Improve/expand test coverage for utils

This commit is contained in:
Andrew Stewart 2014-03-10 15:26:19 -07:00
parent 4c464f0d88
commit 0ebd4153d4
1 changed files with 142 additions and 45 deletions

View File

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