chore: establish learning module baseline

OpenMAIC/tests/course-framework/publish-identity.test.ts

@@ -0,0 +1,14 @@
+import { describe, expect, it } from 'vitest';
+import { courseModuleCoursewareId } from '@/lib/course-framework/publish-identity';
+
+describe('large-course public module identity', () => {
+  it('is stable and does not contain the mutable classroom id', () => {
+    expect(courseModuleCoursewareId('course-123', 2)).toBe('course_course-123_module_2');
+    expect(courseModuleCoursewareId('course-123', 2)).not.toContain('classroom-private-source');
+  });
+
+  it('rejects invalid course and module identities', () => {
+    expect(() => courseModuleCoursewareId('../course', 1)).toThrow('Invalid course id');
+    expect(() => courseModuleCoursewareId('course-123', 0)).toThrow('Invalid module index');
+  });
+});