Skip to main content

test Answer Set Programming programs

Project description

# ASP test
[pytest]( plugin to test ASP source code.

The principle is simple: you write inputs and outputs in a dedicated file, you run pytest,
pytest tells you which outputs are missing or unexpected.

## Installation

pip install pytest-asptest

Obviously, in order to run ASP, a solver must be installed. The only one handled for now is [clingo](
from [potassco labs](

## simple example
Let's consider `dumbasp.lp`, an ASP code we want to be tested:

q(X): p(X).

We want to test the rule in second line. We therefore put it into a block (consecutive lines without blank lines)
and give it a tag, `rule-q`:


% TEST: rule-q
q(X): p(X).

Now we fill `test-rule-q.lp` with multiple tests:

% empty test: no input, no output

q(2). % This will lead to an error : there is no such answer set.

Now, we can run again asptest:

pytest dumbasp.lp

It will report the testing process, indicating which tests are passed, and which are not.

More examples are available in the [Makefile](Makefile), or in [examples/](examples/)

## features
- multiple files support ; tags are shared
- handle generation of multiple answer sets, and strict keyword

### strict output
By default, the atoms given in output parts must be a *subset* of the atoms present in the answer set.
However, if you want to explicitely give *all* atoms that must appear in a given answer set,
you can write `% STRICT OUTPUT` instead of `% OUTPUT` in the test file.

### file uid
The file uid is given by default to all blocks of a file, and is the basename of the file.
You can therefore implement `test-queens.lp` to test all the blocks found in file `queens.lp`,
without having to manually tag all your blocks with it.

### CLI options
asptest add one option to pytest: `--uid-tests-dir`, allowing user to give to asptest the directory in which the `test-*.lp` files are.
For instance, `pytest . -vv --uid-tests-dir asp-test` would allow you to test all ASP files in the current directory, using the test files in `asp-test/` dir.

- auto include input code into output with flag *with-output* on OUTPUT lines in test files

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

pytest-asptest-0.1.0.tar.gz (7.6 kB view hashes)

Uploaded source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page