Retry Attribute

RetryAttribute is used on a test method to specify that it should be rerun if it fails, up to a maximum number of times.

Notes:

1. It is not currently possible to use RetryAttribute on a TestFixture or any other type of test suite. Only single tests may be repeated.

2. Since a parameterized test method represents a suite, RetryAttribute is ignored when it appears on such a method.

3. If a test has an unexpected exception, an error result is returned and it is not retried. Only assertion failures can trigger a retry.