Testing ASP.net Web Applications using Ruby

Testing ASP.net using Ruby Meerkatalyst @Ben_HallBen@BenHall.me.ukBlog.BenHall.me.uk

1| Why you should care2| Object Level testing3| UI level testing

What do I mean by Testing ASP.net?

Co-Author of Testing ASP.net Web Applications http://www.testingaspnet.com

WHY TEST? http://www.flickr.com/photos/atomicpuppy/2132073976/

It is 2010. Automated testing is no longer controversial.

http://nerddinner.codeplex.com/SourceControl/changeset/view/23425#439968 [TestMethod]public void EditAction_Retrieves_Dinner_1_From_Repo_And_Countries_And_Sets_DinnerViewModel() { // Arrangevar controller = CreateDinnersControllerAs("someuser"); // ActViewResult result = controller.Edit(1) as ViewResult; // AssertDinnerFormViewModel model = result.ViewData.Model as DinnerFormViewModel;Assert.AreEqual(13, model.Countries.Count());}

http://nerddinner.codeplex.com/SourceControl/changeset/view/23425#439968 [TestMethod]public void EditAction_Retrieves_Dinner_1_From_Repo_And_Countries_And_Sets_DinnerViewModel() { // Arrangevar controller = CreateDinnersControllerAs("someuser"); // ActViewResultresult = controller.Edit(1) as ViewResult; // AssertDinnerFormViewModel model = result.ViewData.Model as DinnerFormViewModel;Assert.AreEqual(13, model.Countries.Count());}

[Fact] public void RsdReturnsValidRsdDoc() {FakeAreaServiceareaService = new FakeAreaService();areaService.StoredAreas.Add("test", new Oxite.Models.Area(false, DateTime.MinValue, null, null, Guid.NewGuid(), DateTime.MinValue, "test"));RouteCollection routes = new RouteCollection();routes.Add("Posts", new Route("", new MvcRouteHandler()));UrlHelper helper = new UrlHelper(new RequestContext(new FakeHttpContext(new Uri("http://oxite.net/"),"~/"), new RouteData()), routes); Site site = new Site() { Host = new Uri("http://oxite.net") };AreaController controller = new AreaController(site, areaService, null, null, null, null, null) { Url = helper };ContentResult result = controller.Rsd("test");Assert.NotNull(result);XDocumentrsdDoc = XDocument.Parse(result.Content);XNamespacersdNamespace = "http://archipelago.phrasewise.com/rsd";XElementrootElement = rsdDoc.Element(rsdNamespace + "rsd");Assert.NotNull(rootElement);Assert.NotNull(rootElement.Attribute("version"));Assert.Equal("1.0", rootElement.Attribute("version").Value);Assert.Equal("Oxite", rootElement.Descendants(rsdNamespace + "engineName").SingleOrDefault().Value);Assert.Equal("http://oxite.net", rootElement.Descendants(rsdNamespace + "engineLink").SingleOrDefault().Value);Assert.Equal("http://oxite.net/", rootElement.Descendants(rsdNamespace + "homePageLink").SingleOrDefault().Value);XElementapisElement = rootElement.Descendants(rsdNamespace + "apis").SingleOrDefault();Assert.NotNull(apisElement);Assert.Equal(1, apisElement.Elements().Count());XElementapiElement = apisElement.Elements().SingleOrDefault();Assert.NotNull(apiElement);Assert.Equal(rsdNamespace + "api", apiElement.Name);Assert.Equal("MetaWeblog", apiElement.Attribute("name").Value);Assert.Equal(areaService.StoredAreas["test"].ID.ToString("N"), apiElement.Attribute("blogID").Value);Assert.Equal("true", apiElement.Attribute("preferred").Value);Assert.Equal("http://oxite.net/MetaWeblog.svc", apiElement.Attribute("apiLink").Value); } http://oxite.codeplex.com/SourceControl/changeset/view/54721#419183

http://grabbagoft.blogspot.com/2007/09/authoring-stories-with-nbehave-03.html [Story] public void Should_find_customers_by_name_when_name_matches() { Story story = new Story("List customers by name"); story.AsA("customer support staff") .IWant("to search for customers in a very flexible manner") .SoThat("I can find a customer record and provide meaningful support"); CustomerRepository repo = null; Customer customer = null; story.WithScenario("Find by name") .Given("a set of valid customers", delegate { repo = CreateDummyRepo(); }) .When("I ask for an existing name", "Joe Schmoe", delegate(string name) { customer = repo.FindByName(name); }) .Then("the correct customer is found and returned", delegate {Assert.That(customer.Name, Is.EqualTo("Joe Schmoe"));}); }

RECORD AND PLAYBACK http://www.flickr.com/photos/gagilas/2659695352/

You can make C# readable But it’s hard

http://www.flickr.com/photos/buro9/298994863/ RUBY?

http://www.flickr.com/photos/mag3737/1914076277/

RSpec http://www.flickr.com/photos/dodgsun/467076780/

[TestMethod]public void EditAction_Retrieves_Dinner_1_From_Repo_And_Countries_And_Sets_DinnerViewModel() { // Arrangevar controller = CreateDinnersControllerAs("someuser"); // ActViewResult result = controller.Edit(1) as ViewResult; // AssertDinnerFormViewModel model = result.ViewData.Model as DinnerFormViewModel;Assert.AreEqual(13, model.Countries.Count());}

describe “when editing” do it end

describe “when editing” do it “should return countries where dinners can be hosted” end

D:ourceControlerddinner-23425pecs>ispecDinnersController_specs.rb * Pending: when editing should return countries where dinners can be hosted (Not Yet Implemented) ./DinnersController_specs.rb:2 Finished in 0.3511328 seconds 1 example, 0 failures, 1 pending

describeNerdDinner::Controllers::DinnersController, “when editing”do

require ‘NerdDinner.dll’ describe NerdDinner::Controllers::DinnersController, “when editing” do

$: << ‘../NerdDinner/bin’ require ‘NerdDinner.dll’ describe NerdDinner::Controllers::DinnersController, “when editing” do

$: << ‘../NerdDinner/bin’ require ‘NerdDinner.dll’ Include NerdDinner::Controllers describe DinnersController, “when editing” do

it “returns countries where dinners can be hosted” do controller = DinnersController.new end

it “returns countries where dinners can be hosted” do controller = DinnersController.new(dinner_repos(dinners)) end

it “returns countries where dinners can be hosted” do controller = DinnersController.new(dinner_repos(dinners)) result = controller.Edit(1).ViewData.Model end

it “returns countries where dinners can be hosted” do controller = DinnersController.new(dinner_repos(dinners)) result = controller.Edit(1).ViewData.Model result.Countries.Count().should == test_data.length end RSpec has really powerful matchers

D:ourceControlerddinner-23425pecs>ispecDinnersController_specs.rb F 1) 'NerdDinner::Controllers::DinnersController when editing should return countries where dinners can be hosted' FAILED expected: 13, got: nil (using ==) ./DinnersController_specs.rb:8: Finished in 0.4824219 seconds 1 example, 1 failure

D:ourceControlerddinner-23425pecs>ispecDinnersController_specs.rb . Finished in 0.4355469 seconds 1 example, 0 failures

require ‘caricature’ def dinner_repos(test_data) IDinnerRepository.isolate(:FindUpcomingDinners) {returns test_data} End

def create_dinners(count=13) dinners = [] count.timesdo |i| dinners << Dinner.new(:country => “Value#{i}”) end end

describe DinnersController, "when editing" do let(:dinners) {create_dinners} let(:controller) {DinnersController.new(dinner_repos dinners)} it "returns countries where dinners can be hosted" do result = controller.Edit(dinners.first.id).view_model result.Countries.Count().should == dinners.length end end

result.Countries.Count().should == dinners.length result.Countries.shouldhave_same_count(dinners) module Matchers class CountEqual def initialize(expected) @expected = expected end def matches?(actual) actual.Count() == @expected.Count() end end def have_same_count(expected) CountEqual.new(expected) end end Duck Typing FTW!

describe DinnersController, “Managing dinner reservations” do let(:dinners) { valid_dinners } let(:controller) {DinnersController.new(dinner_repository dinners)} describe “when editing“it_should_behave_like “valid dinners” it "returns countries where dinners can be hosted" end describe “when saving“ do describe “the validation for invalid dinners” do let(:dinners) { bad_dinners(1) }it “should reject a dinner without a name” it “should reject a dinner without a email address” it “should accept a dinner if it has a name and email address” end describe “confirmation” do it “should send an email to the organiser once saved” end describe “valid dinners” do it “redirects to thank you page after completing" end end end

describe "NHibernate" do before do config = Configuration.new @cfg = config.configure(File.join(Dir.pwd, "nhibernate.config")) end it "can create session factory" do session_factory = @cfg.BuildSessionFactory() session_factory.should_notbe_nil end it "can create session" do session_factory = @cfg.BuildSessionFactory() session = session_factory.open_session session.should_notbe_nil end end

Cucumber http://www.flickr.com/photos/vizzzual-dot-com/2738586453/

Documentation, automated tests and development-aid

[Story] public void Should_find_customers_by_name_when_name_matches() { Story story = new Story("List customers by name"); story.AsA("customer support staff") .IWant("to search for customers in a very flexible manner") .SoThat("I can find a customer record and provide meaningful support"); CustomerRepository repo = null; Customer customer = null; story.WithScenario("Find by name") .Given("a set of valid customers", delegate { repo = CreateDummyRepo(); }) .When("I ask for an existing name", "Joe Schmoe", delegate(string name) { customer = repo.FindByName(name); }) .Then("the correct customer is found and returned", delegate {Assert.That(customer.Name, Is.EqualTo("Joe Schmoe"));}); }

Feature: List customers by name As a customer support staff I want to search for customers in a very flexible manner So that I can find a customer record and provide meaningful supportScenario: Find by name Given a set of valid customers When I ask for an existing name Then the correct customer is found and returned

Feature: List customers by nameAs a customer support staffI want to search for customers in a very flexible mannerSo that I can find a customer record and provide meaningful supportScenario: Find by name Given a set of valid customersWhen I ask for an existing nameThen the correct customer is found and returned

D:ourceControlerddinner-23425eatures>cucumber list.feature Feature: List customers by name As a customer support staff I want to search for customers in a very flexible manner So that I can find a customer record and provide meaningful support Scenario: Find by name # list.feature:6 Given a set of valid customers # list.feature:7 When I ask for an existing name # list.feature:8 Then the correct customer is found and returned # list.feature:9 1 scenario (1 undefined) 3 steps (3 undefined) 0m0.020s You can implement step definitions for undefined steps with these snippets: Given /^a set of valid customers$/ do pending # express the regexp above with the code you wish you had end When /^I ask for an existing name$/ do pending # express the regexp above with the code you wish you had end Then /^the correct customer is found and returned$/ do pending # express the regexp above with the code you wish you had end

NOT BEST PRACTICE!! Given /^a set of valid customers$/ do @repo = CreateDummyRepo()endWhen /^I ask for an existing name$/ do @customer = @repo.FindByName("Joe Schmoe")endThen /^the correct customer is found and returned$/ do @customer.Name.should == "Joe Schmoe“end

Given /^customer “([âmp;quot;]*)” $/ do |name| @repo = CustomerRepository.new(Customer.new(:name => name)endWhen /Î search for customer “([âmp;quot;]*)”$/ do |name| @customer = @repo.FindByName(name)endThen /^”([âmp;quot;]*)” should be found and returned$/ do |name| @customer.Name.should == nameend

WebRat http://www.flickr.com/photos/whatwhat/22624256/

visit click_link fill_in click_button check and uncheck choose select attach_file

EXAMPLES Cucumber, WebRat and Automated UI testing

http://blog.benhall.me.uk/2009/12/sneak-peek-at-meerkatalystlonestar.html

http://www.flickr.com/photos/leon_homan/2856628778/

http://www.flickr.com/photos/philliecasablanca/2456840986/ @Ben_HallBen@BenHall.me.ukBlog.BenHall.me.uk

using Cuke4Nuke.Framework; usingNUnit.Framework; usingWatiN.Core; namespaceGoogle.StepDefinitions { publicclassSearchSteps { Browser _browser; [Before] publicvoidSetUp() { _browser = new WatiN.Core.IE(); } [After] publicvoidTearDown() { if (_browser != null) { _browser.Dispose(); } } [When(@"^(?:I'm on|I go to) the search page$")] publicvoidGoToSearchPage() { _browser.GoTo("http://www.google.com/"); } [When("Î search for amp;quot;(.*)amp;quot;$")] publicvoidSearchFor(string query) { _browser.TextField(Find.ByName("q")).TypeText(query); _browser.Button(Find.ByName("btnG")).Click(); } [Then("Î should be on the search page$")] publicvoidIsOnSearchPage() { Assert.That(_browser.Title == "Google"); } [Then("Î should see amp;quot;(.*)amp;quot; in the results$")] publicvoidResultsContain(stringexpectedResult) { Assert.That(_browser.ContainsText(expectedResult)); } } }

Given /^(?:I'm on|I go to) the search page$/ do visit 'http://www.google.com' end When /Î search for "([âmp;quot;]*)"$/ do|query| fill_in 'q', :with => query click_button 'Google Search' end Then /Î should be on the search page$/ do dom.search('title').should == "Google" end Then /Î should see amp;quot;(.*)amp;quot; in the results$/ do|text| response.should contain(text) end

Software Recommended: IronRuby Ruby Cucumber Rspec WebRat mechanize Selenium RC selenium-client Caricature activerecord-sqlserver-adapter Optional: XSP Mono JetBrain’sRubyMine JRuby Capybara Celerity Active record active-record-model-generator Faker Guid

Useful Links http://www.github.com/BenHall http://blog.benhall.me.uk http://stevehodgkiss.com/2009/11/14/using-activerecord-migrator-standalone-with-sqlite-and-sqlserver-on-windows.html http://www.testingaspnet.com http:// http://msdn.microsoft.com/en-us/magazine/dd434651.aspx http://msdn.microsoft.com/en-us/magazine/dd453038.aspx http://www.cukes.info

Getting SQL Server to work gem install activerecord-sqlserver-adapter Download dbi-0.2.2.zip Extract dbdDO.rb to rubyite_ruby.8BDDO.rb

Testing ASP.net Web Applications using Ruby

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