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.
Related
I have made a project in visual studio and also implemented unit testing.
The code working fine with the unit testing.
Now I have a doubt that is it possible to implement unit testing outside the visual studio environment such that I only use the exe generated by my project and test it for multiple cases?
I am looking for an option which can utilise my current unit testing implementation
I am new to unit testing, so any help would be appreciated
thanks in advance
Installing MSTest without Visual Studio is not quite trivial thing. This tool was very useful to me in this regard.
Originated from here
You can use outside library like NUnit, there is manager to run your test
If from outside, you mean outside of Visual Studio IDE, then you can use mstest.exe which VS internally uses. This is stand alone in sense, that host doesn't need VS installed. Thus e.g. a build system can call this and do unit test towards the end of build.
If you are using the Microsoft test framework, you can run MSTest.exe from the command line.
If you set up your test classes as per this SO answer then you can run them in either MSTest or NUnit, based on a compilation option. Hope this helps!
Using both MSTest and NUnit?
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'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.
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'm developing an ASP.NET 2.0 app using Visual Studio 2008.
If I want to run a really quick test on a method that's way in my back-end, is there a way for me to just call a main function in that class via command line?
Thanks
Short answer: NUnit. You may not know how to use it, but you should. It's not hard to use and learn. It's fast and has a GUI.
That's what a test project is made for.
You should get TestDriven.NET add-in (free for personal use). Basically, it's a bundle of Test Driven Development tools such as NUnit, which integrates with your Visual Studio. One thing I discovered about it, is that it allows you to run any method in your code, just by right-clicking on it and choosing the menu item "Run Test(s)", or "Test With -> Debugger" if you want to debug the method.
Hope that helps.
The answer is no, You cannot do that. You can only have one main function per assembly.
The fact is, you shouldn't do testing like that. C# is not Java, regardless of its origin in Java.
Use NUnit or MSUnit and build unit tests instead. They'll test your methods for you without needing deployment to a website or anything like that. That's the best way to test a method. Here are some links:
NUnit
MSUnit
Simply create a test project and test it from there. If not you can create a console application and test it from there by referencing the proper project(considering your code to test is in an assembly), which in a way will be your test project.