# Odd unit test error **URL:** \ **Category:** Ruby\ **Created:** [October 21, 2008, 8:58pm UTC](https://www.ruby-forum.com/t/odd-unit-test-error/151456 "2008-10-21T20:58:45Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Kenneth\_McDonald](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/dc4da7/32.png) [@Kenneth\_McDonald](https://www.ruby-forum.com/u/Kenneth_McDonald)\ **Post date:** [October 21, 2008, 8:58pm UTC](https://www.ruby-forum.com/t/odd-unit-test-error/151456/1 "2008-10-21T20:58:45Z")
On one of my unit test errors, I’m getting the error message: NameError: uncaught throw ‘invalid\_test’ It’s the part about “uncaught throw ‘invalid\_test’” that I don’t get. That sounds like an error from the unit test framework itself. Can anyone shed any light on what this means? Thanks, Ken ---
**Author:** ![Kenneth\_McDonald](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/dc4da7/32.png) [@Kenneth\_McDonald](https://www.ruby-forum.com/u/Kenneth_McDonald)\ **Post date:** [October 21, 2008, 11:21pm UTC](https://www.ruby-forum.com/t/odd-unit-test-error/151456/2 "2008-10-21T23:21:04Z")
Kenneth McDonald wrote: > On one of my unit test errors, I’m getting the error message: > > NameError: uncaught throw ‘invalid\_test’ > > It’s the part about “uncaught throw ‘invalid\_test’” that I don’t get. > That sounds like an error from the unit test framework itself. Can > anyone shed any light on what this means? Can you post the whole backtrace? And what code causes this error? The only instance of it I can see in the source is test/unit/testcase.rb line 43, which looks like either you’re trying to invoke a test which doesn’t exist, or you’re invoking a test with invalid arity like def test\_foo(x) … end But normally the framework would never try to invoke such a method anyway, so it’s strange. You could try running with ruby -w, might give you some more clues.