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Saturday, January 24, 2009 11:21 AM

Faking The Windows Azure Table Service

When presented with a new technology, one of my primary evaluation criteria is its testability, so it should come as no surprise to the regular reader of this blog that this was also foremost in my mind when Windows Azure was presented at PDC. Much of
Posted by ploeh | 1 Comments
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Tuesday, January 20, 2009 8:10 AM

A General-Purpose Fake ADO.NET Data Service

In my previous post , I discussed how to implement a Fake ADO.NET Data Service for use with unit testing, showing how you can develop a one-off service that addresses specific needs, such as querying parents and children in the example. As I hinted in
Posted by ploeh | 2 Comments
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Attachment(s): DataServicesQualityTools.zip
Monday, January 19, 2009 9:00 AM

Creating A Fake ADO.NET Data Service

Previously , I discussed unit testing ADO.NET Data Service clients using a Fake ADO.NET Data Service, and I promised to demonstrate how to create such a service. In this article I will continue the previous example and implement the Fake MyService class.
Posted by ploeh | 1 Comments
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Attachment(s): DataServiceTesting.zip
Wednesday, January 14, 2009 4:51 PM

Unit Testing ADO.NET Data Service Clients

In my previous post , I discussed unit testing ADO.NET Data Services and how you can host and test the service itself. In this post, I'll take a look at the opposite scenario: You have a client of an ADO.NET Data Service, and you want to unit test the
Posted by ploeh | 2 Comments
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Tuesday, January 13, 2009 1:05 PM

Unit Testing ADO.NET Data Services

ADO.NET Data Services enables you to expose data (including, but not limited to, relational data) as REST services. Since it's built on top of WCF, it can be tested utilizing similar techniques , but allow me to elaborate a bit on the subject. As with
Posted by ploeh | 1 Comments
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Monday, January 12, 2009 9:26 AM

Test-Driven Properties

Zero-Friction TDD post #10: In principle, defining properties (or fields, for that matter) while TDD'ing should be no different than defining methods . Again, the important part is to stay focused on the test at hand, and not become bogged down by implementation
Posted by ploeh | 1 Comments
Monday, January 05, 2009 9:53 AM

Use The Generate Method Stub Smart Tag To Stay In The Zone

Yet Another Zero-Friction TDD Article (YAZFTA): When writing unit tests in the TDD fashion, it's important to stay in the zone and not get side-tracked by irrelevant issues. You need to avoid what I call mental context switching. Focus on writing the
Posted by ploeh | 4 Comments
Wednesday, December 17, 2008 1:08 PM

Assert Messages Are Not Optional

...and now, in this week's episode of Zero-Friction TDD : Optional Assert messages that aren't optional anyway! Actually, this piece of advice comes almost directly from the xUnit Test Patterns book, so I was in doubt whether I should post it all, but
Posted by ploeh | 3 Comments
Thursday, December 11, 2008 9:55 AM

Why Use AreEqual<T>?

This is a post in my Zero-Friction TDD series. One of my colleagues recently asked my why I prefer Assert.AreEqual<T> over one of the non-generic Assert.AreEqual overloads for primitive types. In most cases, I'm very happy with the C# compiler's
Posted by ploeh | 1 Comments
Monday, December 08, 2008 3:51 PM

3 Is Many

This is an installment in my Zero-Friction TDD series. When I was a kid, my parents taught me that many is any number above three two*; they used the simple counting sequence one, two, many . This little story may make me seem like I was an incredibly
Posted by ploeh | 1 Comments
Monday, December 01, 2008 2:32 PM

testmethod Code Snippet

This is an installment in my Zero-Friction TDD series. If you are a regular reader of this blog, you may have noticed a certain pattern in my unit test examples (like this one ). This is because I always follow the Four-Phase Test pattern (which is a
Posted by ploeh | 1 Comments
Attachment(s): testmethod.snippet
Friday, November 21, 2008 1:56 PM

Ignore Irrelevant Return Values

This is an installment in my Zero-Friction TDD series. Sometimes, you don't care about the return value from a particular operation. The simplest example is if you want to check that creating a new instance of a specific type will throw an exception if
Posted by ploeh | 1 Comments
Monday, November 17, 2008 1:32 PM

Anonymous Variables

This post is an installment in my series on Zero-Friction TDD . Often when writing a unit test, the SUT 's API will force you to create objects that you really don't care about. As an example, take a look at the signature of this constructor: public Plop(
Posted by ploeh | 4 Comments
Friday, November 14, 2008 10:38 AM

Naming Direct Output Variables

In my series of Zero-Friction TDD tips and tricks, it's time to look at naming Direct Output variables. [ TestMethod ] public void DoStuffWillReturnMessage() { // Fixture setup string expectedResult = "ploeh" ; MyClass sut = new MyClass (); // Exercise
Posted by ploeh | 1 Comments
Thursday, November 13, 2008 12:52 PM

Zero-Friction TDD

Writing good code is difficult. Unit tests are written as code, so a corollary to the first sentence is that writing good unit tests is also difficult. TDD (particularly if you interpret the last D as Design ) carries this challenge in abundance, since
Posted by ploeh | 8 Comments
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