greenkeeper[bot] c5971b371a Update standard to the latest version 🚀 (#1226)
* 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
2018-09-08 16:33:58 +02:00

44 lines
1.7 KiB
JavaScript

const assert = require('assert')
const math = require('../../../src/main')
describe('re', function () {
it('should return the real part of a complex number', function () {
assert.strictEqual(math.re(math.complex(2, 3)), 2)
assert.strictEqual(math.re(math.complex(-2, -3)), -2)
assert.strictEqual(math.re(math.i), 0)
})
it('should return the real part of a real number', function () {
assert.strictEqual(math.re(2), 2)
})
it('should return the real part of a big number', function () {
assert.deepStrictEqual(math.re(math.bignumber(2)), math.bignumber(2))
})
it('should return the real part of a boolean', function () {
assert.strictEqual(math.re(true), 1)
assert.strictEqual(math.re(false), 0)
})
it('should return the real part for each element in a matrix', function () {
assert.deepStrictEqual(math.re([2, math.complex('3-6i')]), [2, 3])
assert.deepStrictEqual(math.re(math.matrix([2, math.complex('3-6i')])).valueOf(), [2, 3])
})
it('should throw an error when called with an unsupported type of argument', function () {
assert.throws(function () { math.re(new Date()) }, /TypeError: Unexpected type of argument/)
assert.throws(function () { math.re(math.unit('5cm')) }, /TypeError: Unexpected type of argument/)
})
it('should throw an error in case of invalid number of arguments', function () {
assert.throws(function () { math.re() }, /TypeError: Too few arguments/)
assert.throws(function () { math.re(1, 2) }, /TypeError: Too many arguments/)
})
it('should LaTeX re', function () {
const expression = math.parse('re(1+i)')
assert.strictEqual(expression.toTex(), '\\Re\\left\\lbrace1+ i\\right\\rbrace')
})
})