A method annotated with `[TestInitialize]` is run before each test.
Likewise `[TestCleanup]` is after each test.

`[ClassInitialize]` and `[ClassCleanup]` are run before and after the &#39;suite&#39; of tests inside the TestClass.

Visual Studio will use MSTest, that is Microsoft&#39;s unit testing framework, it is similar to NUnit. In fact, most of them are similar in concepts but different syntax.

In order to view the comparaison, the creators of xUnit (another unit testing framework) have a list here:

https://xunit.net/docs/comparisons

More specifically what you asked for, `TestInitialize` is MSTest&#39;s equivalent to NUnit&#39;s `Setup`, and the same for `TestCleanup` and `TearDown`.

One thing to note, I would stay with NUnit if you are attempting to do automated unit testing or some kind of continuous integration. The main reason the various `*unit` frameworks are favoured over MSTest is because you *must* have a copy of Visual Studio on the machine you are running the tests on. Fine for your own local machine, different story for a CI server. Visual Studio is a pig of a program, and to install it on a server (which is generally supposed to be as lightweight and fast as it can be), just to run tests is a bit annoying.


I want to use Google Play Services API in my application, but when I open the emulator to test my application it sends me a message that says &quot;Google Play Services must be downloaded&quot;. I know that occurs because I coded this test in my `MainActivity` in the method `onResume()`.  
I want to know how I can install Google Play Services in my emulator, because soon I will need to test my maps.

How to download Google Play Services in an Android emulator?

Attempting to do some work on an Android project I haven&#39;t worked on for a couple of months, yet every time I attempt to build the project Eclipse throws up a dialog saying:

    &#39;Building workspace&#39; has encountered a problem

    Errors occurred during the build.
    Errors running builder &#39;Android Pre Compiler&#39; on project &#39;XXX&#39;
    java.lang.NullPointerException

I&#39;m running Eclipse on a Mac with an Android project build target 4.0.3 (API Level 15) and I&#39;ve the following versions of things installed

 - Eclipse - 3.7.2
 - Android Development Tools - 21.0.1
 - Android SDK - up to 17 

I&#39;ve already tried a few things, like starting a whole new workspace, installing this &#39;Subversive SVN JDT Ignore Extensions&#39;, upgrading everything, making sure I don&#39;t have any files without extensions in my source folder (or anywhere else), ensuring my Java compiler is 1.6 and switching it off and on again.

**EDIT**

Here&#39;s the stack trace from the Eclipse error log for this problem:

    java.lang.NullPointerException
	at com.android.ide.eclipse.adt.internal.build.builders.PreCompilerBuilder.build(PreCompilerBuilder.java:673)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:728)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:199)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:239)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:292)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:295)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:351)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:374)
	at org.eclipse.core.internal.resources.Workspace.buildInternal(Workspace.java:513)
	at org.eclipse.core.internal.resources.Workspace.build(Workspace.java:432)
	at org.eclipse.ui.actions.BuildAction$1.runInWorkspace(BuildAction.java:305)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

And the session data:

&lt;pre&gt;
eclipse.buildId=M20120208-0800
java.version=1.6.0_37
java.vendor=Apple Inc.
BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=en_US
Framework arguments:  -keyring /Users/onemick/.eclipse_keyring -showlocation
Command-line arguments:  -os macosx -ws cocoa -arch x86_64 -data /Projects/_EclipseWorkspace -keyring /Users/onemick/.eclipse_keyring -showlocation
&lt;/pre&gt;

**ANOTHER EDIT**

OK, so more searching led me to [this page]( http://code.google.com/p/android/issues/detail?id=43057), which suggests that this issue is definitely related to the presence of files without an extension in my project - however I don&#39;t know which file and for the life of me I can&#39;t find any in that project! 

I&#39;d even be happy if someone could explain what this error means and how I might get more debug info about the underlying error.

Eclipse / Android : &quot;Errors running builder &#39;Android Pre Compiler&#39; on project...&quot;

Instead of [SetUp] and [TearDown] in Nunit what is the alternative in Visual Studio Ultimate 2010 Unit Testing. In Nunit you can imagine setup and teardown methods are as constructors and destructors for the tests in our class.

Visual Studio Unit Testing: SetUp and TearDown

<p>Instead of [SetUp] and [TearDown] in Nunit what is the alternative in Visual Studio Ultimate 2010 Unit Testing. In Nunit you can imagine setup and teardown methods are as constructors and destructors for the tests in our class.</p>


First time this happens to me.

Ran the build and got this error.

When I rebuild other `sln` all works fine.

&gt; Error	1	The build stopped unexpectedly because of an internal failure.
&gt; Microsoft.Build.Exceptions.BuildAbortedException: Build was canceled.
&gt; Failed to successfully launch or connect to a child MSBuild.exe
&gt; process. Verify that the MSBuild.exe
&gt; &quot;C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe&quot; launches
&gt; successfully, and that it is loading the same microsoft.build.dll that
&gt; the launching process loaded. If the location seems incorrect, try
&gt; specifying the correct location in the BuildParameters object, or with
&gt; the MSBUILD_EXE_PATH environment variable.    at
&gt; Microsoft.Build.BackEnd.NodeProviderOutOfProc.CreateNode(Int32 nodeId,
&gt; INodePacketFactory factory, NodeConfiguration configuration)    at
&gt; Microsoft.Build.BackEnd.NodeManager.AttemptCreateNode(INodeProvider
&gt; nodeProvider, NodeConfiguration nodeConfiguration)    at
&gt; Microsoft.Build.BackEnd.NodeManager.CreateNode(NodeConfiguration
&gt; configuration, NodeAffinity nodeAffinity)    at
&gt; Microsoft.Build.Execution.BuildManager.PerformSchedulingActions(IEnumerable`1
&gt; responses)    at
&gt; Microsoft.Build.Execution.BuildManager.HandleNewRequest(Int32 node,
&gt; BuildRequestBlocker blocker)    at
&gt; Microsoft.Build.Execution.BuildManager.IssueRequestToScheduler(BuildSubmission
&gt; submission, Boolean allowMainThreadBuild, BuildRequestBlocker
&gt; blocker)	D:\MaM\Server\ClientServices\Dev\ClientService
&gt; 1.4\Conduit.Mam.ClientServices.Common.Initizliaer\Conduit.Mam.ClientServices.Common.Initizliaer.csproj	Conduit.Mam.ClientServices.Common.Initizliaer



Failed to successfully launch or connect to a child MSBuild.exe process. Verify that the MSBuild.exe

So, as the title reads, I have a VS2010 solution with ~50 projects in it right now. If I make a change to a &quot;top level&quot; project that nothing references then VS still rebuilds all 50 projects. I&#39;m running Visual Studio 2010 Ultimate without any add-ons. I am using ILMerge to consolidate all of the projects into a single file.

I have verified this by checking the time stamps of the lower level dlls and see that they are indeed rebuilt even though their code wasn&#39;t touched.

I&#39;ve read all responses and comments for:

https://stackoverflow.com/questions/5345784/visual-studio-2008-keeps-rebuilding

https://stackoverflow.com/questions/2991972/visual-studio-keeps-building-everything

https://stackoverflow.com/questions/6901683/strange-vs2010-build-glitch-occurs-in-my-solution?lq=1

https://stackoverflow.com/questions/5429781/reasons-for-c-sharp-projects-to-rebuild-in-visual-studio

But most of them just offer suggestions on unloading projects to speed up build times but nothing concrete as to a fix. I&#39;m trying to figure out why VS thinks these dependent projects need to be rebuilt when they don&#39;t and fix it.

I&#39;ve turned on &#39;Tools &gt; Options &gt; Projects and Solutions &gt; Build and Run &gt; Only build startup projects and dependencies on run&#39; but with no effect.

Also, if I just rebuild a &quot;mid-level&quot; project that only has 8 (in)direct dependencies then it still builds all 8 projects even though ILMerge isn&#39;t invoked and none of the dependent projects have been modified.

Thank you everyone for any insight you may be able to provide.

**Added**

To test some of the suggestions I created a new WinForms project from scratch. I then created two new projects inside that solution. I copied all of the code and resources (not project file) from my two &#39;lowest level&#39; projects into the two brand new projects (I did this by dropping the files and folders from Explorer onto the project in Visual Studio).

The lowest project, let&#39;s call it **B**, did not reference any other project. The next project, **A**, referenced **B** only. So once I added the required .NET and external assembly references to the projects then the solution would build.

I then had my new WinForm project reference **A** and did a full build. So the ref chain is:

**WinForm** -&gt; **A** -&gt; **B**

I then modified **WinForm** _only_ and did a standard build (F6). As before, Visual Studio rebuilt all three projects.

After some systematic eleminiation of source files in project **B** I found that if I removed my `Resources.Designer.cs` and `Resources.resx` (and commented out the code that made use of the `.Properties.Resources` object of those resources) then a modification of **WinForm** would no longer rebuild the entire solution and would only rebuild **WinForm**.

Adding the `Resources.resx` and `Resources.Designer.cs` back to project **B** (but leaving the referenced code commented out so that nothing was making use of the resources) would re-introduce the full build behavior.

To see if perhaps my resource files were corrupted, I deleted them again and then created a new one (via Project Properties -&gt; Resources) and re-added the same resource as before, which was a single Excel file. With this setup the full rebuild would still occur.

I then removed the single resource, but left the resource file in project **B**. Even with no resources added, but the resource file still in the project, the full (unneeded) rebuild would occur.

It appears that just having a resource file added to a (.NET 3.5) project will cause Visual Studio 2010 to always rebuild that project. Is this a bug or intended/expected behavior?

Thanks all again!

Visual Studio Rebuilds unmodified projects

Just a post to help those guys trying to do that, since I don&#39;t have a blog.

This works for linux too. Feel free to edit it and improve it.

How to compile Qt 5 under Windows or Linux, 32 or 64 bit, static or dynamic on Visual Studio or g++

A colleague of mine asked if there is unsigned double, and I said there isn&#39;t, but I still checked it, and this compiles in [Microsoft Visual C++ 2010][1]:

	unsigned double a;
	double b;
	printf(&quot;size_a=%d size_b=%d&quot;, (int) sizeof(a), (int) sizeof(b));

It outputs `size_a=4 size_b=8`. That is, four bytes for `unsigned double`, and eight bytes for `double`.

  [1]: http://en.wikipedia.org/wiki/Visual_C++#32-bit_and_64-bit_versions


Why is sizeof(unsigned double) equal to 4?

Using Visual studio 2010 I got problems when double-clicking, for example a config file (*.config). Visual Studio would open but give me a error message about parameters. If I simple try to drag and drop a file that Visual Studio usually can read in to it, the icon will give me the &quot;not possible icon&quot;?

I have now installed Visual Studio 2012 and it has the same problem?!

This makes my work a lot harder, it should be easy to just drag &amp; drop files into Visual Studio, but it&#39;s not so? Now I have to manually find the file with the file menu?

Please note, I have re-installed the computer before installing Visual Studio 2012.

Visual Studio does not let me drag drop items into it?

I am trying to write some iOS logic tests against classes in my project that use functionality from some of the libraries in my podspec. I am using the standard unit test bundle provided in Xcode (although not Application Tests, just Unit Tests).

For example, I use Magical Record, and I have that library linked in my podspec. It is present in the Pods project in my workspace, and works as expected when the app is running in the simulator or on the device. When I try to link to the test the object that uses Magical Record, however, I get a linker error stating that it can&#39;t find the selectors from Magical Record. I have tried updating my HEADER_SEARCH_PATH in my logic testing bundle, even hard coding it to the headers directory created by CocoaPods, but no luck.

I can run unit tests against classes that do not use CocoaPods libraries with no problem.

Am I going about this wrong? Should I be doing something else to get the compiler to see the CocoaPods libraries?

Libraries not found when using CocoaPods with iOS logic tests

I am pulling my hair out trying to figure out how to mock a constructor using sinon.  I have a function that will create multiple widgets by calling a constructor that accepts a few arguments.  I want to verify that the constructor is called the correct number of times with the correct parameters, but I don&#39;t want to actually construct the widgets.  The following links seemingly explain a straightforward way of mocking the constructor, however it does not work for me:

https://stackoverflow.com/questions/9347631/spying-on-a-constructor-using-jasmine

http://tinnedfruit.com/2011/03/25/testing-backbone-apps-with-jasmine-sinon-2.html

When I make the following call to stub the constructor:

    sinon.stub(window, &quot;MyWidget&quot;);

I get the following error:

    Uncaught TypeError: Attempted to wrap undefined property MyWidget as function 

When debugging in Chrome I see MyWidget shows up in the Local section of the Scope Variables, however there is not MyWidget property off of window.

Any help would be greatly appreciated.

Javascript: Mocking Constructor using Sinon

I have the PTI Eclipse plugin installed.

There is a possibility to change `PDepend`, `CodeSniffer` and `UnitTest`

When I try right-clicking on any file I have a `Mess Detector` option as well but nothing happens when I click it. And after searching all configuration options, I and can&#39;t find any settings for `PHPMD`.

Does anyone know how to solve it?

PHP Mess Detector for Eclipse

I&#39;m writing directive tests for AngularJS with Jasmine, and using templateUrl with them: https://gist.github.com/tanepiper/62bd10125e8408def5cc

However, when I run the test I get the error included in the gist:

    Error: Unexpected request: GET views/currency-select.html

From what I&#39;ve read in the docs I thought I was doing this correctly, but it doesn&#39;t seem so - what am I missing here?

Thanks

Jasmine tests AngularJS Directives with templateUrl

Does anyone have an example of how to unit test a provider?

For example:

__config.js__

&lt;!-- language: lang-js --&gt;

    angular.module(&#39;app.config&#39;, [])
      .provider(&#39;config&#39;, function () {
        var config = {
              mode: &#39;distributed&#39;,
              api:  &#39;path/to/api&#39;
            };

        this.mode = function (type) {
          if (type) {
            config.isDistributedInstance = type === config.mode;
            config.isLocalInstance = !config.isDistributedInstance;
            config.mode = type;
            return this;
          } else {
            return config.mode;
          }
        };

        this.$get = function () {
          return config;
        };
      }]);

__app.js__

&lt;!-- language: lang-js --&gt;

    angular.module(&#39;app&#39;, [&#39;app.config&#39;])
      .config([&#39;configProvider&#39;, function (configProvider) {
        configProvider.mode(&#39;local&#39;);
      }]);

`app.js` is using in tests and I see already configured `configProvider` and I can test it as a service. But how can I test the ability to configure? Or it does not need at all?

How to test AngularJS custom provider

I&#39;m trying to assert the equality of two `System.Drawing.Size` structures, and I&#39;m getting a format exception instead of the expected assert failure.

    [TestMethod]
    public void AssertStructs()
    {
    	var struct1 = new Size(0, 0);
    	var struct2 = new Size(1, 1);

    	//This throws a format exception, &quot;System.FormatException: Input string was not in a correct format.&quot;
    	Assert.AreEqual(struct1, struct2, &quot;Failed. Expected {0}, actually it is {1}&quot;, struct1, struct2); 

    	//This assert fails properly, &quot;Failed. Expected {Width=0, Height=0}, actually it is {Width=1, Height=1}&quot;.
    	Assert.AreEqual(struct1, struct2, &quot;Failed. Expected &quot; + struct1 + &quot;, actually it is &quot; + struct2); 
    }
    
Is this intended behavior? Am I doing something wrong here?


Why does this assert throw a format exception when comparing structures?

I have seen in a Microsoft video about Visual Studio update 2 regarding these attributes. However, I can&#39;t find any other information about them and can&#39;t get a project to build with them.

Does anyone know anything about these attributes or how to get them working?

    [DataTestMethod]
    [DataRow(&quot;a&quot;, &quot;b&quot;)]
    [DataRow(&quot; &quot;, &quot;a&quot;)]
    public void TestMethod1(string value1, string value2)
    {
        Assert.AreEqual(value1 + value2, string.Concat(value1, value2));
    }

DataTestMethod and DataRow attributes in MSTEST

I have a base class for my tests which is composed in the following way:

    [TestClass]
    public abstract class MyBaseTest
    {
       protected static string myField = &quot;&quot;;

       [ClassInitialize]
       public static void ClassInitialize(TestContext context)
       {
           // static field initialization
           myField = &quot;new value&quot;;
       }
    }
Now I am trying to create a new test that inherits from the base, with the following signature:

    [TestClass]
    public class MyTest : MyBaseTest
    {
       [TestMethod]
       public void BaseMethod_ShouldHave_FieldInitialized()
       {
           Assert.IsTrue(myField == &quot;new value&quot;);
       }
    }
The `ClassInitialize` is never called by the child tests ... What is the **real and correct** way of using test initialization with inheritance on MsTest?

MsTest ClassInitialize and Inheritance

My company is upgrading our Visual Studio 2012 to 2013 Premium. In the midst of this, we are also looking to start automating our tests using [Visual Studio Team Services][1]

I have read a couple of MSTest vs nUnit posts and articles in the past but most of it compares the older version of MSTest. Also, nUnit had a lot of favourable reviews as compared to MSTest.

My question is, considering Microsoft&#39;s commitment towards the ALM, Agile practices and all the new stuff they&#39;ve added into VS2013 Premium and Visual Studio Team Services to facilitate and encourage automated testing, how does MSTest compare to nUnit? 

What other considerations should I take before making a decision on a testing framework to use?


  [1]: https://www.visualstudio.com/products/tfs-overview-vs

Visual Studio 2013 MSTest vs NUnit

What is the difference between `TestInitialize` vs `ClassInitialize` in MSTest?  What are the pros cons of each?

I&#39;m under the impression that `TestInitialze` should run with EACH test, every time?  Is that correct?  And that `ClassInitialize` will run every time a new instance of any class?  

Content Type	Original Author	Original Content on Stackoverflow
Question	Etibar - a tea bar	View Question on Stackoverflow
Solution 1 - Visual Studio-2010	Mikeb	View Answer on Stackoverflow
Solution 2 - Visual Studio-2010	Arran	View Answer on Stackoverflow

Visual Studio Unit Testing: SetUp and TearDown

Visual Studio-2010 Problem Overview

Visual Studio-2010 Solutions

Solution 1 - Visual Studio-2010

Solution 2 - Visual Studio-2010

Eclipse / Android : "Errors running builder 'Android Pre Compiler' on project..."

How to download Google Play Services in an Android emulator?

Attributions