Stuff I learned from TechFest 2009

I like to recap after attending a conference, a seminar, or whatever learning experience I've been through. So here's the recap of my TechFest 2009:

JQuery:

• Home Page
• Best way to debug JQuery: using Firebug
• A great way to do Unobtrusive JavaScript
  
• When design a page, try moving all JavaScript away from the page (move into an external file). This approach even helps performance (because of caching)
  
• Beware of problem between ASP.Net Ajax and JQuery (more...). The problem seems to be on the dollar sign namespace. There are tricks to resolve the problem.
• Someone used the "Noconflict()" call as work arourd but some said it doesn't work.
• QUnit makes it possible to unit test JQuery.

New Features in C# 3.0

• CodeRush and Resharper are both amazing refactoring tool
• People use Extension to create DSL (Domain Specfic Lanaguage)

Mock and Stub

• Difference between mock and stub
• Need to define test in more specific way: automated test (may call db or external stuff), unit test (no external call), integration test (calls all the shit to get real world result)
  
• We should strike for spending more time on Unit Test and less on integration test, cause Unit test is useless unless you got very fast feedback
• Darker Color scheme may help your productivity. Here's some schemes to choose from for VS 2008. Here's a nice dark color scheme. And here's why it's good.
• Speaker suggested Rhino Mocks
• Rhino Mocks relies on the fact that object are all using an interface
• When there's a block of logic you want to externalize, you can refactor that set of code into a class, with a correspsonding interface. And then for the constructor of the current code you require the interface being passed in in your constructor, but at the same time provide a default constructor that have the interface instance created for the user.
• ShouldEqual seems more expressive than Assert, but it seems to be a Microsoft Visual Studio thing.
• Speaker mentioned a book called "Legacy Cookbook". Could not find it, but I found this.
• specification pattern : Class represent logic that return True or False
  
• Assert method got called once only
• Stub : provide predeginded return value
• Spec.stub
• Static class not friendly to mock
• Try use generic mock, var, the C# 3.0 feature.
  
  
• For void , Use assertWasCalled, like need to check to make sure it is being called
• For others,(non void) predictable result, use stub
  

Static Test

• Findbugs. - java
• PMD - java
• FXCop - .Net
  
• Xssdetect. Cross site scripting
  
  Use these tools as preventive effort
  Owasp open review project
  Antisamy.net
  More info : Blogs.nsdn.com/fxcop

Entity Framework

• Still have problem when syncing databack. But maybe there's a soluition.
• Linq to Entity is the best way to use entity framework
• By default Entity Framework use Defer execution, but you can force it to do Immediate execution using keyword include
• EF is an example of ORM
• Great book by Juila Lerman called Programming Entity Framework