How to fail a test that is stuck in an infinite loop?

Question

I have some code that produces an infinite loop. Now I need to write a test that will fail after about 200ms. 200ms will indicate that the code is in the infinite loop.

For example:

public void CodeUnderTest() {    while(true)    {     } }  

Answer 1

When using MSTest you can use an attribute

[TestMethod] [Timeout(200)] 

See How to force tests to stop running

You can set time limits with which the execution of a test or a test run will comply. You might need to do this, for example, if you work in a test lab and need a test run to complete by a certain time of day.

Another scenario for the use of time limits is that of non-responsive code.

Answer 2

what about:

Task.Create(CodeUnderTest).Wait(TimeSpan.FromSeconds(1)); 

or:

Task.Factory.StartNew(CodeUndertest).Wait(TimeSpan.FromSeconds(1)); 

or:

Task.Factory.StartNew(() => CodeUndertest(arg1,arg2,arg3...)).Wait(TimeSpan.FromSeconds(1));