Course Tester

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Syntax checker and validator for edX Courses.

This repo builds a docker image of a minimal edx-platform install capable of doing several Open Learning XML (OLX) (a.k.a. Open edX course exports) content checks and validations.

This is extremely useful for raw XML authored (or latex2edx) courses, but it also has a lot of benefits for validating regular Studio edited courses as well. Notably link checking and some basic accessibility checks

Quick Start

If you have docker installed and a course to test, you don't even need to grab this repository, just run: docker run -i -t -v "/path/to/course_dir":"/course" -w /test_course mitodl/openedx-course-test bash -e test_course replacing path/to/course_dir with the file path to a folder above where you have your course.

Current Tests

• XML syntax validation
• JSON policy file syntax validation
• Static asset file names are in the simple URL set of ^[a-zA-Z0-9_\./-]+$
• Course imports successfully into XMLModuleStore
• Course image validation
  • It exists
  • It is an image
  • It is the correct image type (PNG or JPG)
  • It warns if the aspect ratio isn't correct (1.75)
• All image tags in content have alt attributes for accessibility
• All video units have show_captions set to true (warns only)
• Link checking
  • /static/ magic links point at assets that exist in the course
  • /jump_to/ links point at internally valid courseware
  • /jump_to_id/ point at valid urls within the course
  • http[s] links are tested with HEAD and validated to return 200 status code

Full Usage

Simply run course_test /path/to/course/folder where the course folder has exactly one course in it. This will need to be run on a system that has docker installed and enough ram to run the import (probably about 2GiB).

By default this will get the latest public docker image. If you want to build your own locally instead, you can run course_test -l /path/to/course/folder and it will build it if you don't already have the image. You can also manually build just the image with docker build -t=mitodl/openedx-course-test . and build from scratch (no-cache) with docker build --no-cache -t=mitodl/openedx-course-test .

Known Issues

Due to somewhat ridiculous requirements needed to import ORA problems, they will just show up as failed in the "Possible issues in course" section as Error loading from xml. No module named require.