Improve/expand test coverage for utils
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Andrew Stewart
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4c464f0d88
commit
0ebd4153d4
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@ -1,38 +1,148 @@
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'use strict';
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source("utils");
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"use strict";
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var utils = source("utils");
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describe("Utils", function() {
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describe("Monkeypatches Number", function() {
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it("adds seconds() method", function() {
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5..seconds().should.be.equal(5000);
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describe("Monkey-patches", function() {
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describe("Number", function() {
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describe("#seconds", function() {
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it("allows for expressing time in seconds", function() {
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expect((5).seconds()).to.be.eql(5000);
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});
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});
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it("adds second() method", function() {
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1..second().should.be.equal(1000);
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describe("#second", function() {
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it("allows for expressing time in seconds", function() {
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expect((1).second()).to.be.eql(1000);
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});
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});
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it("scales an Integer", function() {
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2..fromScale(1, 10).toScale(1, 20).should.be.equal(4);
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describe("#fromScale", function() {
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it("converts a value from one scale to 0-1 scale", function() {
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expect((5).fromScale(0, 10)).to.be.eql(0.5);
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});
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it("scales a right angle", function() {
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90..fromScale(1, 180).toScale(-90, 90).should.be.equal(0);
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it("converts floats", function() {
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expect(2.5.fromScale(0, 10)).to.be.eql(0.25);
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});
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});
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it("scales an acute angle", function() {
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45..fromScale(1, 180).toScale(0, 90).should.be.equal(23);
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describe("#toScale", function() {
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it("converts a value from 0-1 scale to another", function() {
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expect((0.5).toScale(0, 10)).to.be.eql(5);
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});
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it("scales a Float", function() {
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2.5.fromScale(1, 10).toScale(1, 20).should.be.equal(5);
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it("converts to floats", function() {
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expect(0.25.toScale(0, 10)).to.be.eql(2.5);
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});
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it("can be chained with #fromScale", function() {
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var num = (5).fromScale(0, 20).toScale(0, 10);
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expect(num).to.be.eql(2.5);
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});
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});
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});
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});
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describe("#every", function() {
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before(function() {
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this.clock = sinon.useFakeTimers();
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});
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after(function() {
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this.clock.restore();
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});
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it("sets a function to be called every time an interval passes", function() {
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var func = spy();
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utils.every(10, func);
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this.clock.tick(25);
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expect(func).to.be.calledTwice;
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});
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});
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describe("#after", function() {
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before(function() {
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this.clock = sinon.useFakeTimers();
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});
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after(function() {
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this.clock.restore();
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});
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it("sets a function to be called after time an interval passes", function() {
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var func = spy();
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utils.after(10, func);
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this.clock.tick(15);
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expect(func).to.be.called;
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});
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});
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describe("constantly", function() {
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before(function() {
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stub(global, 'every').returns(0);
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});
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after(function() {
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global.every.restore();
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});
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it("schedules a task to run continuously with #every", function() {
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var func = function() {};
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utils.constantly(func);
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expect(global.every).to.be.calledWith(0, func);
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});
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});
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describe("#slice", function() {
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it("performs array slices", function() {
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var arr = [1, 2, 3, 4, 5];
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expect(slice.call(arr, 1)).to.be.eql([2, 3, 4, 5]);
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});
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});
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describe("hasProp", function() {
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it("checks objects have properties", function() {
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var obj = { test: 'test' };
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expect(hasProp.call(obj, 'test')).to.be.true;
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});
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});
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describe("#subclass", function() {
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var BaseClass = (function() {
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function BaseClass(opts) {
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this.greeting = opts.greeting;
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};
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BaseClass.prototype.sayHi = function() {
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return "Hi!";
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};
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return BaseClass
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})();
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var SubClass = (function(klass) {
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subclass(SubClass, klass);
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function SubClass(opts) {
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SubClass.__super__.constructor.apply(this, arguments);
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};
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return SubClass;
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})(BaseClass);
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it("adds inheritance to Javascript classes", function() {
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var sub = new SubClass({greeting: "Hello World"});
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expect(sub.greeting).to.be.eql("Hello World");
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expect(sub.sayHi()).to.be.eql("Hi!");
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});
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});
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describe("#proxyFunctionsToObject", function() {
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var ProxyClass, TestClass, methods;
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methods = ['asString', 'toString', 'returnString'];
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var methods = ['asString', 'toString', 'returnString'];
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ProxyClass = (function() {
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var ProxyClass = (function() {
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function ProxyClass() {}
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ProxyClass.prototype.asString = function() {
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@ -50,7 +160,7 @@ describe("Utils", function() {
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return ProxyClass;
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})();
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TestClass = (function() {
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var TestClass = (function() {
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function TestClass() {
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this.self = this;
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this.testInstance = new ProxyClass;
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@ -60,54 +170,41 @@ describe("Utils", function() {
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return TestClass;
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})();
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var testclass = new TestClass();
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it('can alias methods', function() {
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var testclass;
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testclass = new TestClass;
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assert(typeof testclass.asString === 'function');
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testclass.asString().should.be.equal("[object ProxyClass]");
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expect(testclass.asString()).to.be.eql("[object ProxyClass]");
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});
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it('can alias existing methods if forced to', function() {
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var testclass;
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testclass = new TestClass;
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assert(typeof testclass.toString === 'function');
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testclass.toString().should.be.equal("[object ProxyClass]");
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expect(testclass.toString()).to.be.eql("[object ProxyClass]");
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});
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it('can alias methods with arguments', function() {
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var testclass;
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testclass = new TestClass;
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assert(typeof testclass.returnString === 'function');
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testclass.returnString("testString").should.be.equal("testString");
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expect(testclass.returnString).to.be.a('function');
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});
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});
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describe("#proxyTestStubs", function() {
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it("proxies methods to an object's commandList", function() {
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var base, methods;
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methods = ["hello", "goodbye"];
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base = {
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commandList: []
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};
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var methods = ["hello", "goodbye"],
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base = { commandList: [] };
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proxyTestStubs(methods, base);
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expect(base.commandList).to.be.eql(methods);
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});
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it("returns the object methods have been proxied to", function() {
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var base, methods;
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methods = ["hello", "goodbye"];
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base = {
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commandList: []
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};
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var methods = ["hello", "goodbye"],
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base = { commandList: [] };
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expect(proxyTestStubs(methods, base)).to.be.eql(base);
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});
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});
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describe("#bind", function() {
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var me = { hello: "Hello World" };
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var proxy = {
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boundMethod: function() { return this.hello; }
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};
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var me = { hello: "Hello World" },
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proxy = { boundMethod: function() { return this.hello; } };
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it("binds the 'this' scope for the method", function() {
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proxy.boundMethod = function() { return this.hello; };
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