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Utility for testing command line scripts

Project description

Quickstart

Provides class to be instantiated in tests that check that scripts can be run and give correct output. Usually works something like this in a test module:

import mymodule
from scripttester import ScriptTester
runner = ScriptTester(mymodule)

Then, in the tests, something like:

code, stdout, stderr = runner.run_command(['my-script', my_arg])
assert code == 0
assert stdout == b'This script ran OK'

The class aims to find your scripts whether you have installed (with pip install . or pip install -e . or python setup.py install), or not. If you have not installed, the scripts will not be on your system PATH, and we have to find them. The heuristic is to look (by default) in the directory containing mymodule; if there is a setup.py file there, and a scripts sub-directory, assume that directory contains the scripts.

Note there is no way of using this not-installed mechanism to find entrypoint scripts, that have not been installed. To find these, we would have to run the setup.py file.

Installation

pip install scripttester

Code

See https://github.com/matthew-brett/scripttester

Released under the BSD two-clause license - see the file LICENSE in the source distribution.

travis-ci kindly tests the code automatically under Python versions 2.7, and 3.3 through 3.6.

The latest released version is at https://pypi.python.org/pypi/scripttester

Tests

  • Install scripttester

  • Install the pytest testing framework:

    pip install pytest
    
  • Run the tests with:

    py.test --pyargs scripttester
    

Support

Please put up issues on the scripttester issue tracker.

Project details


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This version

0.1

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