Learn how to test your Prolog exercises on Exercism
SWI Prolog can either be run interactively or by executing it directly at the command line.
The following command can be used to run the tests from the command line:
swipl -f <exercise>.pl -s <exercise>_tests.plt -g run_tests,halt -t 'halt(1)'
Replace <exercise> with the name of the exercise you are implementing.
To run prolog interactively first run:
swipl
After the prolog console starts, load your implementation and run the tests with:
?- ["<exercise>.pl"].
?- ["<exercise>_tests.plt"].
?- run_tests.
Replace <exercise> with the name of the exercise you are implementing.
Once the above files are loaded, you can apply any changes you've made by running:
?- make.
When you first begin an exercise, only the first test will run. The rest have been skipped by adding condition(pending) to the test goal.
Once the first test passes, un-skip the next test by changing pending in condition(pending) to true.
Repeat for each test until they are all running and passing.
Add the -- --all argument to the end of the command to also run any pending tests:
swipl -f <exercise>.pl -s <exercise>_tests.plt -g run_tests,halt -t 'halt(1)' -- --all