Andrew Stopford's Weblog

MbUnit, repeating tests.

MbUnit (2.3 onwards) has support for repeating tests either in the same thread or in concurrent threads.

1. [Test]
2. [Repeat(10)] // this will make the RepeatedTest executed 10 times
3. public void OneThreadRepeatedTest()
4. { ... }
6. [Test]
7. [ThreadedRepeat(10)] // this will make the RepeatedTest executed in 10 concurrent threads
8. public void ConcurrentThreadRepeatedTest()
9. { ... }

How this is used needs careful consideration when used with other method attributes e.g.

1. [Test]
2. [Repeat(10)]
3. [ExpectedException(typeof(Exception))]
4. public void RepeatAndThrow()
5. { ... }
7. [Test]
8. [ExpectedException(typeof(Exception))]
9. [Repeat(10)]
10. public void ThrowWhileRepeating()
11. { ... }

Here RepeatAndThrow will run the test 10 times and expect each test to throw an exception. However ThrowWhileRepeating will also run 10 times and expect at least 1 of the tests to throw an exception.