lib/get-x.spec.js
/* eslint no-unused-expressions: 0 */
const chai = require('chai');
const sinonChai = require('sinon-chai');
const MagikVector = require('./magik-vector');
const expect = chai.expect;
chai.use(sinonChai);
describe('getX()', () => {
it('should be available', () => {
const magikVectorInstance = new MagikVector();
expect(magikVectorInstance.getX).to.be.a('function');
});
it('should return the correct value', () => {
const expectedValue = (new Date()).getTime();
const magikVectorInstance = new MagikVector(expectedValue);
expect(magikVectorInstance.getX()).to.equal(expectedValue);
});
it('should also set 0 as a value', () => {
const expectedValue = 0;
const magikVectorInstance = new MagikVector(expectedValue);
expect(magikVectorInstance.getX()).to.equal(expectedValue);
});
it('should set the x coordinate to undefined when not provided', () => {
const magikVectorInstance = new MagikVector();
expect(magikVectorInstance.getX()).to.equal(undefined);
});
it('should set the x coordinate when multiple coordinates are given', () => {
const expectedValue = (new Date()).getTime();
const magikVectorInstance = new MagikVector(expectedValue, 4, 3, 2, 1);
expect(magikVectorInstance.getX()).to.equal(expectedValue);
});
});