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Conflicts: HISTORY.md bower.json component.json dist/math.js dist/math.map dist/math.min.js lib/function/arithmetic/abs.js lib/function/probability/gamma.js lib/version.js package.json
84 lines
2.5 KiB
JavaScript
84 lines
2.5 KiB
JavaScript
var assert = require('assert');
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var math = require('../../../index');
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var BigNumber = math.type.BigNumber;
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var Complex = math.type.Complex;
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var DenseMatrix = math.type.DenseMatrix;
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var Unit = math.type.Unit;
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var sum = math.sum;
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describe('sum', function() {
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it('should return the sum of numbers', function() {
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assert.equal(sum(5), 5);
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assert.equal(sum(3,1), 4);
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assert.equal(sum(1,3), 4);
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assert.equal(sum(1,3,5,2), 11);
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assert.equal(sum(0,0,0,0), 0);
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});
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it('should return the sum of big numbers', function() {
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assert.deepEqual(sum(new BigNumber(1),new BigNumber(3),new BigNumber(5),new BigNumber(2)),
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new BigNumber(11));
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});
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it('should return the sum of strings (concatenates the strings)', function() {
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assert.equal(sum('A', 'C', 'D', 'B'), 'ACDB');
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assert.equal(sum([['A', 'C'], ['D', 'B']]), 'ACDB');
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});
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it('should return the sum of complex numbers', function() {
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assert.deepEqual(sum(new Complex(2,3), new Complex(-1,2)), new Complex(1,5));
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});
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it('should return the sum of mixed numbers and complex numbers', function() {
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assert.deepEqual(sum(2, new Complex(-1,3)), new Complex(1,3));
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});
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it('should return the sum from an array', function() {
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assert.equal(sum([1,3,5,2,-5]), 6);
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});
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it('should return the sum of units', function() {
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assert.deepEqual(sum([new Unit(5,'mm'), new Unit(10,'mm'), new Unit(15,'mm')]), new Unit(30,'mm'));
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});
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it('should return the sum from an 1d matrix', function() {
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assert.equal(sum(new DenseMatrix([1,3,5,2,-5])), 6);
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});
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it('should return the sum element from a 2d array', function() {
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assert.deepEqual(sum([
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[ 1, 4, 7],
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[ 3, 0, 5],
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[-1, 11, 9]
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]), 39);
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});
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it('should return the sum element from a 2d matrix', function() {
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assert.deepEqual(sum(new DenseMatrix([
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[ 1, 4, 7],
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[ 3, 0, 5],
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[-1, 11, 9]
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])), 39);
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});
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it('should throw an error if called with invalid number of arguments', function() {
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assert.throws(function() {sum()});
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assert.throws(function() {sum([], 2, 3)});
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});
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it('should throw an error if called with not yet supported argument dim', function() {
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assert.throws(function() {sum([], 2)}, /not yet supported/);
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});
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it('should throw an error if called with an empty array', function() {
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assert.throws(function() {sum([])});
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});
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it('should LaTeX sum', function () {
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var expression = math.parse('sum(1,2,3)');
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assert.equal(expression.toTex(), '\\mathrm{sum}\\left(1,2,3\\right)');
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});
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});
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