Testing

Open-source Web service Testing Tools

Devin A. Rychetnik — Tue, 15 May 2007 01:03:40 GMT

This article reviews three open-source web service testing tools that might be useful if you don't already have one: http://www.infoworld.com/article/07/05/11/19TCwebservicetest_1.html.

Memory Leaks in Managed Code

Devin A. Rychetnik — Wed, 17 Jan 2007 02:35:00 GMT

Here is an excellent article on types of memory leaks you can still have in a managed app: http://msdn.microsoft.com/msdnmag/issues/07/01/ManagedLeaks/default.aspx.

One thing I was blown away with was this code snippet that dynamically creates an assembly in memory:

CodeCompileUnit program = new CodeCompileUnit();
CodeNamespace ns = new
CodeNamespace("MsdnMag.MemoryLeaks.CodeGen.CodeDomGenerated");
ns.Imports.Add(new CodeNamespaceImport("System"));
program.Namespaces.Add(ns);

CodeTypeDeclaration class1 = new CodeTypeDeclaration("CodeDomHello");
ns.Types.Add(class1);
CodeEntryPointMethod start = new CodeEntryPointMethod();
start.ReturnType = new CodeTypeReference(typeof(void));
CodeMethodInvokeExpression cs1 = new CodeMethodInvokeExpression(
new CodeTypeReferenceExpression("System.Console"), "WriteLine",
new CodePrimitiveExpression("Hello, World!"));
start.Statements.Add(cs1);
class1.Members.Add(start);

CSharpCodeProvider provider = new CSharpCodeProvider();
CompilerResults results = provider.CompileAssemblyFromDom(
new CompilerParameters(), program);

(Beware of dynamically generating MSIL using System.CodeDom like this. If you are regenerating code then you are leaking unmanaged heap memory.)

Microsoft Http Fiddler Debugger and Http Performance, Caching, & Compression

Devin A. Rychetnik — Thu, 09 Nov 2006 07:04:00 GMT

As well as introducing the Microsoft Fiddler Http Debugger, these two articles provide a good introduction to Http performance, caching and compression.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/IETechCol/dnwebgen/IE_IntroFiddler.asp

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/IETechCol/dnwebgen/IE_Fiddler2.asp

Test-Driven Development (TDD) & Unit Testing Tools

Devin Rychetnik — Thu, 27 Jul 2006 06:16:00 GMT

This article provides a nice introduction to Test-Driven Development (TDD) and a fair assesment of its advantages and disadvantages: http://www.developer.com/design/article.php/3622546.

It also included this nice little reference list of unit testing tools available for different programming languages:

C++	cppUnit
.Net	csUnit
C	CUnit
Borland Delphi	DUnitDelphi
JUnit extension for database
projects	DBUnit
Java	JUnit
.Net library for database projects	NDbUnit
Oracle Unit Tester	OUnit
PHP	PHPUnit
Python	PyUnit
.Net	NUnit
Ruby	Test::Unit (Included with Ruby on Rails)
Visual Basic	VBUnit