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75 lines
2.8 KiB
JavaScript
75 lines
2.8 KiB
JavaScript
// test unary plus
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var assert = require('assert'),
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math = require('../../../index'),
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error = require('../../../lib/error/index'),
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bignumber = math.bignumber;
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describe('unaryPlus', function() {
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it('should return unary plus of a boolean', function () {
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assert.equal(math.unaryPlus(true), 1);
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assert.equal(math.unaryPlus(false), 0);
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});
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it('should return unary plus of null', function () {
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assert.equal(math.unaryPlus(null), 0);
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});
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it('should return bignumber unary plus of a boolean', function () {
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var bigmath = math.create({number: 'bignumber'});
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assert.deepEqual(bigmath.unaryPlus(true), bigmath.bignumber(1));
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assert.deepEqual(bigmath.unaryPlus(false), bigmath.bignumber(0));
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});
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it('should return unary plus on a string', function() {
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assert.equal(math.unaryPlus('2'), 2);
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assert.equal(math.unaryPlus('-2'), -2);
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});
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it('should return bignumber unary plus on a string', function() {
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var bigmath = math.create({number: 'bignumber'});
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assert.deepEqual(bigmath.unaryPlus('2'), bigmath.bignumber(2));
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assert.deepEqual(bigmath.unaryPlus('-2'), bigmath.bignumber(-2));
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});
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it('should perform unary plus of a number', function() {
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assert.deepEqual(math.unaryPlus(2), 2);
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assert.deepEqual(math.unaryPlus(-2), -2);
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assert.deepEqual(math.unaryPlus(0), 0);
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});
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it('should perform unary plus of a big number', function() {
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assert.deepEqual(math.unaryPlus(bignumber(2)), bignumber(2));
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assert.deepEqual(math.unaryPlus(bignumber(-2)), bignumber(-2));
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assert.deepEqual(math.unaryPlus(bignumber(0)).valueOf(), bignumber(0).valueOf());
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});
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it('should perform unary plus of a complex number', function() {
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assert.equal(math.unaryPlus(math.complex(3, 2)), '3 + 2i');
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assert.equal(math.unaryPlus(math.complex(3, -2)), '3 - 2i');
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assert.equal(math.unaryPlus(math.complex(-3, 2)), '-3 + 2i');
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assert.equal(math.unaryPlus(math.complex(-3, -2)), '-3 - 2i');
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});
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it('should perform unary plus of a unit', function() {
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assert.equal(math.unaryPlus(math.unit(5, 'km')).toString(), '5 km');
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});
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it('should perform element-wise unary plus on a matrix', function() {
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a2 = math.matrix([[1,2],[3,4]]);
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var a7 = math.unaryPlus(a2);
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assert.ok(a7 instanceof math.type.Matrix);
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assert.deepEqual(a7.size(), [2,2]);
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assert.deepEqual(a7.valueOf(), [[1,2],[3,4]]);
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assert.deepEqual(math.unaryPlus([[1,2],[3,4]]), [[1,2],[3,4]]);
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});
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it('should throw an error in case of invalid number of arguments', function() {
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assert.throws(function () {math.unaryPlus()}, error.ArgumentsError);
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assert.throws(function () {math.unaryPlus(1, 2)}, error.ArgumentsError);
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});
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it('should throw an error in case of invalid type of argument', function() {
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assert.throws(function () {math.unaryPlus(new Date())}, error.UnsupportedTypeError);
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});
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}); |