QUTest Failure Traceback Line Numbers

[harrisonmg]

This PR modifies the functionality of qutest.py to print the line number of the user script where a QUTest has failed.

Now, multiple line numbers will be printed - separated by colons - for each function call in the user script. This forms a traceback of line numbers starting at the highest function call in the user script, and ending at the user's call to a DSL function.

In an attempt to increase the robustness of this solution, the _traceback_lines() function also ensures that the call stack will not be indexed out of bounds.

[quantum-leaps]

Hi Harrison,
Thanks again for the contribution, but it seems to be giving diminishing returns. The line # of the first failure is quite valuable, but the value of quickly diminishes as you move up the call stack. Most test don't have deeply nested calls.

So, I feel that the marginal returns are not worth the trouble, and I'd skip this improvement.

Please don't get discouraged by this. It is simply my job to keep things as simple as possible.

--MMS

[harrisonmg]

Hi Miro,

I understand you reasons for keeping everything simple. I furthered this feature for personal use in my own large tests with nested calls, sometimes spanning multiple files.

Hopefully this PR, regardless of merge status, can still help others with use cases similar to mine.

Best,
Harrison