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?

Natural Language

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

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

Behaviour Driven Development

Intent

[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

describe “when editing”do

describe “when editing” do
it
end

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

D:SourceControl erddinner-23425specs>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’
describe NerdDinner::Controllers::DinnersController, “when editing” do

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

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

controller = DinnersController.new(dinner_repos(dinners))
end

result = controller.Edit(1).ViewData.Model
end

result = controller.Edit(1).ViewData.Model
result.Countries.Count().should == test_data.length
end
RSpec has really powerful matchers

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:
1 example, 1 failure

.
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

Outside-in Development

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:SourceControl erddinner-23425features>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
end
Then /^the correct customer is found and returned$/ do
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

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

One more thing...

Meerkatalyst

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

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

Expressing intent

Ruby -> C#

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$")]
publicvoidGoToSearchPage()
{
_browser.GoTo("http://www.google.com/");
}
[When("Î search for "(.*)"$")]
publicvoidSearchFor(string query)
{
_browser.TextField(Find.ByName("q")).TypeText(query);
_browser.Button(Find.ByName("btnG")).Click();
}
[Then("Î should be on the search page$")]
publicvoidIsOnSearchPage()
{
Assert.That(_browser.Title == "Google");
}
[Then("Î should see "(.*)" in the results$")]
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 "([^"]*)"$/ 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 "(.*)" 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 dbdADO.rb to rubysite_ruby1.8DBDADO.rb

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Testing ASP.net Web Applications using Ruby

by Ben Hall on Jan 31, 2010

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Testing ASP.net Web Applications using Ruby — Presentation Transcript