CODEWITHSUNDEEP
visual-studio-2010mstest
Nilzor
Nilzor

Reputation: 18603

How does Visual Studio /mstest identify test projects?

Say (100% hypothetically) that I've accidentally added a unit test project as project type "Class library" to a VS2010 solution. I've then added the assemblies needed to run it as a Unit Test project, but MSTest won't pick up on it when I hit "Run all tests in solution". What are the criterias here?

I had a couple of theories, which all have failed so far:

Anyone?

Upvotes: 19

Views: 12318

Answers (4)

Bbdrvr
Bbdrvr

Reputation: 11

The GUID solutions did not work for me in VS 2022. Turns out all I needed to do was edit the project file and add the IsTestProject value:

<PropertyGroup>
  <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
  <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
  <ProjectGuid>{553487BF-FC0B-4FC5-B25B-C8C89A13F4ED}</ProjectGuid>
  <IsTestProject>true</IsTestProject>
  <OutputType>Library</OutputType>
  .
  .
  .
</PropertyGroup>

Upvotes: 1

J. Steen
J. Steen

Reputation: 15588

In the project file, there's an XML element with the name ProjectTypeGuids, that holds a few GUIDs that denote test project. Example as follows.

<Project>
  <PropertyGroup>
    <ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
  </PropertyGroup>
</Project>

Here's a list of known project type GUIDs for Visual Studio 2010: http://onlinecoder.blogspot.com/2009/09/visual-studio-projects-project-type.html

In the example above, it shows the project to be of type Test and Windows (C#).

Upvotes: 36

jwg
jwg

Reputation: 5847

In case it helps anyone I had the opposite problem - I added a project as Unit Tests mistakenly. To change the type back to a normal Class Library I just removed the ProjectTypeGuids tags mentioned in the other answers altogether, presumably VS put back the correct ones.

Upvotes: 4

Padmalochan
Padmalochan

Reputation: 1090

  1. In Solution Explorer, right-click the project name and select Unload Project.
  2. Then right-click the project name again and select Edit ProjectName.csproj.

  3. Locate the ProjectTypeGuids element and following code.(If you will not find the ProjectTypeGuids element, just insert it)

    <Project> <PropertyGroup> <ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB}; {FAE04EC0-301F-11D3-BF4B-00C04F79EFBC} </ProjectTypeGuids> </PropertyGroup> </Project> .

  4. Save the changes, right-click the project, and then select Reload Project.

Upvotes: 4

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