Introduction
Live code coverage quickly point to failure nodes for reproducible cases. To quickly train QA in the effectiveness of EMMA I have written a tool that mimics Russian Roulette. There are size buttons that call six methods one of which is at random chosen to fail.
Here is the walk though on how to find the method that fails via code coverage.
Walk through
Open the qa-helper in one browser window
Open the offending tool qa-fails in another browser window