test_cli_parsing() tests fail when pytest is run with no flags

[baileythegreen]

Summary:

When running:

pytest

on its own, test_cli_parsing() fails. However, if one runs:

pytest -k cli_test_parsing

pytest -v

or anything command that has more than one element to the command line, those tests pass.

It seems to be related to this line in pyani_script.py:

# Catch requests for citation and version information
if sys.argv[1].startswith("-"):

Reproducible Steps:

Run pytest with no options.

Current Output:

IndexError: list index out of range

It is difficult to provide more complete information about the error as attempts to increase the verbosity eliminate the bug.

Expected Output:

Describe what you expect the output to be. It is also very useful to know the expected "correct" behavior on your systems.

pyani Version:

bleeding edge

installed dependencies

If you are running a version of pyani v0.3 or later, then please run the command pyani listdeps at the command line, and enter the output below.

Python Version:

3.8.10

Operating System:

macOS High Sierra

[widdowquinn]

The obvious workaround is to use pytest -v in preference to pytest.

A good fix may be to catch sys.argv just ahead of the line you indicate and check for pytest being called with no arguments, skipping the attempt to catch citation/version information.