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95 lines
3.1 KiB
JavaScript
95 lines
3.1 KiB
JavaScript
// test add
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var assert = require('assert'),
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approx = require('../../../tools/approx'),
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math = require('../../../index')(),
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bignumber = math.bignumber,
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add = math.add;
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describe('add', function() {
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it('should add two numbers', function() {
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assert.equal(add(2, 3), 5);
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assert.equal(add(-2, 3), 1);
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assert.equal(add(2, -3), -1);
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assert.equal(add(-5, -3), -8);
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});
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it('should add booleans', function() {
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assert.equal(add(true, true), 2);
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assert.equal(add(true, false), 1);
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assert.equal(add(false, true), 1);
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assert.equal(add(false, false), 0);
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});
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it('should add mixed numbers and booleans', function() {
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assert.equal(add(2, true), 3);
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assert.equal(add(2, false), 2);
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assert.equal(add(true, 2), 3);
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assert.equal(add(false, 2), 2);
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});
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it('should add bignumbers', function() {
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assert.deepEqual(add(bignumber(0.1), bignumber(0.2)), bignumber(0.3));
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assert.deepEqual(add(bignumber('2e5001'), bignumber('3e5000')), bignumber('2.3e5001'));
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assert.deepEqual(add(bignumber('9999999999999999999'), bignumber('1')), bignumber('1e19'));
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});
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it('should add mixed numbers and bignumbers', function() {
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assert.deepEqual(add(bignumber(0.1), 0.2), bignumber(0.3));
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assert.deepEqual(add(0.1, bignumber(0.2)), bignumber(0.3));
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approx.equal(add(1/3, bignumber(1)), 1.333333333333333);
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approx.equal(add(bignumber(1), 1/3), 1.333333333333333);
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});
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it('should add mixed booleans and bignumbers', function() {
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assert.deepEqual(add(bignumber(0.1), true), bignumber(1.1));
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assert.deepEqual(add(false, bignumber(0.2)), bignumber(0.2));
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});
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it('should add two complex numbers', function() {
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assert.equal(add(math.complex(3, -4), math.complex(8, 2)), '11 - 2i');
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assert.equal(add(math.complex(3, -4), 10), '13 - 4i');
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assert.equal(add(10, math.complex(3, -4)), '13 - 4i');
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});
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it('should add two measures of the same unit', function() {
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approx.deepEqual(add(math.unit(5, 'km'), math.unit(100, 'mile')), math.unit(165.93, 'km'));
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});
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it('should throw an error for two measures of different units', function() {
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assert.throws(function () {
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add(math.unit(5, 'km'), math.unit(100, 'gram'));
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});
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});
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it('should concatenate two strings', function() {
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assert.equal(add('hello ', 'world'), 'hello world');
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assert.equal(add('str', 123), 'str123');
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assert.equal(add(123, 'str'), '123str');
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});
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it('should add matrices correctly', function() {
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var a2 = math.matrix([[1,2],[3,4]]);
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var a3 = math.matrix([[5,6],[7,8]]);
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var a4 = add(a2, a3);
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assert.ok(a4 instanceof math.type.Matrix);
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assert.deepEqual(a4.size(), [2,2]);
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assert.deepEqual(a4.valueOf(), [[6,8],[10,12]]);
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var a5 = math.pow(a2, 2);
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assert.ok(a5 instanceof math.type.Matrix);
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assert.deepEqual(a5.size(), [2,2]);
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assert.deepEqual(a5.valueOf(), [[7,10],[15,22]]);
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});
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it('should add a matrix and an array correctly', function() {
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var a = [1,2,3];
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var b = math.matrix([3,2,1]);
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var c = add(a, b);
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assert.ok(c instanceof math.type.Matrix);
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assert.deepEqual(c, math.matrix([4,4,4]));
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});
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});
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