Current File : //proc/self/root/home/infra/fusioninventory/lib/lazy.js-0.5.1/spec/support/spec_helper.min.js
(function(context){if(typeof require==="function"){context.Lazy=require("../../lazy.node.js");context.AsyncSpec=require("jasmine-async")(context.jasmine);require("./person.js")}context.comprehensiveSequenceTest=function(name,options){var cases=options.cases;Lazy(cases).each(function(testCase){comprehensiveTestCase(name,testCase,options)});var aliases=options.aliases||[];Lazy(aliases).each(function(alias){describe("#"+alias,function(){it("is an alias for #"+name,function(){var verifyDelegation=function(sequence){spyOn(sequence,name).andCallThrough();iterate(sequence[alias].apply(sequence,cases[0].params));expect(sequence[name]).toHaveBeenCalled()};verifyDelegation(Lazy(cases[0].input));verifyDelegation(Lazy(cases[0].input).map(Lazy.identity));verifyDelegation(Lazy(cases[0].input).filter(alwaysTrue))})})})};function comprehensiveTestCase(name,testCase,options){var label="#"+name;if(testCase.label){label+=" ("+testCase.label+")"}describe(label,function(){var monitor,sequence;beforeEach(function(){monitor=createMonitor(testCase.input);sequence=Lazy(monitor)});function getResult(){return sequence[name].apply(sequence,testCase.params||[])}function iterateResult(){return iterate(getResult())}function assertResult(){expect(getResult()).toComprise(testCase.result)}var sequenceTypes=[{label:"an ArrayWrapper",transform:function(){return sequence}},{label:"an ArrayLikeSequence",transform:function(){return sequence.map(Lazy.identity)}},{label:"an ordinary sequence",transform:function(){return sequence.filter(alwaysTrue)},arrayLike:false}];Lazy(sequenceTypes).each(function(sequenceType){describe("for "+sequenceType.label,function(){beforeEach(function(){sequence=sequenceType.transform()});it("works as expected",function(){assertResult()});it("is actually lazy",function(){getResult();expect(monitor.accessCount()).toBe(0)});it("supports early termination",function(){expect(getResult().take(2)).toComprise(testCase.result.slice(0,2))});if(!lookupValue("skipAccessCounts",[sequenceType,options])){it("accesses the minimum number of elements from the source",function(){var expectedAccessCount=testCase.accessCountForTake2||2;iterate(getResult().take(2));expect(monitor.accessCount()).toEqual(expectedAccessCount)})}it("passes along the index with each element during iteration",function(){indexes=getResult().map(function(e,i){return i}).toArray();expect(indexes).toComprise(Lazy.range(indexes.length))});describe("each",function(){it("returns true if the entire sequence is iterated",function(){var result=iterateResult();expect(result).toBe(true)});it("returns false if iteration is terminated early",function(){var result=getResult().each(alwaysFalse);expect(result).toBe(false)});it("returns false if the last iteration returns false",function(){var length=getResult().value().length;var result=getResult().each(function(e,i){if(i===length-1){return false}});expect(result).toBe(false)})});describe("indexed access",function(){it("is supported",function(){expect(getResult().get(1)).toEqual(testCase.result[1])});if(lookupValue("arrayLike",[sequenceType,options])){it("does not invoke full iteration",function(){getResult().get(1);expect(monitor.accessCount()).toEqual(1)})}});if(lookupValue("supportsAsync",[sequenceType,options])){describe("async iteration",function(){var async=new AsyncSpec(this);function getAsyncResult(){return getResult().async()}async.it("is supported",function(done){getAsyncResult().toArray().onComplete(function(result){expect(result).toEqual(testCase.result);done()})});async.it("supports early termination",function(done){var expectedAccessCount=testCase.accessCountForTake2||2;getAsyncResult().take(2).toArray().onComplete(function(result){expect(result).toEqual(testCase.result.slice(0,2));done()})})})}})})})}function createMonitor(target){var monitor=Lazy.clone(target),accesses={};function monitorProperty(property){Object.defineProperty(monitor,property,{get:function(){accesses[property]=true;return target[property]}})}Lazy(target).each(function(value,property){monitorProperty(property)});monitor.accessCount=function(){return Object.keys(accesses).length};monitor.accessedAt=function(property){return!!accesses[property]};return monitor}function iterate(sequence){return sequence.each(Lazy.noop)}function lookupValue(property,objects){for(var i=0;i<objects.length;++i){if(property in objects[i]){return objects[i][property]}}}context.arraysCreated=0;var originalToArray=Lazy.Sequence.prototype.toArray;Lazy.Sequence.prototype.toArray=function(){var result=originalToArray.apply(this);arraysCreated+=1;return result};beforeEach(function(){var people=[context.david=new Person("David",63,"M"),context.mary=new Person("Mary",62,"F"),context.lauren=new Person("Lauren",32,"F"),context.adam=new Person("Adam",30,"M"),context.daniel=new Person("Daniel",28,"M"),context.happy=new Person("Happy",25,"F")];context.people=people.slice(0);var personsAccessed=[false,false,false,false,false,false];context.personsAccessed=function(){return Lazy(personsAccessed).compact().value().length};Lazy.range(context.people.length).forEach(function(index){Object.defineProperty(context.people,index,{get:function(){personsAccessed[index]=true;return people[index]}})});Person.reset(people);arraysCreated=0});beforeEach(function(){this.addMatchers({toComprise:function(elements){var actual=this.actual;if(actual instanceof Lazy.Sequence){actual=actual.value()}if(elements instanceof Lazy.Sequence){elements=elements.value()}expect(actual).toEqual(elements);return true},toBeInstanceOf:function(type){var actual=this.actual;this.message=function(){return"Expected "+actual+" to be a "+(type.name||type)};return actual instanceof type},toPassToEach:function(argumentIndex,expectedValues){var i=0;this.actual.each(function(){expect(arguments[argumentIndex]).toEqual(expectedValues[i++])});return true}})});context.populate=function(collection,contents){if(collection instanceof Array){for(var i=0,len=contents.length;i<len;++i){collection.push(contents[i])}return}for(var key in contents){collection[key]=contents[key]}};context.ensureLaziness=function(action){it("doesn't eagerly iterate the collection",function(){action();expect(Person.accesses).toBe(0)})};context.createAsyncTest=function(description,options){it(description,function(){performAsyncSteps(options)})};context.performAsyncSteps=function(options){var results=[];var expected=typeof options.expected==="function"?options.expected():options.expected;runs(function(){options.getSequence().each(function(e){results.push(e)});expect(results.length).toBe(0)});waitsFor(function(){return results.length===expected.length});runs(function(){expect(results).toEqual(expected)});if(options.additionalExpectations){runs(options.additionalExpectations)}};context.testAllSequenceTypes=function(description,array,expectation){it(description+" for a wrapped array",function(){var arrayWrapper=Lazy(array);expectation(arrayWrapper)});it(description+" for an indexed sequence",function(){var indexedSequence=Lazy(array).map(Lazy.identity);expectation(indexedSequence)});it(description+" for a non-indexed sequence",function(){var nonIndexedSequence=Lazy(array).filter(alwaysTrue);expectation(nonIndexedSequence)})};context.add=function(x,y){return x+y};context.increment=function(x){return x+1};context.isEven=function(x){return x%2===0};context.alwaysTrue=function(x){return true};context.alwaysFalse=function(x){return false};context.toBeCalled=function(callback){return function(){return callback.callCount>0}};context.toBePopulated=function(collection,length){return function(){if(!collection){return false}var size=typeof collection.length==="number"?collection.length:Object.keys(collection).length;if(length){return size===length}return size>0}}})(typeof global!=="undefined"?global:window);
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