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
74 lines
2.7 KiB
JavaScript
74 lines
2.7 KiB
JavaScript
const assert = require('assert')
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const approx = require('../../../tools/approx')
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const math = require('../../../src/main')
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const arg = math.arg
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describe('arg', function () {
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it('should compute the argument of a boolean', function () {
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assert.strictEqual(arg(true), 0)
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assert.strictEqual(arg(false), 0)
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})
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it('should compute the argument of a number', function () {
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assert.strictEqual(arg(1), 0)
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assert.strictEqual(arg(2), 0)
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assert.strictEqual(arg(0), 0)
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approx.equal(arg(-2), 3.141592653589793)
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})
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it('should compute the argument of a bignumber', function () {
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assert.deepStrictEqual(arg(math.bignumber(1)), math.bignumber(0))
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assert.deepStrictEqual(arg(math.bignumber(-2)),
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math.bignumber('3.141592653589793238462643383279502884197169399375105820974944592'))
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})
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it('should compute the argument of a complex number correctly', function () {
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assert.strictEqual(arg(math.complex('0')) / math.pi, 0)
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assert.strictEqual(arg(math.complex('1 + 0i')) / math.pi, 0)
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assert.strictEqual(arg(math.complex('1 + i')) / math.pi, 0.25)
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assert.strictEqual(arg(math.complex('0 + i')) / math.pi, 0.5)
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assert.strictEqual(arg(math.complex('-1 + i')) / math.pi, 0.75)
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assert.strictEqual(arg(math.complex('-1 + 0i')) / math.pi, 1)
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assert.strictEqual(arg(math.complex('-1 - i')) / math.pi, -0.75)
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assert.strictEqual(arg(math.complex('0 - i')) / math.pi, -0.5)
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assert.strictEqual(arg(math.complex('1 - i')) / math.pi, -0.25)
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assert.strictEqual(arg(math.i) / math.pi, 0.5)
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})
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it('should calculate the argument for each element in a matrix', function () {
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assert.deepStrictEqual(math.divide(arg([
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math.i, math.unaryMinus(math.i), math.add(1, math.i)
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]), math.pi), [
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0.5, -0.5, 0.25
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])
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assert.deepStrictEqual(math.matrix(math.divide(arg([
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math.i, math.unaryMinus(math.i), math.add(1, math.i)
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]), math.pi)).valueOf(), [
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0.5, -0.5, 0.25
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])
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})
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it('should compute the argument of a real number correctly', function () {
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assert.strictEqual(arg(2) / math.pi, 0)
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assert.strictEqual(arg(-2) / math.pi, 1)
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})
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it('should throw an error if used with a string', function () {
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assert.throws(function () { arg('string') })
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})
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it('should throw an error if used with a unit', function () {
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assert.throws(function () { arg(math.unit('5cm')) })
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})
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it('should throw an error in case of invalid number of arguments', function () {
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assert.throws(function () { arg() }, /TypeError: Too few arguments/)
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assert.throws(function () { arg(1, 2) }, /TypeError: Too many arguments/)
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})
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it('should LaTeX arg', function () {
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const expression = math.parse('arg(1+i)')
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assert.strictEqual(expression.toTex(), '\\arg\\left(1+ i\\right)')
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})
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})
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