I'm looking for sample solution(s) that demonstrate various kinds of unit tests in C# using best practices. Also I require the examples to use the Visual Studio test tools. I know that there are a number of books and web sources on unit testing, but they don’t use the Visual Studio tools for writing their unit tests. I don’t want really basic examples such as can be found here. I am looking to move to the next level of unit-testing and I can’t find advanced examples of unit testing that use Visual Studio 2010 or even VS 2008.
EDIT: To be more clear; I am working on a project where I have to use the testing tools that are built in to Visual Studio. I am not looking for info on any 3rd party testing tools.
Visual Studio unit testing intro and TDD: Test-Driven Development with Visual Studio 2008 Unit Tests may be more to what you are wanting to find perhaps.
nUnit's adoption before Microsoft put built-in unit test support is my guess for why the built-in testing abilities are shunned to some extent. nAnt/nUnit and CI tools may be used outside of the Team System that has a substantial cost in some cases I'd think. Though for those open to 3rd party ideas, here are a couple of other examples:
Using NUnit in Visual Studio 2010 may be a blog example that shows you nUnit + VS2010 as it is possible to do that.
Easy Debugging of NUnit Tests from Visual Studio 2008 Professional would be an example for 2008.
By advanced do you mean things like Rhino Mocks?
Have you considered nUnit?, there are plenty of advanced testing examples if you take a poke around google.
Edit:
Just stumbled across another Unit Testing suite, MbUnit which seems to be aimed at more advanced testing.
The closest thing that I have found so far is the Enterprise Library; although it is not written as a unit test tutorial it does have a large number of unit tests and code written using best practices.
If no one else comes up with something better, I will mark this as the answer.
Related
I am currently looking into UI testing with alternatives for Selenium, recently i made the switch to VS2013 from VS2012 and the first thing i notice is that, the Coded UI Test project template is missing.
Anyone has a clue why this is missing and / or i need to install something in addition or if some workaround exists to make it available again?
Visual Studio 2013 Ultimate and Premium Editions have CodedUI test. See here for all the supported configuration details:
http://msdn.microsoft.com/en-us/library/dd380742.aspx
I am not sure if you can add it to Professional(I see no downloads listed for CUIT)
As Aniket mentioned, Coded UI is only available for the Ultimate and Premuim editions. There is also a Test pro edition that has a limited number of Testing tools. Some of them can be used to initially describe your tests and the later automate them with Coded UI.
The following links provides a feature comparison between the editions. Go to the Testing tools section, which specifies the availability of Coded UI in the specific editions:
http://www.visualstudio.com/en-US/products/compare-visual-studio-products-vs
I have heard about unit test in VS. Many persons of this community tells that create unit test will improve your OOP designs.
I really have no idea of it. Can you know a web site o example about how to create it?
Provided you have the correct version of Visual Studio (I believe it's a minimum of Professional that includes the ability to Unit Test), you just create a new project (preferably using the Test template). Referencing your code that you want to Unit Test, you write TestMethods that will Assert() what you require to be true.
You can also pull up the Test View, which will list out all of your Unit Tests so you can Run/Debug them on the fly.
A Unit Test is really just a code library that uses the Microsoft.VisualStudio.TestTools.UnitTesting namespace (Note: this is for MSTest, which ships with VS. There are many other Unit Testing tools/libraries out there).
For further details, please see this MSDN article: Walkthrough: Creating and Running Unit Tests.
You definitely do not HAVE to use the Visual Studio test tools. I have heard from various sources that the test engine is slow compared to NUnit.
I'd say NUnit is probably the most-used unit test engine for .Net. xUnit, its successor (by the same team I believe) is also gaining popularity.
Are you asking about unit tests specifically, or about test-driven development? Do you know? Unit tests are a technique - and many including myself would say a vital one. Test-driven development is a philosophy. Therefore the latter is likely to need buy-in from your team.
If I'm not mistaken, NUnit is the de-facto standard for unit testing, but I've just downloaded it, wrote a simple test, and then apparently I have to fire up the GUI and load my .exe assembly, which simply failed.
I tried editing
C:\Program Files (x86)\NUnit 2.5.7\bin\net-2.0\nunit.exe.config
As suggested in this question, but that didn't work either, so I tried downloading the nunit source code and compiling it in vs2010, but it doesn't even compile. Says punit.framework.dll could not be found. That solution says "does not contain a definition for AllTestsExecuted", so I'm getting a little frustrated here. You'd think there would be an easy-to-use-and-get-running framework for .net 4, no?
So my question is, how do I either get NUnit working, or is there another framework that will cause me less agony?
You don't have to use the NUnit GUI to run your tests. You can use TestDriven.NET from within Visual Studio. Also, if you happen to be using Resharper, that has a unit test runner which works with NUnit also.
If you're not doing anything out of the ordinary, I recommend Microsoft's Unit Testing Framework. I find it's VS integration too easy to even worry about NUnit. I agree NUnit seems to be the defacto standard, but if you're looking for something quick and easy. Microsoft's way is the easiest for a typical Visual Studio programmer IMHO.
I am not a C# programmer (fortunately ;-) ) but I've heard good things about xUnit. Tests can be run pretty much however you want (command line, GUI, Visual Studio integration, and more) and it looks reasonable simple to use.
For NUnit's GUI test runner, make sure you've selected the right framework version. Its in the "File" menu. If your test or any dependencies are 32-bit be sure you're running the 32bit version of the test runner.
Testdriven.net is a better test runner, but I like using NUnit's GUI runner too at times.
NUnit is infact very simple to use, so I would say that it's more likely that you are making a mistake somewhere, not the software.
Make sure you follow this guide.
Ensure that you have the [TestFixture] and [Test] attributes in the correct places and all the relevant assemblies referenced.
Make sure that you are loading the correct dll in the NUnit GUI.
If its the GUI that is the issue, you can use Resharper's unit testing feature in stead.
If you use Visual Studio 2010, you can use MSTest. Just click CTRL + ALT + R and it will run your tests and show the results in Visual Studio itself.
That same test-runner will also work for NUnit, if I am not mistaken.
I come from a Java/Eclipse background and I fear that I am spoiled by how easy it is to get JUnit and JMock running in Eclipse, and have that GUI with the bar and pass/fail information pop up. It just works with no hassle.
I see a lot of great options for testing in C# with Visual Studio. NUnit looks really nice because it contains unit and mock testing all in one. The trouble is, I can't figure out how to get the IDE display my results. The NUnit documentation seems to show that it doesn't automatically show results through the VS IDE. I found http://testdriven.net/, which seems to trumpet that is makes VS display these stats and work with multiple frameworks, but it isn't open source.
Is there anyway to get unit and mock testing working with the VS IDE like it does in Java with Eclipse?
On installing NUnit you get an NUnit.exe - use this to open and run your tests. It has an UI and shows pass/fails and shows output.
You can add a build action in Visual Studio that on a specific testing configuration will build, then immediately invoke NUnit on that dll.
EDIT: (more details)
In test project:
Project Properties -> Debug (set a build configuration - I use "NUnitDebug")
Start Action -> "Start external program": C:\Program Files\NUnit 2.5.3\bin\net-2.0\nunit.exe (use your own path)
Start Options -> Command line arguments: MyTestProject.dll (replace with the name of your DLL)
EDIT2: As brendan said, Moq is a good mock framework that can be used.
Resharper will let you do this and has a nice UI. I believe the core of it is NUnit. For the mock stuff you'll want to use Moq.
Resharper is not free/open source but is so worth the price.
If you are looking for something like Eclipse/JUnit, you shouldn't have tried Microsoft product line.
But the good news is that SharpDevelop has such nice integration with NUnit and it is open source. However, it aims as an alternative to VS, not an addon for VS.
You could read ASP.NET MVC Test Framework Integration Walkthrough and run your tests from the VS test runner.
Have you tried using the Testing projects in Visual studio? They're practically identical to nUnit, and can be run simply by hitting F5.
For mocking, chose whichever suits you, We're looking at Moq for Silverlight support.
I am doing on a project to built automatic GUI testing for graphical application in .NET. I will use C# but i am trying to reading to get some ideas. But I don't have any idea on how to record and replay back. So can you give me your ideas.
Here's a blog from the visual studio team that goes over this exact topic. It's about how they tested pre-wpf and post-wpf.
This post covers an overview of techniques that we used to create and maintain automated user interface regression tests for Visual Studio. Regression tests are a type of software test that, collectively, aim to be an oracle of expected functionality for the target application, run often against new builds of product – they aim to uncover regressions in behavior introduced in a new build.
Visual Studio Blog
Selenium RC!
There is also the TFS Test that has web tests, which tie into load test. Nice platform, but if you are not already using TFS then it is not worth it.
Frankly, I don't think there is a good answer out there for this. There are two options, however, that work okay:
Visual Studio Test Edition (as durilai suggested)
Telerik's Web Testing (both a free version and a version with a cost but depending on your UI, this may or may not work)
A good (commercial) C#-based product is Ranorex, it may do what you need.
Have you updated your Visual Studio to 2010 version? It has a build-in coded-ui automated testing feature, which could be used to record and replay back the test for win form.
Selenium
Watin
are some options that come to mind
To test C# apps there are a few things we have had success with:
PowerShell
TestPlant
and possibly would be the new VSTS 2010 features, though we haven't tried them