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76 lines
2.2 KiB
JavaScript
76 lines
2.2 KiB
JavaScript
var assert = require('assert'),
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math = require('../../../index')(),
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bignumber = math.bignumber,
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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(bignumber(1),bignumber(3),bignumber(5),bignumber(2)),
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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(math.complex(2,3), math.complex(-1,2)), math.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, math.complex(-1,3)), math.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([math.unit('5mm'), math.unit('10mm'), math.unit('15mm')]), math.unit('30mm'));
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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(math.matrix([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(math.matrix([
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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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});
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