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Question

Ignore Test or TestFixture based on condition

Answer 1

+4 A:

Use some code in your test or fixture set up method that detects if the simulation software is installed or not and calls Assert.Ignore() if it isn't.

[SetUp]
public void TestSetUp() 
{
     if (!TestHelper.SimulationFilesExist())
     {
         Assert.Ignore( "Simulation files are not installed.  Omitting." );
     }
}

or

[TestFixtureSetUp]
public void FixtureSetUp()
{
     if (!TestHelper.SimulationFilesExist())
     {
         Assert.Ignore( "Simulation files are not installed.  Omitting fixture." );
     }
}

tvanfosson 2009-10-20 12:40:57

Thanks for the quick response! But this will result in a failed test, not really what I want. The fact that test did not executed does not mean it should indicate failed (in my case).

Koen 2009-10-20 13:42:08

No. Assert.Fail will result in a failed test. Assert.Ignore() does exactly what you want it to do. It causes the test to be ignored at runtime. Quoting from the docs: "The Assert.Ignore method provides you with the ability to dynamically cause a test or suite to be ignored at runtime."

tvanfosson 2009-10-20 13:58:31

You're right tvanfosson. When you only run the testfixture it will indicate failed, but when you run a bunch of testfixtures all together the testfixture will be omitted and the end result is SUCCESS!! Thanks a lot.

Koen 2009-10-21 06:54:05

Depending on which version of the NUnit framework you're using, there is also Assert.Inconclusive. This will also result in a successful result, but flag that those tests may fail under other conditions.

Richard J Foster 2009-10-23 12:15:38

Answer 2

+1 A:

NUnit also gives you the option to supply a Category attribute. Depending on how you are launching your tests, it may be appropriate to flag all the tests that require the simulator with a known category (e.g. [Category("RequiresSimulationSoftware")]). Then from the NUnit Gui you can choose to exclude certain categories. You can do the same thing from the NUnit command line runner (specify /exclude:RequiresSimulationSoftware if applicable).

Hope this (or the previous answer by tvanfosson) helps.

Richard J Foster 2009-10-20 12:47:41

Hey, I thought of this solution. The downside of this solution is that it is caller specific. We sometimes execute the tests from within VStudio and the other time from a script. Both should be altered and maintained.

Koen 2009-10-20 13:46:12

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Ignore Test or TestFixture based on condition

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