Python 3 support for testing

[niharikasingh]

Behavior driven testing currently relies on Lettuce. However, Lettuce doesn't seem to work on Python 3, based on my difficulties using it and this issue:

Aloe seems to be a good replacement for Python 3 users. I was able to get Aloe up and running with only the following minor changes. Would it be possible to make these changes and mention them in the documentation?

docassemble.py

1. tests/features/steps/docassemble.py renamed to tests/features/__init.py__
2. from lettuce import step, world changed to from aloe import step, world
3. All the steps changed to use regexes instead of strings. So: @step('I spend at least ([0-9]+) seconds? on each page') changed to @step(r'I spend at least ([0-9]+) seconds? on each page')

terrain.py

1. All lettuce imports replaced with from aloe import *
2. The tear_down() function didn't work out of the box. I made it work by removing functionality, but it might be possible to work while retaining all the original functionality, it would just require some investigation. My current working function looks like:

def tear_down():
    world.browser.quit()

Documentation

1. The documentation will need to be updated to account for the above changes.

Please let me know if you have any questions about the above. I'm happy to help implement the above changes if the maintainers agree they are warranted.

[jhpyle]

Thanks! I made these changes in 0.5.38. Let me know if you find any problems with it.

[niharikasingh]

Just one comment - I had to move the location of docassemble.py to get this to work in my repo. It went from tests/features/steps/docassemble.py to tests/features/__init.py__. If you've tested that your way works too, then that's fine!

[jhpyle]

Did you try creating empty __init__.py files in tests/features and tests/features/steps? That was what worked for me.

[jhpyle]

I am keeping this issue open because maybe it makes sense to transition to pytest-bdd instead of aloe? I don't know; I haven't tried pytest-bdd yet but it seems to be recommended.

[niharikasingh]

Did you try creating empty __init__.py files in tests/features and tests/features/steps? That was what worked for me.

I didn't try that! If it works, that's great. I'll try it next time I work on my docassemble project.

[jhpyle]

I migrated all testing to Aloe and it seems to work, so I am closing this issue. Thanks!