When running MSTEST unit tests in debug mode, the execution stops in every expected exception that is thrown. My test looks like this
[TestMethod()]
[ExpectedException(typeof(ArgumentNullException))]
public void ShouldThrowExceptionWhenPassingNull()
{
object data = null;
target.CheckNull(data);
}
the target method looks like this:
public void CheckNull(object data)
{
if (ReferenceEquals(null, data))
{
throw new ArgumentNullException("data");
}
} // test run breaks here: ArgumentNullException was unhandled by user code
Did you try running the tests using ctrl-R ctrl-T
instead of ctrl-R T
?
EDIT If it's not a keyboard shortcut issue, then check out this link. You could try the following as noted there:
- Disable "break on user unhandled exceptions" for the exception types you you are encountering here (via Debug -> Exceptions)
- Disable "break on user unhandled exceptions" for all exceptions (via Debug -> Exceptions)
- Disable "Just My Code"