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Conflicts: HISTORY.md bower.json component.json dist/math.js dist/math.map dist/math.min.js docs/reference/units.md lib/version.js package.json test/function/construction/chain.test.js test/function/matrix/det.test.js test/function/matrix/transpose.test.js test/function/utils/import.test.js
89 lines
3.2 KiB
JavaScript
89 lines
3.2 KiB
JavaScript
var assert = require('assert'),
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error = require('../../../lib/error/index'),
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math = require('../../../index'),
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lcm = math.lcm;
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describe('lcm', function() {
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it('should find the lowest common multiple of two or more numbers', function() {
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assert.equal(lcm(4, 6), 12);
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assert.equal(lcm(4, -6), 12);
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assert.equal(lcm(6, 4), 12);
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assert.equal(lcm(-6, 4), 12);
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assert.equal(lcm(-6, -4), 12);
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assert.equal(lcm(21, 6), 42);
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assert.equal(lcm(3, -4, 24), 24);
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assert.throws(function () {lcm(1); }, /TypeError: Too few arguments/);
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});
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it ('should calculate lcm for edge cases around zero', function () {
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assert.equal(lcm(3, 0), 0);
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assert.equal(lcm(-3, 0), 0);
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assert.equal(lcm(0, 3), 0);
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assert.equal(lcm(0, -3), 0);
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assert.equal(lcm(0, 0), 0);
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assert.equal(lcm(1, 1), 1);
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assert.equal(lcm(1, 0), 0);
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assert.equal(lcm(1, -1), 1);
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assert.equal(lcm(-1, 1), 1);
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assert.equal(lcm(-1, 0), 0);
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assert.equal(lcm(-1, -1), 1);
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assert.equal(lcm(0, 1), 0);
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assert.equal(lcm(0, -1), 0);
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assert.equal(lcm(0, 0), 0);
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});
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it('should calculate lcm for BigNumbers', function() {
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assert.deepEqual(lcm(math.bignumber(4), math.bignumber(6)), math.bignumber(12));
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assert.deepEqual(lcm(math.bignumber(4), math.bignumber(6)), math.bignumber(12));
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});
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it('should calculate lcm for mixed BigNumbers and Numbers', function() {
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assert.deepEqual(lcm(math.bignumber(4), 6), math.bignumber(12));
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assert.deepEqual(lcm(4, math.bignumber(6)), math.bignumber(12));
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});
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it('should find the lowest common multiple of booleans', function() {
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assert.equal(lcm(true, true), 1);
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assert.equal(lcm(true, false), 0);
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assert.equal(lcm(false, true), 0);
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assert.equal(lcm(false, false), 0);
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});
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it('should find the lowest common multiple of numbers and null', function () {
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assert.equal(lcm(1, null), 0);
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assert.equal(lcm(null, 1), 0);
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assert.equal(lcm(null, null), 0);
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});
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it('should throw an error for non-integer numbers', function() {
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assert.throws(function () {lcm(2, 4.1); }, /Parameters in function lcm must be integer numbers/);
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assert.throws(function () {lcm(2.3, 4); }, /Parameters in function lcm must be integer numbers/);
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})
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it('should throw an error with complex numbers', function() {
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assert.throws(function () {lcm(math.complex(1,3),2); }, TypeError, 'Function lcm(complex, number) not supported');
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});
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it('should throw an error with strings', function() {
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assert.throws(function () {lcm('a', 2); }, TypeError, 'Function lcm(string, number) not supported');
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assert.throws(function () {lcm(2, 'a'); }, TypeError, 'Function lcm(number, string) not supported');
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});
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it('should throw an error with units', function() {
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assert.throws(function () { lcm(math.unit('5cm'), 2); }, TypeError, 'Function lcm(unit, number) not supported');
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});
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it('should perform element-wise lcm on two or more matrices of the same size', function() {
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assert.deepEqual(lcm([5,2,3], [25,3,6]), [25, 6, 6]);
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});
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it('should LaTeX lcm', function () {
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var expression = math.parse('lcm(2,3)');
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assert.equal(expression.toTex(), '\\mathrm{lcm}\\left({2},{3}\\right)');
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});
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});
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