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
121 lines
4.3 KiB
JavaScript
121 lines
4.3 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 Complex = math.type.Complex
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const DenseMatrix = math.type.DenseMatrix
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const min = math.min
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describe('min', function () {
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it('should return the min between several numbers', function () {
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assert.strictEqual(min(5), 5)
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assert.strictEqual(min(1, 3), 1)
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assert.strictEqual(min(3, 1), 1)
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assert.strictEqual(min(1, 3, 5, -5, 2), -5)
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assert.strictEqual(min(0, 0, 0, 0), 0)
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})
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it('should return the min of strings by their numerical value', function () {
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assert.strictEqual(min('10', '3', '4', '2'), '2')
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})
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it('should return the min element from a vector', function () {
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assert.strictEqual(min([1, 3, 5, -5, 2]), -5)
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})
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it('should return the min of big numbers', function () {
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assert.deepStrictEqual(min(new BigNumber(1), new BigNumber(3), new BigNumber(5), new BigNumber(2), new BigNumber(-5)),
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new BigNumber(-5))
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})
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it('should return the min element from a vector array', function () {
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assert.strictEqual(min(new DenseMatrix([1, 3, 5, -5, 2])), -5)
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})
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it('should return the max element from a 2d matrix', function () {
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assert.deepStrictEqual(min([
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[1, 4, 7],
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[3, 0, 5],
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[-1, 9, 11]
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]), -1)
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assert.deepStrictEqual(min(new DenseMatrix([
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[1, 4, 7],
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[3, 0, 5],
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[-1, 9, 11]
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])), -1)
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})
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it('should return a reduced n-1 matrix from a n matrix', function () {
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assert.deepStrictEqual(min([
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[1, 2, 3],
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[4, 5, 6],
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[7, 8, 9]], 0), [1, 2, 3])
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assert.deepStrictEqual(min([
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[1, 2, 3],
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[4, 5, 6],
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[7, 8, 9]], 1), [1, 4, 7])
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assert.deepStrictEqual(min([
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[1, 2, 3],
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[6, 5, 4],
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[8, 7, 9]], 1), [1, 4, 7])
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assert.deepStrictEqual(min([
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[[1, 2], [3, 4], [5, 6]],
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[[6, 7], [8, 9], [10, 11]]], 2),
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[[1, 3, 5], [6, 8, 10]])
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assert.deepStrictEqual(min([
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[[1, 2], [3, 4], [5, 6]],
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[[6, 7], [8, 9], [10, 11]]], 1),
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[[1, 2], [6, 7]])
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assert.deepStrictEqual(min([
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[[1, 2], [3, 4], [5, 6]],
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[[6, 7], [8, 9], [10, 11]]], 0),
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[[1, 2], [3, 4], [5, 6]])
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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(min([NaN])))
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assert(isNaN(min([1, NaN])))
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assert(isNaN(min([NaN, 1])))
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assert(isNaN(min([1, 3, NaN])))
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assert(isNaN(min([NaN, NaN, NaN])))
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assert(isNaN(min(NaN, NaN, NaN)))
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})
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it('should throw an error when called multiple arrays or matrices', function () {
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assert.throws(function () { min([1, 2], [3, 4]) }, /Scalar values expected/)
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assert.throws(function () { min(math.matrix([1, 2]), math.matrix([3, 4])) }, /Scalar values expected/)
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})
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it('should throw an error if called a dimension out of range', function () {
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assert.throws(function () { min([1, 2, 3], -1) }, /IndexError: Index out of range \(-1 < 0\)/)
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assert.throws(function () { min([1, 2, 3], 1) }, /IndexError: Index out of range \(1 > 0\)/)
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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 () { min() })
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assert.throws(function () { min([], 2, 3) })
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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 () { min([]) })
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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 () { min(2, new Complex(2, 5)) }, /TypeError: Cannot calculate min, no ordering relation is defined for complex numbers/)
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assert.throws(function () { min(new Complex(2, 3), new Complex(2, 1)) }, /TypeError: Cannot calculate min, no ordering relation is defined for complex numbers/)
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assert.throws(function () { min([[2, undefined, 4]]) }, /TypeError: Cannot calculate min, unexpected type of argument/)
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assert.throws(function () { min([[2, new Date(), 4]]) }, /TypeError: Cannot calculate min, unexpected type of argument/)
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assert.throws(function () { min([2, null, 4]) }, /TypeError: Cannot calculate min, unexpected type of argument/)
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assert.throws(function () { min([[2, 5], [4, null], [1, 7]], 0) }, /TypeError: Cannot calculate min, unexpected type of argument/)
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})
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it('should LaTeX min', function () {
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const expression = math.parse('min(1,2,3)')
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assert.strictEqual(expression.toTex(), '\\min\\left(1,2,3\\right)')
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})
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})
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