mathjs/test/unit-tests/function/bitwise/rightLogShift.test.js
Jos de Jong 6f00715754
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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
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142 lines
7.3 KiB
JavaScript

// test rightLogShift
import assert from 'assert'
import math from '../../../../src/defaultInstance.js'
const matrix = math.matrix
const sparse = math.sparse
const rightLogShift = math.rightLogShift
describe('rightLogShift', function () {
it('should right logically shift a number by a given amount', function () {
assert.strictEqual(rightLogShift(0, 1000), 0)
assert.strictEqual(rightLogShift(2, 0), 2)
assert.strictEqual(rightLogShift(12, 3), 1)
assert.strictEqual(rightLogShift(32, 4), 2)
assert.strictEqual(rightLogShift(-1, 1000), 16777215)
assert.strictEqual(rightLogShift(-12, 2), 1073741821)
assert.strictEqual(rightLogShift(122, 3), 15)
assert.strictEqual(rightLogShift(-13, 2), 1073741820)
assert.strictEqual(rightLogShift(-13, 3), 536870910)
})
it('should right logically shift booleans by a boolean amount', function () {
assert.strictEqual(rightLogShift(true, true), 0)
assert.strictEqual(rightLogShift(true, false), 1)
assert.strictEqual(rightLogShift(false, true), 0)
assert.strictEqual(rightLogShift(false, false), 0)
})
it('should right logically shift with a mix of numbers and booleans', function () {
assert.strictEqual(rightLogShift(2, true), 1)
assert.strictEqual(rightLogShift(2, false), 2)
assert.strictEqual(rightLogShift(true, 0), 1)
assert.strictEqual(rightLogShift(true, 1), 0)
assert.strictEqual(rightLogShift(false, 2), 0)
})
it('should throw an error if the parameters are not integers', function () {
assert.throws(function () {
rightLogShift(1.1, 1)
}, /Integers expected in function rightLogShift/)
assert.throws(function () {
rightLogShift(1, 1.1)
}, /Integers expected in function rightLogShift/)
assert.throws(function () {
rightLogShift(1.1, 1.1)
}, /Integers expected in function rightLogShift/)
})
it('should throw an error if used with a unit', function () {
assert.throws(function () { rightLogShift(math.unit('5cm'), 2) }, /TypeError: Unexpected type of argument/)
assert.throws(function () { rightLogShift(2, math.unit('5cm')) }, /TypeError: Unexpected type of argument/)
assert.throws(function () { rightLogShift(math.unit('2cm'), math.unit('5cm')) }, /TypeError: Unexpected type of argument/)
})
describe('Array', function () {
it('should right arithmetically shift array - scalar', function () {
assert.deepStrictEqual(rightLogShift([[4, 8], [8, 0]], 2), [[1, 2], [2, 0]])
assert.deepStrictEqual(rightLogShift([[4, 8], [12, 16]], 2), [[1, 2], [3, 4]])
assert.deepStrictEqual(rightLogShift(2, [[1, 2], [8, 0]]), [[1, 0], [0, 2]])
})
it('should right arithmetically shift array - array', function () {
assert.deepStrictEqual(rightLogShift([[1, 2], [8, 0]], [[4, 8], [32, 0]]), [[0, 0], [8, 0]])
assert.deepStrictEqual(rightLogShift([[4, 8], [32, 0]], [[1, 2], [8, 0]]), [[2, 2], [0, 0]])
})
it('should right arithmetically shift array - dense matrix', function () {
assert.deepStrictEqual(rightLogShift([[1, 2], [8, 0]], matrix([[4, 8], [32, 0]])), matrix([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift([[4, 8], [32, 0]], matrix([[1, 2], [8, 0]])), matrix([[2, 2], [0, 0]]))
})
it('should right arithmetically shift array - sparse matrix', function () {
assert.deepStrictEqual(rightLogShift([[1, 2], [8, 0]], sparse([[4, 8], [32, 0]])), matrix([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift([[4, 8], [32, 0]], sparse([[1, 2], [8, 0]])), matrix([[2, 2], [0, 0]]))
})
})
describe('DenseMatrix', function () {
it('should right arithmetically shift dense matrix - scalar', function () {
assert.deepStrictEqual(rightLogShift(matrix([[4, 8], [8, 0]]), 2), matrix([[1, 2], [2, 0]]))
assert.deepStrictEqual(rightLogShift(matrix([[4, 8], [12, 16]]), 2), matrix([[1, 2], [3, 4]]))
assert.deepStrictEqual(rightLogShift(2, matrix([[1, 2], [8, 0]])), matrix([[1, 0], [0, 2]]))
})
it('should right arithmetically shift dense matrix - array', function () {
assert.deepStrictEqual(rightLogShift(matrix([[1, 2], [8, 0]]), [[4, 8], [32, 0]]), matrix([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift(matrix([[4, 8], [32, 0]]), [[1, 2], [8, 0]]), matrix([[2, 2], [0, 0]]))
})
it('should right arithmetically shift dense matrix - dense matrix', function () {
assert.deepStrictEqual(rightLogShift(matrix([[1, 2], [8, 0]]), matrix([[4, 8], [32, 0]])), matrix([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift(matrix([[4, 8], [32, 0]]), matrix([[1, 2], [8, 0]])), matrix([[2, 2], [0, 0]]))
})
it('should right arithmetically shift dense matrix - sparse matrix', function () {
assert.deepStrictEqual(rightLogShift(matrix([[1, 2], [8, 0]]), sparse([[4, 8], [32, 0]])), matrix([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift(matrix([[4, 8], [32, 0]]), sparse([[1, 2], [8, 0]])), matrix([[2, 2], [0, 0]]))
})
})
describe('SparseMatrix', function () {
it('should right arithmetically shift sparse matrix - scalar', function () {
assert.deepStrictEqual(rightLogShift(sparse([[4, 8], [8, 0]]), 2), sparse([[1, 2], [2, 0]]))
assert.deepStrictEqual(rightLogShift(sparse([[4, 8], [12, 16]]), 2), sparse([[1, 2], [3, 4]]))
assert.deepStrictEqual(rightLogShift(2, sparse([[1, 2], [8, 0]])), matrix([[1, 0], [0, 2]]))
})
it('should right arithmetically shift sparse matrix - array', function () {
assert.deepStrictEqual(rightLogShift(sparse([[1, 2], [8, 0]]), [[4, 8], [32, 0]]), sparse([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift(sparse([[4, 8], [32, 0]]), [[1, 2], [8, 0]]), sparse([[2, 2], [0, 0]]))
})
it('should right arithmetically shift sparse matrix - dense matrix', function () {
assert.deepStrictEqual(rightLogShift(sparse([[1, 2], [8, 0]]), matrix([[4, 8], [32, 0]])), sparse([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift(sparse([[4, 8], [32, 0]]), matrix([[1, 2], [8, 0]])), sparse([[2, 2], [0, 0]]))
})
it('should right arithmetically shift sparse matrix - sparse matrix', function () {
assert.deepStrictEqual(rightLogShift(sparse([[1, 2], [8, 0]]), sparse([[4, 8], [32, 0]])), sparse([[0, 0], [8, 0]]))
assert.deepStrictEqual(rightLogShift(sparse([[4, 8], [32, 0]]), sparse([[1, 2], [8, 0]])), sparse([[2, 2], [0, 0]]))
})
})
it('should throw an error if used with wrong number of arguments', function () {
assert.throws(function () { rightLogShift(1) }, /TypeError: Too few arguments/)
assert.throws(function () { rightLogShift(1, 2, 3) }, /TypeError: Too many arguments/)
})
it('should throw an error in case of invalid type of arguments', function () {
assert.throws(function () { rightLogShift(2, null) }, /TypeError: Unexpected type of argument/)
assert.throws(function () { rightLogShift(new Date(), true) }, /TypeError: Unexpected type of argument/)
assert.throws(function () { rightLogShift(true, new Date()) }, /TypeError: Unexpected type of argument/)
assert.throws(function () { rightLogShift(true, undefined) }, /TypeError: Unexpected type of argument/)
assert.throws(function () { rightLogShift(undefined, true) }, /TypeError: Unexpected type of argument/)
})
it('should LaTeX rightLogShift', function () {
const expression = math.parse('rightLogShift(1,2)')
assert.strictEqual(expression.toTex(), '\\left(1>>>2\\right)')
})
})