NUnit - cleanup after test failure

Question

We have some NUnit tests that access the database. When one of them fails it can leave database in inconsistent state - which is not an issue, since we rebuild database for every test run - but it can cause other tests to fail in the same run.

Is it possible to detect that one of the tests failed and perform some sort of cleanup?

We don't want to write cleanup code in every test, we already do that now. I'd like to perfrom cleanup in Teardown but only if test failed, as cleanup might be expensive.

Update: To clarify - I would like tests to be simple and NOT include any cleanup or error handling logic. I also don't want to perform database reset on every test run - only if test fails. And this code should probably be executed in Teardown method but I am not aware of any way to get info if test we are currently tearing down from failed or was successful.

Update2:

        [Test]
        public void MyFailTest()
        {
            throw new InvalidOperationException();
        }

        [Test]
        public void MySuccessTest()
        {
            Assert.That(true, Is.True);
        }

        [TearDown]
        public void CleanUpOnError()
        {
            if (HasLastTestFailed()) CleanUpDatabase();
        }

I am looking for implementation of HasLastTestFailed()

Answer 1

Since version 2.5.7, NUnit allows Teardown to detect if last test failed. A new TestContext class allows tests to access information about themselves including the TestStauts.

For more details, please refer to http://nunit.org/?p=releaseNotes&r=2.5.7

[TearDown]
public void TearDown()
{
    if (TestContext.CurrentContext.Result.Status == TestStatus.Failed)
    {
        PerformCleanUpFromTest();
    }
}