Testing ASP.net Web Applications using Ruby

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

UK based C# MVPWeb Developer @ 7digital.com Working on a number of Open Source Projects
Co-Author of
Testing ASP.net Web Applications
http://www.testingaspnet.com

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

What do I mean by Testing ASP.net?

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

It is 2010. Automated testing is no longer controversial.

[TestMethod()] public void DebitTest() { string customerName = "Mr. Bryan Walton"; double balance = 11.99; BankAccount target = new BankAccount(customerName, balance); double amount = 11.22; target.Debit(amount); Assert.AreEqual((System.Convert.ToDouble(0.77)), target.Balance, 0.05); // 0.05 is tolerance for floating-point comparison //Assert.Inconclusive("A method that does not return a value cannot be verified."); }

[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"));}); }

[Description] public class Transferring_between_from_account_and_to_account { static Account fromAccount; static Account toAccount; Context before_each =()=> { fromAccount = new Account {Balance = 1m}; toAccount = new Account {Balance = 1m}; }; When the_transfer_is_made =()=> { fromAccount.Transfer(1m, toAccount); }; It should_debit_the_from_account_by_the_amount_transferred =()=> { fromAccount.Balance.ShouldEqual(0m); }; It should_credit_the_to_account_by_the_amount_transferred =()=> { toAccount.Balance.ShouldEqual(2m); }; }

[Test]public void WatiNSearchText_SearchWatiN_TextDisplayedOnScreen(){ IE ie = new IE("http://localhost:49992/WatiNSite/"); ie.TextField(Find.ByName("searchText")).TypeText("WatiN"); ie.Button(Find.ByValue("Search")).Click(); bool result = ie.Text.Contains("WatiN"); Assert.IsTrue(result); }

You can make C# readable
But it’s hard

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

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

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

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

Behaviour Driven Development

describe MyObject do
it “should do something cool” do
end
end

[TestMethod()] public void DebitTest() { string customerName = "Mr. Bryan Walton"; double balance = 11.99; BankAccount target = new BankAccount(customerName, balance); double amount = 11.22; target.Debit(amount); Assert.AreEqual((System.Convert.ToDouble(0.77)), target.Balance, 0.05); // 0.05 is tolerance for floating-point comparison //Assert.Inconclusive("A method that does not return a value cannot be verified."); }

describe BankAccount, “Transactions” do it “can debit pence from an account” docustomer_name = "Mr. Bryan Walton"; current_balance = 1.50; account = BankAccount(customer_name, current_balance).newamount_to_debit = 1.25; account.Debit(amount); account.Balance.should == 0.25 endend

describe BankAccount, “Transactions” do before(:each) docurrent_balance = 1.50; @account = BankAccount.new("Mr. Bryan Walton", current_balance) end it “can debit pence from an account” doamount_to_debit = 1.25 @account.Debit amount @account.Balance.should == 0.25 endend

Intent

IronRuby

Thank you

DEMO
RSpec

Outside-in Development

Executable Specification

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

Feature: Creating a schedule
In Order to book meetings
The manager
Needs to be able to view a teams calendar
Scenario: View calendar of another view
GivenBob has a public calendar
When the manager views Bob’s calendar
Then an empty calendar should be shown

Given/^([^"]*) has a public calendar$/ do |user|
end

When /^ the manager views ([^"]*)’s calendar$/ do |user|
end

Then /^ an empty calendar should be shown $/ do
end

[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

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

DEMO
Cucumber, WebRat and Automated UI testing

Where are 7digital?
http://www.flickr.com/photos/michelangelo_mi/1314320102/

One more thing...

Meerkatalyst

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

Expressing intent

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

http://blog.benhall.me.uk	155
http://blog2.benhall.me.uk	106
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Testing ASP.net Web Applications using Ruby

by Ben Hall on Jan 17, 2010

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