it('should return the median absolute deviation of big numbers', function () {
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assert.deepStrictEqual(mad(new BigNumber(4), new BigNumber(6), new BigNumber(8)),
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new BigNumber(2))
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})
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it('should return the median absolute deviation from an array', function () {
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assert.strictEqual(mad([10]), 0)
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assert.strictEqual(mad([4, 6, 8]), 2)
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assert.strictEqual(mad([1, 10, 20, 30]), 9.5)
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})
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it('should return the median absolute deviation from an 1d matrix', function () {
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assert.strictEqual(mad(new DenseMatrix([10])), 0)
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assert.strictEqual(mad(new DenseMatrix([4, 6, 8])), 2)
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assert.strictEqual(mad(new DenseMatrix([1, 10, 20, 30])), 9.5)
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})
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it('should return the median absolute deviation element from a 2d array', function () {
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assert.deepStrictEqual(mad([
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[2, 4, 6],
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[1, 3, 5]
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]), 1.5)
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})
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it('should return the median absolute deviation element from a 2d matrix', function () {
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assert.deepStrictEqual(mad(new DenseMatrix([
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[2, 4, 6],
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[1, 3, 5]
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])), 1.5)
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})
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it('should return NaN if any of the inputs contains NaN', function () {
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assert(isNaN(mad([NaN])))
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assert(isNaN(mad([1, NaN])))
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assert(isNaN(mad([NaN, 1])))
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assert(isNaN(mad([1, 3, NaN])))
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assert(isNaN(mad([NaN, NaN, NaN])))
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assert(isNaN(mad(NaN, NaN)))
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})
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it('should throw an error if called with invalid number of arguments', function () {
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assert.throws(function () { mad() })
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})
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it('should throw an error if called with an empty array', function () {
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assert.throws(function () { mad([]) })
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})
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it('should throw an error if called with invalid type of arguments', function () {
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assert.throws(function () { mad(2, new Complex(2, 5)) }, /TypeError: Cannot calculate mad, no ordering relation is defined for complex numbers/)
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assert.throws(function () { mad(new Complex(2, 3), new Complex(2, 1)) }, /TypeError: Cannot calculate mad, no ordering relation is defined for complex numbers/)
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assert.throws(function () { mad([2, new Date(), 4]) }, /TypeError: Cannot calculate mad, unexpected type of argument/)
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assert.throws(function () { mad([2, null, 4]) }, /TypeError: Cannot calculate mad, unexpected type of argument/)
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assert.throws(function () { mad([[2, 5], [4, null], [1, 7]], 0) }, /TypeError: Cannot calculate mad, unexpected type of argument/)
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})
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it('should LaTeX mad', function () {
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const expression = math.parse('mad(1,2,3)')
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assert.strictEqual(expression.toTex(), '\\mathrm{mad}\\left(1,2,3\\right)')
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})
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})
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