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
72 lines
1.9 KiB
JavaScript
72 lines
1.9 KiB
JavaScript
// test nthRoots
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const assert = require('assert')
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const math = require('../../../src/main')
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const complex = math.complex
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const nthRoots = math.nthRoots
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describe('nthRoots', function () {
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it('should return an array of Complex roots', function () {
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const roots = nthRoots(complex('-1'), 6)
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const roots1 = [
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complex({ r: 1, phi: Math.PI / 6 }),
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complex(0, 1),
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complex({ r: 1, phi: (5 * Math.PI) / 6 }),
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complex({ r: 1, phi: (7 * Math.PI) / 6 }),
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complex(0, -1),
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complex({ r: 1, phi: (11 * Math.PI) / 6 })
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]
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roots.forEach(function (value, index, array) {
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assert.deepStrictEqual(value, roots1[index])
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})
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})
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it('should return the correct answer for Complex values', function () {
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const roots = nthRoots(complex(3, 4), 2)
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assert.deepStrictEqual(roots, [
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complex(2, 1),
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complex(-2.0000000000000004, -0.9999999999999999)
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])
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})
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const twos = [
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complex(2, 0),
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complex(0, 2),
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complex(-2, 0),
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complex(0, -2)
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]
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it('should return pure roots without artifacts', function () {
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const roots = nthRoots(complex('16'), 4)
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roots.forEach(function (value, index, array) {
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assert.deepStrictEqual(value, twos[index])
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})
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})
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it('should return roots for numeric arguments', function () {
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const roots = nthRoots(16, 4)
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roots.forEach(function (value, index, array) {
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assert.deepStrictEqual(value, twos[index])
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})
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})
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it('should return roots for string arguments', function () {
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const roots = nthRoots('16', 4)
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roots.forEach(function (value, index, array) {
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assert.deepStrictEqual(value, twos[index])
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})
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})
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it('should return zero exactly once', function () {
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const roots2 = nthRoots(0)
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const roots4 = nthRoots(0, 4)
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const roots8 = nthRoots(0, 8)
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assert.deepStrictEqual(roots2, [complex(0)])
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assert.deepStrictEqual(roots4, [complex(0)])
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assert.deepStrictEqual(roots8, [complex(0)])
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})
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})
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