geek + red sox + cooking = peter ryan

I just spent at least 10 minutes trying to determine the exit code for a command just executed from the command prompt. This seems like an overly simple thing to do but one that is not very well documented. The answer is to use the errorlevel environment variable.

runMyCommand.exe


After completion…

echo %errorlevel%


displays the actual code returned by the process.

Interesting doing a SET does not display this environment variable.

Lately I have been working on implementing an acceptance testing stack using the following:

• PyFit
• FitNesse
• IronPython

I wasn’t the first person to try PyFit on IronPython and based on this suggestion we have switched from vanilla Iron Python to the Iron Python Community Edition for its almost out of the box compatibility with PyFit.

Anyway I ran into the following ERROR when using PyFit with Iron Python. Preparing a test runner as so:


Environment
IRONPYTHONPATH=c:\tools\pyfit\fit


import sys
import fepy
fepy.install_option('ast')
from fitnesse.FitServerImplementation import TestRunner

Causes the FitServerImplementation not to be found:


FitNesse cannot be started...
Port 80 is already in use.
Use the -p command line argument to use a different port.
Traceback (most recent call last):
File test_runner.py, line 4, in Initialize
File , line 0, in __import__##4
ImportError: No module named FitServerImplementation

This is unexpected because I am not trying to launch FitNesse and PyFit is on the IRONPYTHONPATH. What I discovered was that instead of using the IRONPYTHONPATH which essentially appends PyFit inserting PyFit at the beginning results in a correct PyFit resolution.


IRONPYTHONPATH= #No PyFit Reference


import sys
import fepy

fepy.install_option('ast')
fitpath = "PathTo/PyFIT/fit"
sys.path.insert(0, fitpath)

from fitnesse.FitServerImplementation import TestRunner

Now the TestRunner (or whatever PyFit class be it a fixture, runner, etc) is found. I am not sure why this is the case (my ignorance of python / iron python doesn’t hep) and would appreciate any insights.