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79 lines
2.6 KiB
JavaScript
79 lines
2.6 KiB
JavaScript
// test zeros
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import assert from 'assert'
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import math from '../../../../src/bundleAny'
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const zeros = math.zeros
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const matrix = math.matrix
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describe('zeros', function () {
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it('should create an empty matrix', function () {
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assert.deepStrictEqual(zeros(), matrix())
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assert.deepStrictEqual(zeros([]), [])
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assert.deepStrictEqual(zeros(matrix([])), matrix())
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})
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it('should create an empty matrix, sparse', function () {
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assert.deepStrictEqual(zeros('sparse'), matrix('sparse'))
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assert.deepStrictEqual(zeros([], 'sparse'), matrix([], 'sparse'))
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assert.deepStrictEqual(zeros(matrix([]), 'sparse'), matrix('sparse'))
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})
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it('should create a vector with zeros', function () {
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assert.deepStrictEqual(zeros(3), matrix([0, 0, 0]))
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assert.deepStrictEqual(zeros(matrix([4])), matrix([0, 0, 0, 0]))
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assert.deepStrictEqual(zeros([4]), [0, 0, 0, 0])
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assert.deepStrictEqual(zeros(0), matrix([]))
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})
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it('should create a matrix with bignumber zeros', function () {
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const zero = math.bignumber(0)
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const three = math.bignumber(3)
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assert.deepStrictEqual(zeros(three), matrix([zero, zero, zero]))
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assert.deepStrictEqual(zeros([three]), [zero, zero, zero])
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})
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it('should create a 2D matrix with zeros from an array', function () {
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assert.deepStrictEqual(zeros(2, 3), matrix([[0, 0, 0], [0, 0, 0]]))
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assert.deepStrictEqual(zeros(3, 2), matrix([[0, 0], [0, 0], [0, 0]]))
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assert.deepStrictEqual(zeros([3, 2]), [[0, 0], [0, 0], [0, 0]])
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})
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it('should create a matrix with zeros from a matrix', function () {
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assert.deepStrictEqual(zeros(matrix([3])), matrix([0, 0, 0]))
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assert.deepStrictEqual(zeros(matrix([3, 2])), matrix([[0, 0], [0, 0], [0, 0]]))
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})
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it('should create a 3D matrix with zeros', function () {
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const res = [
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[
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[0, 0, 0, 0],
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[0, 0, 0, 0],
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[0, 0, 0, 0]
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],
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[
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[0, 0, 0, 0],
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[0, 0, 0, 0],
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[0, 0, 0, 0]
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]
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]
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assert.deepStrictEqual(zeros(2, 3, 4), matrix(res))
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assert.deepStrictEqual(zeros(matrix([2, 3, 4])), matrix(res))
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assert.deepStrictEqual(zeros([2, 3, 4]), res)
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})
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// TODO: test setting `matrix`
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it('should create a matrix with zeros with the same size as original matrix', function () {
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const a = matrix([[1, 2, 3], [4, 5, 6]])
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assert.deepStrictEqual(zeros(math.size(a)).size(), a.size())
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})
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// TODO: test with invalid input
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it('should LaTeX zeros', function () {
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const expression = math.parse('zeros(2,3)')
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assert.strictEqual(expression.toTex(), '\\mathrm{zeros}\\left(2,3\\right)')
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})
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})
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